CVT

User Manual: CVT

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CVT-1
CVT
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION CVT A
B
CVT
Revision: June 2006 2007 Versa
INDEX FOR DTC ........................................................ 6
Alphabetical Index .................................................... 6
DTC No. Index ......................................................... 7
PRECAUTIONS .......................................................... 8
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 8
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 8
OPERATION PROCEDURE ................................. 8
Precautions for On Board Diagnostic (OBD) System
of CVT and Engine ................................................... 9
Service After Replacing TCM and Transaxle
Assembly .................................................................. 9
SERVICE AFTER REPLACING TCM AND
TRANSAXLE ASSEMBLY ..................................... 9
PATTERN A .......................................................... 9
PATTERN B .......................................................... 9
PATTERN C .........................................................11
Removal and Installation Procedure for CVT Unit
Connector ................................................................11
REMOVAL ............................................................11
INSTALLATION ................................................... 12
Precautions ............................................................ 13
Service Notice or Precautions ................................ 13
CVT FLUID COOLER SERVICE ......................... 13
OBD-II SELF-DIAGNOSIS .................................. 14
PREPARATION ......................................................... 15
Special Service Tools ............................................. 15
Commercial Service Tools ...................................... 15
CVT FLUID ............................................................... 16
Checking CVT Fluid ............................................... 16
FLUID LEVEL CHECK ........................................ 16
FLUID CONDITION CHECK ............................... 17
Changing CVT Fluid ............................................... 17
CVT Fluid Cooler Cleaning .................................... 18
CVT FLUID COOLER CLEANING PROCEDURE
... 18
CVT FLUID COOLER DIAGNOSIS PROCE-
DURE .................................................................. 19
CVT FLUID COOLER INSPECTION PROCE-
DURE .................................................................. 20
CVT FLUID COOLER FINAL INSPECTION ........ 20
CVT SYSTEM ............................................................ 21
Cross-sectional View - RE0F08A ........................... 21
Control System ....................................................... 22
Hydraulic Control System ....................................... 23
TCM Function ......................................................... 24
CONTROL SYSTEM OUTLINE .......................... 24
CONTROL SYSTEM DIAGRAM ......................... 24
CAN Communication .............................................. 25
SYSTEM DESCRIPTION .................................... 25
Input/Output Signal of TCM .................................... 25
Line Pressure and Secondary Pressure Control .... 26
NORMAL CONTROL .......................................... 26
FEEDBACK CONTROL ...................................... 26
Shift Control ............................................................ 26
“D” POSITION ..................................................... 27
OVERDRIVE-OFF MODE ................................... 27
“L” POSITION ...................................................... 27
DOWNHILL ENGINE BRAKE CONTROL (AUTO
ENGINE BRAKE CONTROL) .............................. 27
ACCELERATION CONTROL .............................. 27
Lock-up and Select Control .................................... 28
TORQUE CONVERTER CLUTCH AND SELECT
CONTROL VALVE CONTROL ............................ 28
Control Valve .......................................................... 29
FUNCTION OF CONTROL VALVE ..................... 29
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 30
Introduction ............................................................. 30
OBD-II Function for CVT System ........................... 30
One or Two Trip Detection Logic of OBD-II ............ 30
ONE TRIP DETECTION LOGIC ......................... 30
TWO TRIP DETECTION LOGIC ......................... 30
OBD-II Diagnostic Trouble Code (DTC) ................. 30
HOW TO READ DTC AND 1ST TRIP DTC ......... 30
HOW TO ERASE DTC ........................................ 31
HOW TO ERASE DTC (WITH CONSULT-II) ....... 32
CVT-2
Revision: June 2006 2007 Versa
HOW TO ERASE DTC (WITH GST) ................... 32
Malfunction Indicator Lamp (MIL) ........................... 33
DESCRIPTION .................................................... 33
TROUBLE DIAGNOSIS ............................................ 34
DTC Inspection Priority Chart ................................. 34
Fail-safe .................................................................. 34
FAIL-SAFE FUNCTION ....................................... 34
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 35
INTRODUCTION ................................................. 35
WORK FLOW ...................................................... 36
DIAGNOSTIC WORKSHEET .............................. 37
CVT Electrical Parts Location ................................. 40
Circuit Diagram ....................................................... 42
Inspections before Trouble Diagnosis .................... 43
CVT FLUID CHECK ............................................ 43
STALL TEST ........................................................ 43
LINE PRESSURE TEST ...................................... 45
Road Test ............................................................... 46
DESCRIPTION .................................................... 46
CONSULT-II OPERATION PROCEDURE ........... 47
Check before Engine Is Started .............................. 49
Check at Idle ........................................................... 49
Cruise Test .............................................................. 50
Vehicle Speed When Shifting Gears ...................... 53
TCM Input/Output Signal Reference Values ........... 54
TCM TERMINAL CONNECTOR LAYOUT .......... 54
TCM INSPECTION TABLE .................................. 54
CONSULT-II Function (TRANSMISSION) .............. 57
FUNCTION .......................................................... 57
CONSULT-II REFERENCE VALUE ..................... 57
CONSULT-II SETTING PROCEDURE ................ 59
WORK SUPPORT MODE ................................... 59
SELF-DIAGNOSTIC RESULT MODE ................. 60
DATA MONITOR MODE ...................................... 64
CAN DIAGNOSTIC SUPPORT MONITOR
MODE .................................................................. 66
Diagnostic Procedure without CONSULT-II ............ 67
OBD-II SELF-DIAGNOSTIC PROCEDURE
(WITH GST) ......................................................... 67
DTC U1000 CAN COMMUNICATION LINE .............. 68
Description .............................................................. 68
On Board Diagnosis Logic ...................................... 68
Possible Cause ....................................................... 68
DTC Confirmation Procedure ................................. 68
WITH CONSULT-II .............................................. 68
WITH GST ........................................................... 68
Wiring Diagram — CVT — CAN ............................. 69
Diagnostic Procedure ............................................. 70
DTC U1010 TRANSMISSION CONTROL MODULE
(CAN) ......................................................................... 71
Description .............................................................. 71
On Board Diagnosis Logic ...................................... 71
Possible Cause ....................................................... 71
DTC Confirmation Procedure ................................. 71
WITH CONSULT-II .............................................. 71
WITH GST ........................................................... 71
Diagnostic Procedure ............................................. 71
DTC P0615 START SIGNAL CIRCUIT ..................... 72
Description ..............................................................72
CONSULT-II Reference Value .................................72
On Board Diagnosis Logic ......................................72
Possible Cause .......................................................72
DTC Confirmation Procedure ..................................72
WITH CONSULT-II ...............................................72
Wiring Diagram — CVT — STSIG ..........................73
Diagnostic Procedure ..............................................74
DTC P0703 STOP LAMP SWITCH CIRCUIT ............76
Description ..............................................................76
CONSULT-II Reference Value .................................76
On Board Diagnosis Logic ......................................76
Possible Cause .......................................................76
DTC Confirmation Procedure ..................................76
WITH CONSULT-II ...............................................76
Diagnostic Procedure ..............................................77
DTC P0705 PARK/NEUTRAL POSITION SWITCH ...78
Description ..............................................................78
CONSULT-II Reference Value .................................78
On Board Diagnosis Logic ......................................78
Possible Cause .......................................................78
DTC Confirmation Procedure ..................................78
WITH CONSULT-II ...............................................79
WITH GST ...........................................................79
Wiring Diagram — CVT — PNP/SW .......................80
Diagnostic Procedure ..............................................82
Component Inspection ............................................84
PNP SWITCH ......................................................84
DTC P0710 CVT FLUID TEMPERATURE SENSOR
CIRCUIT ....................................................................85
Description ..............................................................85
CONSULT-II Reference Value .................................85
On Board Diagnosis Logic ......................................85
Possible Cause .......................................................85
DTC Confirmation Procedure ..................................85
WITH CONSULT-II ...............................................85
WITH GST ...........................................................85
Wiring Diagram — CVT — FTS ..............................86
Diagnostic Procedure ..............................................87
Component Inspection ............................................89
CVT FLUID TEMPERATURE SENSOR ..............89
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI
SPEED SENSOR) .....................................................90
Description ..............................................................90
CONSULT-II Reference Value .................................90
On Board Diagnosis Logic ......................................90
Possible Cause .......................................................90
DTC Confirmation Procedure ..................................90
WITH CONSULT-II ...............................................90
WITH GST ...........................................................90
Wiring Diagram — CVT — PRSCVT ......................91
Diagnostic Procedure ..............................................92
DTC P0720 VEHICLE SPEED SENSOR CVT (SEC-
ONDARY SPEED SENSOR) .....................................95
Description ..............................................................95
CONSULT-II Reference Value .................................95
On Board Diagnosis Logic ......................................95
Possible Cause .......................................................95
DTC Confirmation Procedure ..................................95
CVT-3
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Revision: June 2006 2007 Versa
WITH CONSULT-II .............................................. 95
WITH GST ........................................................... 95
Wiring Diagram — CVT — SESCVT ...................... 96
Diagnostic Procedure ............................................. 97
DTC P0725 ENGINE SPEED SIGNAL ................... 101
Description ........................................................... 101
CONSULT-II Reference Value .............................. 101
On Board Diagnosis Logic ................................... 101
Possible Cause .................................................... 101
DTC Confirmation Procedure ............................... 101
WITH CONSULT-II ............................................ 101
Diagnostic Procedure ........................................... 101
DTC P0730 BELT DAMAGE .................................. 103
Description ........................................................... 103
CONSULT-II Reference Value .............................. 103
On Board Diagnosis Logic ................................... 103
Possible Cause .................................................... 103
DTC Confirmation Procedure ............................... 103
WITH CONSULT-II ............................................ 103
Diagnostic Procedure ........................................... 104
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE ................................................. 105
Description ........................................................... 105
CONSULT-II Reference Value .............................. 105
On Board Diagnosis Logic ................................... 105
Possible Cause .................................................... 105
DTC Confirmation Procedure ............................... 105
WITH CONSULT-II ............................................ 105
WITH GST ......................................................... 105
Wiring Diagram — CVT — TCV ........................... 106
Diagnostic Procedure ........................................... 107
Component Inspection ......................................... 109
TORQUE CONVERTER CLUTCH SOLENOID
VALVE ............................................................... 109
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) ..110
Description ............................................................110
CONSULT-II Reference Value ...............................110
On Board Diagnosis Logic ....................................110
Possible Cause .....................................................110
DTC Confirmation Procedure ................................110
WITH CONSULT-II .............................................110
WITH GST ..........................................................110
Diagnostic Procedure ............................................ 111
DTC P0745 LINE PRESSURE SOLENOID VALVE ..113
Description ............................................................113
CONSULT-II Reference Value ...............................113
On Board Diagnosis Logic ....................................113
Possible Cause .....................................................113
DTC Confirmation Procedure ................................113
WITH CONSULT-II .............................................113
WITH GST ..........................................................113
Wiring Diagram — CVT — LPSV ..........................114
Diagnostic Procedure ............................................115
Component Inspection ..........................................117
PRESSURE CONTROL SOLENOID VALVE A
(LINE PRESSURE SOLENOID VALVE) ............117
DTC P0746 PRESSURE CONTROL SOLENOID A
PERFORMANCE (LINE PRESSURE SOLENOID
VALVE) .....................................................................118
Description ............................................................118
CONSULT-II Reference Value ..............................118
On Board Diagnosis Logic ....................................118
Possible Cause .....................................................118
DTC Confirmation Procedure ...............................118
WITH CONSULT-II ............................................118
WITH GST .........................................................118
Diagnostic Procedure ...........................................119
DTC P0776 PRESSURE CONTROL SOLENOID B
PERFORMANCE (SEC PRESSURE SOLENOID
VALVE) ....................................................................121
Description ............................................................121
CONSULT-II Reference Value ..............................121
On Board Diagnosis Logic ....................................121
Possible Cause .....................................................121
DTC Confirmation Procedure ...............................121
WITH CONSULT-II ............................................121
WITH GST .........................................................121
Diagnostic Procedure ...........................................122
DTC P0778 PRESSURE CONTROL SOLENOID B
ELECTRICAL (SEC PRESSURE SOLENOID
VALVE) ....................................................................124
Description ............................................................124
CONSULT-II Reference Value ..............................124
On Board Diagnosis Logic ....................................124
Possible Cause .....................................................124
DTC Confirmation Procedure ...............................124
WITH CONSULT-II ............................................124
WITH GST .........................................................124
Wiring Diagram — CVT — SECPSV ....................125
Diagnostic Procedure ...........................................126
Component Inspection ..........................................128
PRESSURE CONTROL SOLENOID VALVE B
(SECONDARY PRESSURE SOLENOID VALVE)
.128
DTC P0840 TRANSMISSION FLUID PRESSURE
SENSOR A CIRCUIT (SEC PRESSURE SENSOR) .129
Description ............................................................129
CONSULT-II Reference Value ..............................129
On Board Diagnosis Logic ....................................129
Possible Cause .....................................................129
DTC Confirmation Procedure ...............................129
WITH CONSULT-II ............................................129
WITH GST .........................................................129
Wiring Diagram — CVT — SECPS ......................130
Diagnostic Procedure ...........................................131
DTC P0841 PRESSURE SENSOR FUNCTION .....134
Description ............................................................134
CONSULT-II Reference Value ..............................134
On Board Diagnosis Logic ....................................134
Possible Cause .....................................................134
DTC Confirmation Procedure ...............................134
WITH CONSULT-II ............................................134
Diagnostic Procedure ...........................................135
DTC P0845 TRANSMISSION FLUID PRESSURE
SENSOR B CIRCUIT (PRI PRESSURE SENSOR) .137
Description ............................................................137
CONSULT-II Reference Value ..............................137
On Board Diagnosis Logic ....................................137
CVT-4
Revision: June 2006 2007 Versa
Possible Cause .....................................................137
DTC Confirmation Procedure ...............................137
WITH CONSULT-II ............................................137
WITH GST .........................................................137
Wiring Diagram — CVT — PRIPS ........................138
Diagnostic Procedure ...........................................139
DTC P0868 SECONDARY PRESSURE DOWN .....142
Description ............................................................142
CONSULT-II Reference Value ..............................142
On Board Diagnosis Logic ....................................142
Possible Cause .....................................................142
DTC Confirmation Procedure ...............................142
WITH CONSULT-II ............................................142
Diagnostic Procedure ...........................................143
DTC P1701 TRANSMISSION CONTROL MODULE
(POWER SUPPLY) ..................................................145
Description ............................................................145
On Board Diagnosis Logic ....................................145
Possible Cause .....................................................145
DTC Confirmation Procedure ...............................145
WITH CONSULT-II ............................................145
Wiring Diagram — CVT — POWER .....................146
Diagnostic Procedure ...........................................147
DTC P1705 THROTTLE POSITION SENSOR .......150
Description ............................................................150
CONSULT-II Reference Value ..............................150
On Board Diagnosis Logic ....................................150
Possible Cause .....................................................150
DTC Confirmation Procedure ...............................150
WITH CONSULT-II ............................................150
Diagnostic Procedure ...........................................151
DTC P1722 ESTM VEHICLE SPEED SIGNAL .......152
Description ............................................................152
CONSULT-II Reference Value ..............................152
On Board Diagnosis Logic ....................................152
Possible Cause .....................................................152
DTC Confirmation Procedure ...............................152
WITH CONSULT-II ............................................152
Diagnostic Procedure ...........................................153
DTC P1723 CVT SPEED SENSOR FUNCTION .....154
Description ............................................................154
On Board Diagnosis Logic ....................................154
Possible Cause .....................................................154
DTC Confirmation Procedure ...............................154
WITH CONSULT-II ............................................154
Diagnostic Procedure ...........................................155
DTC P1726 ELECTRIC THROTTLE CONTROL
SYSTEM ..................................................................156
Description ............................................................156
On Board Diagnosis Logic ....................................156
Possible Cause .....................................................156
DTC Confirmation Procedure ...............................156
WITH CONSULT-II ............................................156
Diagnostic Procedure ...........................................157
DTC P1740 LOCK-UP SELECT SOLENOID VALVE
CIRCUIT ..................................................................158
Description ............................................................158
CONSULT-II Reference Value ..............................158
On Board Diagnosis Logic ....................................158
Possible Cause .....................................................158
DTC Confirmation Procedure ................................158
WITH CONSULT-II .............................................158
WITH GST .........................................................158
Wiring Diagram — CVT — L/USSV ......................159
Diagnostic Procedure ............................................160
Component Inspection ..........................................162
LOCK-UP SELECT SOLENOID VALVE ............162
DTC P1745 LINE PRESSURE CONTROL .............163
Description ............................................................163
On Board Diagnosis Logic ....................................163
Possible Cause .....................................................163
DTC Confirmation Procedure ................................163
WITH CONSULT-II .............................................163
Diagnostic Procedure ............................................163
DTC P1777 STEP MOTOR - CIRCUIT ....................164
Description ............................................................164
CONSULT-II Reference Value ...............................164
On Board Diagnosis Logic ....................................164
Possible Cause .....................................................164
DTC Confirmation Procedure ................................164
WITH CONSULT-II .............................................164
WITH GST .........................................................164
Wiring Diagram — CVT — STM ...........................165
Diagnostic Procedure ............................................166
Component Inspection ..........................................167
STEP MOTOR ...................................................167
DTC P1778 STEP MOTOR - FUNCTION ................168
Description ............................................................168
CONSULT-II Reference Value ...............................168
On Board Diagnosis Logic ....................................168
Possible Cause .....................................................168
DTC Confirmation Procedure ................................168
WITH CONSULT-II .............................................168
WITH GST .........................................................169
Diagnostic Procedure ............................................169
OVERDRIVE CONTROL SWITCH ..........................170
Description ............................................................170
CONSULT-II Reference Value ...............................170
Wiring Diagram — CVT — ODSW ........................171
Diagnostic Procedure ............................................172
Component Inspection ..........................................174
OVERDRIVE CONTROL SWITCH ....................174
SHIFT POSITION INDICATOR CIRCUIT ................175
Description ............................................................175
CONSULT-II Reference Value ...............................175
Diagnostic Procedure ............................................175
SHIFT POSITION INDICATOR SYMPTOM
CHART ...............................................................175
TROUBLE DIAGNOSIS FOR SYMPTOMS ............176
Wiring Diagram — CVT — NONDTC ...................176
O/D OFF Indicator Lamp Does Not Come On ......180
SYMPTOM: ........................................................180
DIAGNOSTIC PROCEDURE .............................180
Engine Cannot Be Started in “P” and “N” Position .181
SYMPTOM: ........................................................181
DIAGNOSTIC PROCEDURE .............................181
In “P” Position, Vehicle Moves Forward or Backward
When Pushed .......................................................182
CVT-5
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Revision: June 2006 2007 Versa
SYMPTOM: ....................................................... 182
DIAGNOSTIC PROCEDURE ............................ 182
In “N” Position, Vehicle Moves ............................. 182
SYMPTOM: ....................................................... 182
DIAGNOSTIC PROCEDURE ............................ 182
Large Shock “N” “R” Position ........................... 183
SYMPTOM: ....................................................... 183
DIAGNOSTIC PROCEDURE ............................ 183
Vehicle Does Not Creep Backward in “R” Position . 184
SYMPTOM: ....................................................... 184
DIAGNOSTIC PROCEDURE ............................ 184
Vehicle Does Not Creep Forward in “D” or “L” Posi-
tion ....................................................................... 185
SYMPTOM: ....................................................... 185
DIAGNOSTIC PROCEDURE ............................ 185
Vehicle Speed Does Not Change in “L” Position .. 186
SYMPTOM: ....................................................... 186
DIAGNOSTIC PROCEDURE ............................ 186
Vehicle Speed Does Not Change in overdrive-off
mode .................................................................... 187
SYMPTOM: ....................................................... 187
DIAGNOSTIC PROCEDURE ............................ 187
Vehicle Speed Does Not Change in “D” Position . 188
SYMPTOM: ....................................................... 188
DIAGNOSTIC PROCEDURE ............................ 188
Vehicle Does Not Decelerate by Engine Brake .... 189
SYMPTOM: ....................................................... 189
DIAGNOSTIC PROCEDURE ............................ 189
TRANSMISSION CONTROL MODULE ................. 190
Removal and Installation ...................................... 190
COMPONENTS ................................................ 190
REMOVAL ......................................................... 190
INSTALLATION ................................................. 190
SHIFT CONTROL SYSTEM ................................... 191
Removal and Installation ...................................... 191
CONTROL DEVICE COMPONENTS ............... 191
CONTROL CABLE COMPONENTS ................. 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 194
Control Device Disassembly and Assembly ......... 194
DISASSEMBLY ................................................. 194
ASSEMBLY .......................................................194
Selector Lever Knob Removal and Installation .....195
REMOVAL .........................................................195
INSTALLATION .................................................195
Adjustment of CVT Position ..................................195
Checking of CVT Position .....................................196
CVT SHIFT LOCK SYSTEM ...................................197
Description ............................................................197
Shift Lock System Electrical Parts Location .........197
Wiring Diagram — CVT — SHIFT ........................198
Diagnostic Procedure ...........................................199
KEY INTERLOCK CABLE ......................................202
Removal and Installation ......................................202
COMPONENTS .................................................202
REMOVAL .........................................................202
INSTALLATION .................................................203
AIR BREATHER HOSE ..........................................205
Removal and Installation ......................................205
REMOVAL .........................................................205
INSTALLATION .................................................205
DIFFERENTIAL SIDE OIL SEAL ............................206
Removal and Installation ......................................206
COMPONENTS .................................................206
REMOVAL .........................................................206
INSTALLATION .................................................206
TRANSAXLE ASSEMBLY ......................................207
Removal and Installation ......................................207
COMPONENTS .................................................207
REMOVAL .........................................................207
INSTALLATION .................................................208
SERVICE DATA AND SPECIFICATIONS (SDS) ....210
General Specifications ..........................................210
Vehicle Speed When Shifting Gears ....................210
Stall Speed ...........................................................210
Line Pressure .......................................................210
Solenoid Valves ....................................................210
CVT Fluid Temperature Sensor ............................211
Primary Speed Sensor .........................................211
Secondary Speed Sensor .....................................211
Removal and Installation ......................................211
CVT-6
INDEX FOR DTC
Revision: June 2006 2007 Versa
INDEX FOR DTC PFP:00024
Alphabetical Index UCS005XB
NOTE:
If DTC U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to CVT-68 .
*1: These numbers are prescribed by SAE J2012.
*2: Models without ABS does not indicate.
Items
(CONSULT-II screen terms)
DTC
Reference page
OBD-II Except OBD-II
CONSULT-II
GST*1 CONSULT-II only
“TRANSMISSION”
A/T TCC S/V FNCTN P0744 P0744 CVT-110
ATF TEMP SEN/CIRC P0710 P0710 CVT-85
BELT DAMG P0730 CVT-103
BRAKE SW/CIRC P0703 CVT-76
CAN COMM CIRCUIT U1000 U1000 CVT-68
CONTROL UNIT(CAN) U1010 U1010 CVT-71
CVT SPD SEN/FNCTN P1723 CVT-154
ENGINE SPEED SIG P0725 CVT-101
ELEC TH CONTROL P1726 CVT-156
ESTM VEH SPD SIG*2 P1722 CVT-152
INPUT SPD SEN/CIRC P0715 P0715 CVT-90
L/PRESS CONTROL P1745 CVT-163
L/PRESS SOL/CIRC P0745 P0745 CVT-113
LU-SLCT SOL/CIRC P1740 P1740 CVT-158
PNP SW/CIRC P0705 P0705 CVT-78
PRESS SEN/FNCTN P0841 CVT-134
PRS CNT SOL/A FCTN P0746 P0746 CVT-118
PRS CNT SOL/B CIRC P0778 P0778 CVT-124
PRS CNT SOL/B FCTN P0776 P0776 CVT-121
SEC/PRESS DOWN P0868 CVT-142
STARTER RELAY/CIRC P0615 CVT-72
STEP MOTR CIRC P1777 P1777 CVT-164
STEP MOTR/FNC P1778 P1778 CVT-168
TCC SOLENOID/CIRC P0740 P0740 CVT-105
TCM-POWER SUPPLY P1701 CVT-145
TP SEN/CIRC A/T P1705 CVT-150
TR PRS SENS/A CIRC P0840 P0840 CVT-129
TR PRS SENS/B CIRC P0845 P0845 CVT-137
VEH SPD SEN/CIR AT P0720 P0720 CVT-95
INDEX FOR DTC
CVT-7
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CVT
Revision: June 2006 2007 Versa
DTC No. Index UCS005XC
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to CVT-68 .
*1: These numbers are prescribed by SAE J2012.
*2: Models without ABS does not indicate.
DTC
Items
(CONSULT-II screen terms) Reference page
OBD-II Except OBD-II
CONSULT-II
GST*1CONSULT-II only
“TRANSMISSION”
P0615 STARTER RELAY/CIRC CVT-72
P0703 BRAKE SW/CIRC CVT-76
P0705 P0705 PNP SW/CIRC CVT-78
P0710 P0710 ATF TEMP SEN/CIRC CVT-85
P0715 P0715 INPUT SPD SEN/CIRC CVT-90
P0720 P0720 VEH SPD SEN/CIR AT CVT-95
P0725 ENGINE SPEED SIG CVT-101
P0730 BELT DAMG CVT-103
P0740 P0740 TCC SOLENOID/CIRC CVT-105
P0744 P0744 A/T TCC S/V FNCTN CVT-110
P0745 P0745 L/PRESS SOL/CIRC CVT-113
P0746 P0746 PRS CNT SOL/A FCTN CVT-118
P0776 P0776 PRS CNT SOL/B FCTN CVT-121
P0778 P0778 PRS CNT SOL/B CIRC CVT-124
P0840 P0840 TR PRS SENS/A CIRC CVT-129
P0841 PRESS SEN/FNCTN CVT-134
P0845 P0845 TR PRS SENS/B CIRC CVT-137
P0868 SEC/PRESS DOWN CVT-142
P1701 TCM-POWER SUPPLY CVT-145
P1705 TP SEN/CIRC A/T CVT-150
P1722 ESTM VEH SPD SIG*2CVT-152
P1723 CVT SPD SEN/FNCTN CVT-154
P1726 ELEC TH CONTROL CVT-156
P1740 P1740 LU-SLCT SOL/CIRC CVT-158
P1745 L/PRESS CONTROL CVT-163
P1777 P1777 STEP MOTR CIRC CVT-164
P1778 P1778 STEP MOTR/FNC CVT-168
U1000 U1000 CAN COMM CIRCUIT CVT-68
U1010 U1010 CONTROL UNIT(CAN) CVT-71
CVT-8
PRECAUTIONS
Revision: June 2006 2007 Versa
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” UCS005XD
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery Disconnect
UCS006Y0
NOTE:
This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
LOCK position.
Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ACC position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the LOCK position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
PRECAUTIONS
CVT-9
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Precautions for On Board Diagnostic (OBD) System of CVT and Engine UCS005XG
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
Be sure to turn the ignition switch OFF and disconnect the battery cable from the negative termi-
nal before any repair or inspection work. The open/short circuit of related switches, sensors, sole-
noid valves, etc. will cause the MIL to light up.
Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EVAP system or fuel injection system,
etc.
Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Service After Replacing TCM and Transaxle Assembly UCS006L3
SERVICE AFTER REPLACING TCM AND TRANSAXLE ASSEMBLY
Perform the applicable service in the following sheet when replacing TCM or transaxle assembly
CAUTION:
Do not start the engine until the service is completed.
“A/T C/U POWER SUPPLY [P1701]” may be indicated soon after replacing TCM or transaxle
assembly (after erasing the memory at the pattern B). Restart the self-diagnosis after erasing the
self-diagnosis result. Check that no error is detected.
NOTE:
Old unit means that the unit has been already used for another vehicle.
PATTERN A
1. Shift the selector lever to “P” position after replacing TCM. Turn the ignition switch ON.
2. Check that the shift position indicator in the combination meter turns ON (It indicates approximately 1 or 2
seconds after turning the ignition switch ON.)
Check the following items if the shift position indicator does not turn ON. Repair or replace the shift
position indicator if necessary.
The harness between TCM and ROM ASSY in the transaxle assembly is open or short.
Cable disconnected, loosen, or bent from the connector housing.
PATTERN B
1. Turn the ignition switch ON after replacing each part.
2. Connect CONSULT-II connector to data link connector. Refer to GI-38, "CONSULT-II Start Procedure" .
3. Start engine.
CAUTION:
Do not start the driving.
4. Touch CONSULT-II screen in the order of “START (NISSAN BASED VHCL)”, “TRANSMISSION”, “DATA
MONITOR”, and “MAIN SIGNALS”.
5. Warm up the transaxle assembly until “ATF TEMP” indicates 48 (approximately 20°C) or more. Turn the
ignition switch OFF.
TCM CVT assembly Service pattern
Replace the new unit. Do not replace the unit. CVT-9, "PATTERN A"
Do not replace the unit. Replace the new or old unit.
CVT-9, "PATTERN B"
Replace the old unit. Do not replace the unit.
Replace the new or old unit.
Replace the new unit. Replace the new or old unit. CVT-11, "PATTERN C"
CVT-10
PRECAUTIONS
Revision: June 2006 2007 Versa
6. Turn the ignition switch ON.
CAUTION:
Do not start engine.
7. Select “SELF-DIAG RESULTS”.
8. Shift the selector lever to “R” position.
9. Depress slightly the accelerator pedal (Pedal angle: 2/8) while depressing the brake pedal.
10. Perform “ERASE”.
11. Shift the selector lever to “R” position after replacing TCM. Turn the ignition switch OFF.
12. Wait approximately 10 minutes after turning the ignition switch OFF.
13. Turn the ignition switch ON while shifting the selector lever to “R” position.
CAUTION:
Do not start engine.
14. Select “CALIBRATION DATA”.
15. Check that the value on “CALIBRATION DATA” is same as the data after erasing CVT-11, "Calibration
Data" .
Restart the procedure from step 3 if the values are not same.
16. Shift the selector lever to “P” position.
17. Check that the shift position indicator in the combination meter turns ON (It indicates approximately 1 or 2
seconds after shifting the selector lever to “P” position.)
Check the following items if the shift position indicator does not turn ON. Repair or replace the shift
position indicator if necessary.
The harness between TCM and ROM ASSY in the transaxle assembly is open or short.
Cable disconnected, loosen, or bent from the connector housing.
Power supply and ground of TCM. Refer to CVT-145, "DTC P1701 TRANSMISSION CONTROL MOD-
ULE (POWER SUPPLY)" .
PRECAUTIONS
CVT-11
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Calibration Data
PATTERN C
1. Replace the transaxle assembly first, and then replace TCM.
2. Perform the service of “PATTERN A”.
(Perform the service of “Pattern B” if TCM is replaced first.)
Removal and Installation Procedure for CVT Unit Connector UCS005XI
REMOVAL
Rotate bayonet ring counterclockwise, pull out CVT unit harness
connector upward and disconnect it.
SCIA7411E
SCIA2096E
CVT-12
PRECAUTIONS
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INSTALLATION
1. Align CVT unit harness connector terminal body marking with
bayonet ring marking, insert CVT unit harness connector, and
then rotate bayonet ring clockwise.
2. Rotate bayonet ring clockwise until CVT unit harness connector
terminal body marking is aligned with the bayonet ring marking
(linear slit) as shown.
CAUTION:
Securely align CVT unit harness connector terminal body
marking with bayonet ring marking (linear slit). Do not
make a half fit condition as shown.
Do not mistake the bayonet ring marking (linear slit) for
other dent portion.
SCIA2097E
SCIA2098E
SCIA2099E
PRECAUTIONS
CVT-13
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CVT
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Precautions UCS005XJ
NOTE:
If any malfunction occurs in the RE0F08A model transaxle, replace the entire transaxle assembly.
Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Because battery voltage is applied to TCM
even if ignition switch is turned OFF.
When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
When connecting pin connectors make sure that there are
not any bends or breaks on TCM pin terminal.
Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not. CVT-54, "TCM INSPECTION TABLE".
After performing each TROUBLE DIAGNOSIS, perform
“DTC Confirmation Procedure”.
If the repair is completed the DTC should not be displayed
in the “DTC Confirmation Procedure”.
Always use the specified brand of CVT fluid. Refer to MA-11,
"Fluids and Lubricants" .
Use lint-free paper, not cloth rags, during work.
After replacing the CVT fluid, dispose of the waste oil using the
methods prescribed by law, ordinance, etc.
Service Notice or Precautions UCS005XK
CVT FLUID COOLER SERVICE
If CVT fluid contains friction material (clutches, brakes, etc.), or if an CVT is replaced, inspect and clean the
CVT fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using cleaning solvent and
compressed air after repair. For CVT fluid cooler cleaning procedure, refer to CVT-18, "CVT Fluid Cooler
Cleaning" . For radiator replacement, refer to CO-11, "RADIATOR" .
SEF289H
SEF291H
MEF040DA
SEF217U
CVT-14
PRECAUTIONS
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OBD-II SELF-DIAGNOSIS
CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read
through the blinking pattern of the malfunction indicator lamp (MIL). Refer to the table on CVT-61, "Display
Items List" for the indicator used to display each self-diagnostic result.
The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure on CVT-31, "HOW TO ERASE DTC" to complete the repair and
avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-47, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" .
Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-68, "HAR-
NESS CONNECTOR" .
PREPARATION
CVT-15
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PREPARATION PFP:00002
Special Service Tools UCS005XL
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools UCS006XI
Tool number
(Kent-Moore No.)
Tool name
Description
(OTC3492)
Oil pressure gauge set
Measuring line pressure
(J-47244)
Drift
Installing differential side oil seal
Transaxle case side (left)
a: 65.83 mm (2.59 in) dia.
b: 53.85 mm (2.12 in) dia.
ST33400001
(J-47005)
Drift
Installing differential side oil seal
Converter housing side (right)
a: 69.85 mm (2.75 in) dia.
b: 49.53 mm (1.95 in) dia.
SCIA7531E
SCIA5777E
SCIA5777E
Tool number
Tool name Description
Power tool Loosening nuts and bolts
PBIC0190E
CVT-16
CVT FLUID
Revision: June 2006 2007 Versa
CVT FLUID PFP:KLE50
Checking CVT Fluid UCS005XN
FLUID LEVEL CHECK
Fluid level should be checked with the fluid warmed up to 50 to 80°C (122 to 176°F).
1. Check for fluid leakage.
2. With the engine warmed up, drive the vehicle to warm up the
CVT fluid. When ambient temperature is 20°C (68°F), it takes
about 10 minutes for the CVT fluid to warm up to 50 to 80°C
(122 to 176°F).
3. Park the vehicle on a level surface and set the parking brake.
4. With engine at idle, while depressing brake pedal, move the
selector lever throughout the entire shift range and return it to
the “P” position.
5. Press the tab on the CVT fluid level gauge to release the lock
and pull out the CVT fluid level gauge from the CVT fluid charg-
ing pipe.
6. Wipe fluid off the CVT fluid level gauge. Then rotate the CVT
fluid level gauge 180° and re-insert it into the CVT charging pipe
as far as it will go.
CAUTION:
Always use lint free paper towels to wipe fluid off the CVT
fluid level gauge.
7. Remove the CVT fluid level gauge and check that the fluid level
is within the specified range as shown. If the fluid level is at or
below the low side of the range, add the necessary specified
NISSAN CVT fluid through the CVT charging pipe.
CAUTION:
Only use specified NISSAN CVT fluid.
Do not overfill the CVT.
8. Install the CVT fluid level gauge to the CVT fluid charging pipe until it locks.
CAUTION:
When CVT fluid level gauge is installed into the CVT fluid charging pipe, make sure that the CVT
fluid level gauge is securely locked in place.
SMA146B
SCIA1933E
SCIA1931E
Fluid grade: Refer to MA-11, "Fluids and Lubri-
cants" .
SCIA1932E
CVT FLUID
CVT-17
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FLUID CONDITION CHECK
Changing CVT Fluid UCS005XO
1. Warm up CVT fluid by driving the vehicle for 10 minutes.
: Vehicle front
Radiator (2)
CVT fluid cooler hose [inlet side (3)]
Transaxle assembly (4)
2. Drain CVT fluid from CVT fluid cooler hose [outlet side (1)] and
refill with new specified NISSAN CVT fluid in the CVT fluid
charging pipe with the engine running at idle speed.
CAUTION:
Only use the specified NISSAN CVT fluid.
3. Refill until new CVT fluid comes out from CVT fluid cooler hose [outlet side (1)].
NOTE:
About 30 to 50% extra fluid will be required for this procedure.
4. Check fluid level and condition. Refer to CVT-16, "Checking CVT Fluid" .
CAUTION:
Delete CVT fluid deterioration date with CONSULT-II after changing CVT fluid. Refer to CVT-60,
"Check CVT Fluid Deterioration Date" .
Fluid status Conceivable cause Required operation
Varnished (viscous
varnish state)
Clutch, brake
scorched
Replace the CVT fluid and check the
CVT main unit and the vehicle for
malfunctions (wire harness, cooler
pipes, etc.)
Milky white or
cloudy
Water in the fluid Replace the CVT fluid and check for
places where water is getting in.
Large amount of
metal powder mixed
in fluid
Unusual wear of
sliding parts within
CVT
Replace the CVT fluid and check for
improper operation of the CVT.
ATA0022D
Fluid capacity and grade: Refer to MA-11, "Fluids
and Lubricants" .
SCIA6088E
CVT-18
CVT FLUID
Revision: June 2006 2007 Versa
CVT Fluid Cooler Cleaning UCS005XP
Whenever a CVT is repaired, overhauled, or replaced, the CVT fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can be trapped or become deposit in the CVT fluid cooler. This
debris can contaminate the newly serviced CVT or, in severe cases, can block or restrict the flow of CVT fluid.
In either case, malfunction of the newly serviced CVT may occur.
Debris, if present, may deposit as CVT fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
CVT FLUID COOLER CLEANING PROCEDURE
1. Identify the CVT inlet and outlet fluid cooler hoses.
2. Position an oil pan under the inlet and outlet cooler hoses.
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any CVT fluid that remains in the cooler hoses to drain into
the oil pan.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
Spray Transmission Cooler Cleaner only with adequate
ventilation.
Avoid contact with eyes and skin.
Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis-
sion Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the
cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet
hose.
9. Blow compressed air regulated to 5 to 9 kg/cm2 (70 to 130 psi)
through the cooler outlet hose for 10 seconds to force out any
remaining CVT fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the CVT
fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the tran-
saxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 to 9 kg/cm2 (70 to 130 psi) through each steel line from the cooler
side back toward the transaxle for 10 seconds to force out any remaining CVT fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform CVT-19, "CVT FLUID COOLER DIAGNOSIS PROCEDURE" .
SCIA4421E
SCIA4422E
SCIA4423E
CVT FLUID
CVT-19
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CVT FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.
3. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
Spray Transmission Cooler Cleaner only with adequate
ventilation.
Avoid contact with eyes and skin.
Do not breath vapors or spray mist.
4. Hold the hose and can as high as possible and spray Transmis-
sion Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the
cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.
6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
8. Blow compressed air regulated to 5 to 9 kg/cm2 (70 to 130 psi)
through the cooler outlet hose to force any remaining CVT fluid
into the coffee filter.
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform CVT-20, "CVT FLUID COOLER INSPECTION PROCE-
DURE" .
SCIA4421E
SCIA4424E
SCIA4425E
CVT-20
CVT FLUID
Revision: June 2006 2007 Versa
CVT FLUID COOLER INSPECTION PROCEDURE
1. Inspect the coffee filter for debris.
a. If small metal debris less than 1 mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the CVT fluid cooler/radiator can be re-used and
the procedure is ended.
b. If one or more pieces of debris are found that are over 1 mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the fluid cooler is not serviceable. The radiator/
fluid cooler must be replaced and the inspection procedure is
ended.
CVT FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA2967E
SCIA7031E
CVT SYSTEM
CVT-21
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CVT SYSTEM PFP:31036
Cross-sectional View - RE0F08A UCS005XQ
1. Converter housing 2. Oil pump 3. Forward clutch
4. Reverse brake 5. Planetary carrier 6. Primary pulley
7. Steel belt 8. Sun gear 9. Side cover
10. Internal gear 11. Secondary pulley 12. Differential case
13. Final gear 14. Idler gear 15. Reduction gear
16. Output gear 17. Parking gear 18. Input shaft
19. Torque converter
SCIA8015E
CVT-22
CVT SYSTEM
Revision: June 2006 2007 Versa
Control System UCS005XR
SCIA7953E
CVT SYSTEM
CVT-23
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CVT
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Hydraulic Control System UCS005XS
SCIA1807E
CVT-24
CVT SYSTEM
Revision: June 2006 2007 Versa
TCM Function UCS005XT
The function of the TCM is to:
Receive input signals sent from various switches and sensors.
Determine required line pressure, shifting point, and lock-up operation.
Send required output signals to the step motor and the respective solenoids.
CONTROL SYSTEM OUTLINE
The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift
position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNAL) TCM ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Engine speed signal
CVT fluid temperature sensor
Vehicle speed signal
Overdrive control signal
Stop lamp switch signal
Primary speed sensor
Secondary speed sensor
Primary pressure sensor
Secondary pressure sensor
Shift control
Line pressure control
Primary pressure control
Secondary pressure control
Lock-up control
Engine brake control
Vehicle speed control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
Duet-EA control
CAN system
On board diagnosis
Step motor
Torque converter clutch solenoid
valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid
valve
Shift position indicator
O/D OFF indicator lamp
Starter relay
SCIA7933E
CVT SYSTEM
CVT-25
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CVT
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CAN Communication UCS005XU
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. For details, refer to LAN-47,
"CAN System Specification Chart" .
Input/Output Signal of TCM UCS005XV
*1: Input by CAN communications.
*2: Output by CAN communications.
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
Control item
Fluid
pressure
control
Select con-
trol
Shift con-
trol
Lock-up
control
CAN com-
munication
control
Fail-safe
function
(*3)
Input
PNP switch XXXXXX
Accelerator pedal position signal (*1) XXXXXX
Closed throttle position signal(*1) X XXX
Engine speed signal(*1) XX XXX
CVT fluid temperature sensor X X X X X
Stop lamp switch signal(*1) X XXX
Overdrive control signal(*1) XX
Primary speed sensor X XXXX
Secondary speed sensor XXXXXX
Primary pressure sensor X X
Secondary pressure sensor X X X
TCM power supply voltage signal XXXXXX
Out-
put
Step motor X X
TCC solenoid valve X X X
Lock-up select solenoid valve X X X
Line pressure solenoid valve X X X X
Secondary pressure solenoid valve X X X
O/D OFF indicator signal(*2) XX
CVT-26
CVT SYSTEM
Revision: June 2006 2007 Versa
Line Pressure and Secondary Pressure Control UCS005XW
When an input torque signal equivalent to the engine drive force is sent from the ECM to the TCM, the
TCM controls the line pressure solenoid valve and secondary pressure solenoid valve.
This line pressure solenoid controls the pressure regulator valve as the signal pressure and adjusts the
pressure of the operating oil discharged from the oil pump to the line pressure most appropriate to the
driving state. Secondary pressure is controlled by decreasing line pressure.
NORMAL CONTROL
Optimize the line pressure and secondary pressure, depending on driving conditions, on the basis of the throt-
tle position, the engine speed, the primary pulley (input) revolution speed, the secondary pulley (output) revo-
lution speed, the brake signal, the PNP switch signal, the lock-up signal, the voltage, the target gear ratio, the
fluid temperature, and the fluid pressure.
FEEDBACK CONTROL
When controlling the normal fluid pressure or the selected fluid pressure, the secondary pressure can be set
more accurately by using the fluid pressure sensor to detect the secondary pressure and controlling the feed-
back.
Shift Control UCS005XX
In order to select the gear ratio which can obtain the driving force in accordance with driver's intention and the
vehicle condition, TCM monitors the driving conditions, such as the vehicle speed and the throttle position and
selects the optimum gear ratio, and determines the gear change steps to the gear ratio. Then send the com-
mand to the step motor, and control the flow-in/flow-out of line pressure from the primary pulley to determine
the position of the moving-pulley and control the gear ratio.
SCIA1846E
SCIA7958E
CVT SYSTEM
CVT-27
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CVT
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NOTE:
The gear ratio is set for every position separately.
“D” POSITION
Shifting over all the ranges of gear ratios from the lowest to the high-
est.
OVERDRIVE-OFF MODE
Use this position for the improved engine braking.
“L” POSITION
By limiting the gear range to the lowest position, the strong driving
force and the engine brake can be secured.
DOWNHILL ENGINE BRAKE CONTROL (AUTO ENGINE BRAKE CONTROL)
When downhill is detected with the accelerator pedal released, the engine brake will be strengthened up by
downshifting so as not to accelerate the vehicle more than necessary.
ACCELERATION CONTROL
According to vehicle speed and a change of accelerator pedal angle, driver's request for acceleration and driv-
ing scene are judged. This function assists improvement in acceleration feeling by making the engine speed
proportionate to the vehicle speed. And a shift map which can gain a larger driving force is available for com-
patibility of mileage with driveability.
SCIA1953E
SCIA1955E
CVT-28
CVT SYSTEM
Revision: June 2006 2007 Versa
Lock-up and Select Control UCS005XY
The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid
valve, which is controlled by a signal from TCM. The torque converter clutch control valve engages or
releases the torque converter clutch piston.
When shifting between “N” (“P”) “D” (“R”), torque converter clutch solenoid controls engagement power
of forward clutch and reverse brake.
The lock-up applied gear range was expanded by locking up the
torque converter at a lower vehicle speed than conventional
CVT models.
TORQUE CONVERTER CLUTCH AND SELECT CONTROL VALVE CONTROL
Lock-up and Select Control System Diagram
Lock-up Released
In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.
Lock-up Applied
In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the torque
converter clutch solenoid and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.
Select Control
When shifting between “N” (“P”)D” (“R”), optimize the operating pressure on the basis of the throttle posi-
tion, the engine speed, and the secondary pulley (output) revolution speed to lessen the shift shock.
SCIA1958E
SCIA2374E
CVT SYSTEM
CVT-29
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Control Valve UCS005XZ
FUNCTION OF CONTROL VALVE
Name Function
Torque converter regulator valve Optimizes the supply pressure for the torque converter depending on driving conditions.
Pressure regulator valve Optimizes the discharge pressure from the oil pump depending on driving conditions.
TCC control valve Activates or deactivate the lock-up.
Lock-up smoothly by opening lock-up operation excessively.
TCC solenoid valve Controls the TCC control valve or select control valve.
Shift control valve Controls flow-in/out of line pressure from the primary pulley depending on the stroke dif-
ference between the stepping motor and the primary pulley.
Secondary valve Controls the line pressure from the secondary pulley depending on operating condi-
tions.
Clutch regulator valve Adjusts the clutch operating pressure depending on operating conditions.
Secondary pressure solenoid valve Controls the secondary valve.
Line pressure solenoid valve Controls the line pressure control valve.
Step motor Controls the pulley ratio.
Manual valve Transmits the clutch operating pressure to each circuit in accordance with the selected
position.
Select control valve Engages forward clutch, reverse brake smoothly depending on select operation.
Select switch valve Switches torque converter clutch solenoid valve control pressure use to torque con-
verter clutch control valve or select control valve.
Lock-up select solenoid valve Controls the select switch valve.
CVT-30
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: June 2006 2007 Versa
ON BOARD DIAGNOSTIC (OBD) SYSTEM PFP:00028
Introduction UCS005Y0
The CVT system has two self-diagnostic systems.
The first is the emission-related on board diagnostic system (OBD-II) performed by the TCM in combination
with the ECM. The malfunction is indicated by the MIL (malfunction indicator lamp) and is stored as a DTC in
the ECM memory, and the TCM memory.
The second is the TCM original self-diagnosis performed by the TCM. The malfunction is stored in the TCM
memory. The detected items are overlapped with OBD-II self-diagnostic items. For detail, refer to CVT-61,
"Display Items List" .
OBD-II Function for CVT System UCS005Y1
The ECM provides emission-related on board diagnostic (OBD-II) functions for the CVT system. One function
is to receive a signal from the TCM used with OBD-related parts of the CVT system. The signal is sent to the
ECM when a malfunction occurs in the corresponding OBD-related part. The other function is to indicate a
diagnostic result by means of the MIL (malfunction indicator lamp) on the instrument panel. Sensors, switches
and solenoid valves are used as sensing elements.
The MIL automatically illuminates in One or Two Trip Detection Logic when a malfunction is sensed in relation
to CVT system parts.
One or Two Trip Detection Logic of OBD-II UCS005Y2
ONE TRIP DETECTION LOGIC
If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored in
the ECM memory as a DTC. The TCM is not provided with such a memory function.
TWO TRIP DETECTION LOGIC
When a malfunction is sensed during the first test drive, it is stored in the ECM memory as a 1st trip DTC
(diagnostic trouble code) or 1st trip freeze frame data. At this point, the MIL will not illuminate. — 1st trip
If the same malfunction as that experienced during the first test drive is sensed during the second test drive,
the MIL will illuminate. — 2nd trip
The “trip” in theOne or Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation.
OBD-II Diagnostic Trouble Code (DTC) UCS005Y3
HOW TO READ DTC AND 1ST TRIP DTC
DTC and 1st trip DTC can be read by the following methods.
( with CONSULT-II or GST) CONSULT-II or GST (Generic Scan Tool) Examples: P0705, P0720 etc.
These DTC are prescribed by SAE J2012.
(CONSULT-II also displays the malfunctioning component or system.)
1st trip DTC No. is the same as DTC No.
Output of the diagnostic trouble code indicates that the indicated circuit has a malfunction. How-
ever, in case of the Mode II and GST, they do not indicate whether the malfunction is still occurring
or occurred in the past and returned to normal.
CONSULT-II can identify them as shown below, therefore, CONSULT-II (if available) is recom-
mended.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown
on the next page. DTC or 1st trip DTC of a malfunction is displayed
in SELF-DIAGNOSTIC RESULTS mode for “ENGINE” with CON-
SULT-II. Time data indicates how many times the vehicle was driven
after the last detection of a DTC.
BCIA0030E
ON BOARD DIAGNOSTIC (OBD) SYSTEM
CVT-31
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If the DTC is being detected currently, the time data will be “0”.
If a 1st trip DTC is stored in the ECM, the time data will be “1t”.
Freeze Frame Data and 1st Trip Freeze Frame Data
The ECM has a memory function, which stores the driving condition such as fuel system status, calculated
load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle
speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data,
and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II
or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, refer to EC-113, "CONSULT-II Function (ENGINE)" .
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data, and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
Both 1st trip freeze frame data and freeze frame data (along with the DTC) are cleared when the ECM mem-
ory is erased.
HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as
described following.
If the battery cable is disconnected, the diagnostic trouble code will be lost within 24 hours.
When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to OBD-II. For details, refer to EC-48, "Emission-related Diagnostic Information" .
Diagnostic trouble codes (DTC)
1st trip diagnostic trouble codes (1st trip DTC)
Freeze frame data
SAT015K
SAT016K
Priority Items
1Freeze frame data
Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes CVT related items)
3 1st trip freeze frame data
CVT-32
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: June 2006 2007 Versa
1st trip freeze frame data
System readiness test (SRT) codes
Test values
HOW TO ERASE DTC (WITH CONSULT-II)
If a DTC is displayed for both ECM and TCM, it is necessary to be erased for both ECM and TCM.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Turn CONSULT-II ON and touch “TRANSMISSION”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
5. Touch “ENGINE”.
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
HOW TO ERASE DTC (WITH GST)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Select Mode 4 with GST (Generic Scan Tool). For details, refer to EC-126, "Generic Scan Tool (GST)
Function" .
SCIA7508E
ON BOARD DIAGNOSTIC (OBD) SYSTEM
CVT-33
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Malfunction Indicator Lamp (MIL) UCS005Y4
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with-
out the engine running. This is a bulb check.
If the MIL does not light up, refer to DI-24, "WARNING
LAMPS" , or see EC-592, "MIL AND DATA LINK CONNEC-
TOR" .
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
SEF217U
CVT-34
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
TROUBLE DIAGNOSIS PFP:00004
DTC Inspection Priority Chart UCS005Y5
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to CVT-68 .
Fail-safe UCS005Y6
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is an error in a
main electronic control input/output signal circuit.
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the CVT to make driving possible.
Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from the
output speed sensor (secondary speed sensor) to the TCM. The overdrive-off mode is inhibited, and the tran-
saxle is put in “D”.
Input Speed Sensor (Primary Speed Sensor)
The shift pattern is changed in accordance with throttle position and secondary speed (vehicle speed) when
an unexpected signal is sent from the input speed sensor (primary speed sensor) to the TCM. The sport mode
is inhibited, and the transaxle is put in “D”.
PNP Switch
If an unexpected signal is sent from the PNP switch to the TCM, the transaxle is put in “D”.
CVT Fluid Temperature Sensor
If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use before
receiving the unexpected signal is maintained or the gear ratio is controlled to keep engine speed under 3500
rpm.
Transmission Fluid Pressure Sensor A (Secondary Pressure Sensor)
If an unexpected signal is sent from the transmission fluid pressure sensor A (secondary pressure sensor)
to the TCM, the secondary pressure feedback control is stopped and the offset value obtained before the
non-standard condition occurs is used to control line pressure.
If transmission fluid pressure sensor A (secondary pressure sensor) error signal is input to TCM, second-
ary pressure feedback control stops, but line pressure is controlled normally.
Pressure Control Solenoid A (Line Pressure Solenoid)
If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid A (line pressure
solenoid) is turned OFF to achieve the maximum fluid pressure.
Pressure Control Solenoid B (Secondary Pressure Solenoid)
If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid B (secondary pres-
sure solenoid) is turned OFF to achieve the maximum fluid pressure.
Torque Converter Clutch Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the torque converter clutch solenoid is turned
OFF to cancel the lock-up.
Step Motor
If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” are
all turned OFF to hold the gear ratio used right before the non-standard condition occurred.
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above
TROUBLE DIAGNOSIS
CVT-35
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CVT Lock-up Select Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the CVT lock-up select solenoid is turned OFF to
cancel the lock-up.
TCM Power Supply (Memory Back-up)
Transaxle assembly is protected by limiting the engine torque when the memory back-up power supply (for
controlling) from the battery is not supplied to TCM. Normal statues is restored when turning the ignition switch
OFF to ON after the normal power supply.
How to Perform Trouble Diagnosis for Quick and Accurate Repair UCS005Y7
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, PNP switch and provides shift control or lock-up
control via CVT solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
CVT system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the CVT system. The CVT system must be in good
operating condition and be free of valve seizure, solenoid valve mal-
function, etc.
It is much more difficult to diagnose an error that occurs intermit-
tently rather than continuously. Most intermittent errors are caused
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-II (or GST) or a circuit tester connected should be
performed. Follow the CVT-36, "WORK FLOW" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” as
shown on the example (Refer to CVT-37 ) should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SAT631IB
SAT632I
SEF234G
CVT-36
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
WORK FLOW
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Make good use of the two sheets provided, CVT-37, "Information From Customer" and CVT-37, "Diagnostic
Worksheet Chart" , to perform the best troubleshooting possible.
Work Flow Chart
*1. CVT-37 *2. CVT-37 *3. CVT-34
*4. CVT-43 *5. CVT-43, CVT-45 *6. CVT-46
*7. CVT-57 *8. CVT-30 *9. CVT-34
*10. CVT-68 *11. CVT-168 *12. CVT-176
*13. CVT-31 *14. CVT-68 *15. CVT-168
*16. EC-48
SCIA6877E
TROUBLE DIAGNOSIS
CVT-37
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DIAGNOSTIC WORKSHEET
Information From Customer
KEY POINTS
WHAT..... Vehicle & CVT model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Diagnostic Worksheet Chart
Customer name MR/MS Model & Year VIN
Trans. Model Engine Mileage
malfunction Date Manuf. Date In Service Date
Frequency Continuous Intermittent ( times a day)
Symptoms Vehicle does not move. ( Any position Particular position)
No shift
Lock-up malfunction
Shift shock or slip ( N D N R Lock-up Any drive position)
Noise or vibration
No pattern select
Others
()
Malfunction indicator lamp (MIL) Continuously lit Not lit
1 Read the item on cautions concerning fail-safe and understand the customer's complaint. CVT-34
2
CVT fluid inspection
CVT-43
Leak (Repair leak location.)
State
Amount
3
Stall test and line pressure test
CVT-43,
CVT-45
Stall test
Torque converter one-way clutch
Reverse brake
Forward clutch
Steel belt
Engine
Line pressure low
Primary pulley
Secondary pulley
Line pressure inspection - Suspected part:
CVT-38
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
4
Perform road test. CVT-46
4-1.
Check before engine is started CVT-49
CVT-180, "O/D OFF Indicator Lamp Does Not Come On"
Perform self-diagnosis. Enter checks for detected items. CVT-60
CVT-68, "DTC U1000 CAN COMMUNICATION LINE"
CVT-72, "DTC P0615 START SIGNAL CIRCUIT"
CVT-76, "DTC P0703 STOP LAMP SWITCH CIRCUIT"
CVT-78, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
CVT-85, "DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT"
CVT-90, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)"
CVT-95, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED
SENSOR)"
CVT-101, "DTC P0725 ENGINE SPEED SIGNAL"
CVT-103, "DTC P0730 BELT DAMAGE"
CVT-105, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
CVT-110, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
CVT-113, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
CVT-118, "DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE
(LINE PRESSURE SOLENOID VALVE)"
CVT-121, "DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE
(SEC PRESSURE SOLENOID VALVE)"
CVT-124, "DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC
PRESSURE SOLENOID VALVE)"
CVT-129, "DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT
(SEC PRESSURE SENSOR)"
CVT-134, "DTC P0841 PRESSURE SENSOR FUNCTION"
CVT-137, "DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT
(PRI PRESSURE SENSOR)"
CVT-142, "DTC P0868 SECONDARY PRESSURE DOWN"
CVT-145, "DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)"
CVT-150, "DTC P1705 THROTTLE POSITION SENSOR"
CVT-152, "DTC P1722 ESTM VEHICLE SPEED SIGNAL"
CVT-154, "DTC P1723 CVT SPEED SENSOR FUNCTION"
CVT-156, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM"
CVT-158, "DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT"
CVT-164, "DTC P1777 STEP MOTOR - CIRCUIT"
CVT-168, "DTC P1778 STEP MOTOR - FUNCTION"
4-2.
Check at idle CVT-49
CVT-181, "Engine Cannot Be Started in “P” and “N Position"
CVT-182, "In “P” Position, Vehicle Moves Forward or Backward When Pushed"
CVT-182, "In “N” Position, Vehicle Moves"
CVT-183, "Large Shock “N” “R” Position"
CVT-184, "Vehicle Does Not Creep Backward in “R Position"
CVT-185, "Vehicle Does Not Creep Forward in “D” or “L” Position"
TROUBLE DIAGNOSIS
CVT-39
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44-3.
Cruise test CVT-50
CVT-186, "Vehicle Speed Does Not Change in L Position"
CVT-187, "Vehicle Speed Does Not Change in overdrive-off mode"
CVT-188, "Vehicle Speed Does Not Change in D Position"
CVT-189, "Vehicle Does Not Decelerate by Engine Brake"
perform self-diagnosis. Enter checks for detected items. CVT-60
CVT-68, "DTC U1000 CAN COMMUNICATION LINE"
CVT-72, "DTC P0615 START SIGNAL CIRCUIT"
CVT-76, "DTC P0703 STOP LAMP SWITCH CIRCUIT"
CVT-78, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
CVT-85, "DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT"
CVT-90, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)"
CVT-95, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED
SENSOR)"
CVT-101, "DTC P0725 ENGINE SPEED SIGNAL"
CVT-103, "DTC P0730 BELT DAMAGE"
CVT-105, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
CVT-110, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
CVT-113, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
CVT-118, "DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE
(LINE PRESSURE SOLENOID VALVE)"
CVT-121, "DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE
(SEC PRESSURE SOLENOID VALVE)"
CVT-124, "DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC
PRESSURE SOLENOID VALVE)"
CVT-129, "DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT
(SEC PRESSURE SENSOR)"
CVT-134, "DTC P0841 PRESSURE SENSOR FUNCTION"
CVT-137, "DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT
(PRI PRESSURE SENSOR)"
CVT-142, "DTC P0868 SECONDARY PRESSURE DOWN"
CVT-145, "DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)"
CVT-150, "DTC P1705 THROTTLE POSITION SENSOR"
CVT-152, "DTC P1722 ESTM VEHICLE SPEED SIGNAL"
CVT-154, "DTC P1723 CVT SPEED SENSOR FUNCTION"
CVT-156, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM"
CVT-158, "DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT"
CVT-164, "DTC P1777 STEP MOTOR - CIRCUIT"
CVT-168, "DTC P1778 STEP MOTOR - FUNCTION"
5 Inspect each system for items found to be NG in the self-diagnosis and repair or replace the malfunctioning parts.
6 Perform all road tests and enter the checks again for the required items. CVT-46
7 For any remaining NG items, perform the “diagnosis procedure” and repair or replace the malfunctioning parts.
8 Erase the results of the self-diagnosis from the TCM. CVT-32,
CVT-32
CVT-40
TROUBLE DIAGNOSIS
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CVT Electrical Parts Location UCS005Y9
BCIA0033E
TROUBLE DIAGNOSIS
CVT-41
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1. O/D OFF indicator lamp 2. Shift position indicator 3. Accelerator pedal position sensor
4. CVT unit harness connector 5. Hood release 6. TCM
7. Overdrive control switch
CVT-42
TROUBLE DIAGNOSIS
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Circuit Diagram UCS005YA
BCWA0667E
TROUBLE DIAGNOSIS
CVT-43
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Inspections before Trouble Diagnosis UCS005YB
CVT FLUID CHECK
Fluid Leakage and Fluid Level Check
Inspect for fluid leakage and check the fluid level. Refer to CVT-16, "Checking CVT Fluid" .
Fluid Condition Check
Inspect the fluid condition.
STALL TEST
Stall Test Procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the
CVT fluid temperature is 50 to 80°C (122 to 176°F). Inspect the
amount of CVT fluid. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Install a tachometer where it can be seen by driver during test.
It is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in “D”
position.
Fluid status Conceivable cause Required operation
Varnished (viscous
varnish state)
Clutch, brake
scorched
Replace the CVT fluid and check
the CVT main unit and the vehicle
for malfunctions (wire harnesses,
cooler pipes, etc.)
Milky white or
cloudy Water in the fluid Replace the CVT fluid and check for
places where water is getting in.
Large amount of
metal powder mixed
in
Unusual wear of
sliding parts within
CVT
Replace the CVT fluid and check for
improper operation of the CVT.
SAT638A
SAT647B
SAT513G
SAT775B
CVT-44
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
6. While holding down the foot brake, gradually press down the
accelerator pedal.
7. Quickly read off the stall speed, and then quickly remove your
foot from the accelerator pedal.
CAUTION:
Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.
8. Move the selector lever to the “N” position.
9. Cool down the CVT fluid.
CAUTION:
Run the engine at idle for at least 1 minute.
10. Repeat steps 6 through 9 with selector lever in “R” position.
Judgement Stall Test
O: Stall speed within standard value position.
H: Stall speed is higher than standard value.
L: Stall speed is lower than standard value.
Stall speed: 2,600 - 3,150 rpm
SAT514G
SAT771B
Selector lever position Expected problem location
“D” “R
Stall rotation
HO
Forward clutch
OH
Reverse brake
LL
Engine and torque converter one-way clutch
HH
Line pressure low
Primary pulley
Secondary pulley
Steel belt
TROUBLE DIAGNOSIS
CVT-45
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LINE PRESSURE TEST
Line Pressure Test Port
Line Pressure Test Procedure
1. Inspect the amount of engine oil and replenish if necessary.
2. Drive the car for about 10 minutes to warm it up so that the CVT fluid reaches in the range of 50 to 80°C
(122 to 176°F), then inspect the amount of CVT fluid and replenish if necessary.
NOTE:
The CVT fluid temperature rises in the range of 50 - 80°C (122 - 176°F) during 10 minutes of driving.
3. After warming up CVT, remove the oil pressure detection plug and install the oil pressure gauge [special
service tool: - (OTC3492)].
CAUTION:
When using the oil pressure gauge, be sure to use the O-ring attached to the oil pressure detec-
tion plug.
4. Securely engage the parking brake so that the tires do not turn.
5. Start the engine, and then measure the line pressure at both idle
and the stall speed.
CAUTION:
Keep the brake pedal pressed all the way down during
measurement.
When measuring the line pressure at the stall speed,
refer to CVT-43, "STALL TEST" .
6. After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque below.
CAUTION:
Do not reuse O-ring.
Apply CVT fluid to O-ring.
SCIA6184E
SAT513G
: 7.5 N·m (0.77 kg-m, 66 in-lb) SAT493G
CVT-46
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
Line Pressure
*: Reference values
Judgement of Line Pressure Test
Road Test UCS005YC
DESCRIPTION
The purpose of the test is to determine overall performance of
CVT and analyze causes of problems.
The road test consists of the following three parts:
1. “Check Before Engine Is Started” CVT-49 .
2. “Check at Idle” CVT-49 .
3. “Cruise TestCVT-50 .
Engine speed Line pressure kPa (kg/cm2 , psi)
R”, “D” and “L” positions
At idle 650 (6.63, 94.3)
At stall 4,250 (43.35, 616.3)*
Judgement Possible cause
Idle speed
Low for all positions
(“P”, “R”, “N”, “D”, “L”)
Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example
Oil pump wear
Pressure regulator valve or plug sticking or spring fatigue
Oil strainer oil pump pressure regulator valve passage oil leak
Engine idle speed too low
Only low for a specific
position Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
High
Possible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example
Accelerator pedal position signal malfunction
CVT fluid temperature sensor malfunction
Pressure control solenoid A (line pressure solenoid) malfunction (sticking in OFF state, filter
clog, cut line)
Pressure regulator valve or plug sticking
Stall speed
Line pressure does
not rise higher than
the line pressure for
idle.
Possible causes include a sensor malfunction or malfunction in the pressure adjustment func-
tion.
For example
Accelerator pedal position signal malfunction
TCM malfunction
Pressure control solenoid A (line pressure solenoid) malfunction (shorting, sticking in ON
state)
Pressure regulator valve or plug sticking
The pressure rises,
but does not enter the
standard position.
Possible causes include malfunctions in the pressure supply system and malfunction in the
pressure adjustment function.
For example
Accelerator pedal position signal malfunction
Pressure control solenoid A (line pressure solenoid) malfunction (sticking, filter clog)
Pressure regulator valve or plug sticking
Only low for a specific
position
Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
SAT786A
TROUBLE DIAGNOSIS
CVT-47
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CVT
Revision: June 2006 2007 Versa
Before road test, familiarize yourself with all test procedures and
items to check.
Perform tests on all items until specified symptom is found.
Troubleshoot items which check out No Good after road test.
CONSULT-II OPERATION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
Using CONSULT-II, perform a cruise test and record the result.
Print the result and ensure that shifts and lock-ups take place as per Shift Schedule.
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch “MAIN SIGNALS” to set recording condition.
3. SeeNumerical Display”, “Barchart Display” or “Line Graph Dis-
play”.
4. Touch “START”.
5. When performing cruise test. Refer to CVT-50, "Cruise Test" .
6. After finishing cruise test part, touch “RECORD”.
SAT496G
BCIA0031E
SCIA5493E
SCIA4584E
CVT-48
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
7. Touch “STORE”.
8. Touch “BACK”.
9. Touch “DISPLAY”.
10. Touch “PRINT”.
11. Check the monitor data printed out.
SCIA4492E
SCIA4493E
SCIA4492E
SCIA4494E
TROUBLE DIAGNOSIS
CVT-49
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CVT
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Check before Engine Is Started UCS005YD
1. CHECK O/D OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does O/D OFF indicator lamp come on for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and note NG items.
Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
3. Go to CVT-49, "Check at Idle" .
NO >> Stop “Road Test”. Go to CVT-180, "O/D OFF Indicator Lamp Does Not Come On" .
Check at Idle UCS005YE
1. CHECK STARTING THE ENGINE
1. Park vehicle on flat surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Turn ignition switch START.
Is engine started?
YES >> GO TO 2.
NO >> Stop “Road Test”. Mark the box on the CVT-37, "DIAGNOSTIC WORKSHEET" . Go to CVT-181,
"Engine Cannot Be Started in “P” and N” Position" .
2. CHECK STARTING THE ENGINE
1. Turn ignition switch ON.
2. Move selector lever to “D”,L” or “R” position.
3. Turn ignition switch START.
Is engine started?
YES >> Stop “Road Test”. Mark the box on the CVT-37, "DIAGNOSTIC WORKSHEET" . Go to CVT-181,
"Engine Cannot Be Started in “P” and N” Position" .
NO >> GO TO 3.
3. CHECK “P” POSITION FUNCTION
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
5. Apply parking brake.
Does vehicle move when it is pushed forward or backward?
YES >> Mark the box CVT-182, "In P” Position, Vehicle Moves Forward or Backward When Pushed" on
the CVT-37, "DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
NO >> GO TO 4.
CVT-50
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
4. CHECK “N” POSITION FUNCTION
1. Start engine.
2. Move selector lever to “N” position.
3. Release parking brake.
Does vehicle move forward or backward?
YES >> Mark the box CVT-182, "In “N Position, Vehicle Moves" on the CVT-37, "DIAGNOSTIC WORK-
SHEET" . Continue “Road Test”.
NO >> GO TO 5.
5. CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to “R” position.
Is there large shock when changing from “N” to “R” position?
YES >> Mark the box CVT-183, "Large Shock “N” “R” Position" on the CVT-37, "DIAGNOSTIC WORK-
SHEET" . Continue “Road Test”.
NO >> GO TO 6.
6. CHECK “R” POSITION FUNCTION
Release foot brake for several seconds.
Does vehicle creep backward when foot brake is released?
YES >> GO TO 7.
NO >> Mark the box CVT-184, "Vehicle Does Not Creep Backward in “R” Position" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
7. CHECK “D”, “L” POSITIONS FUNCTION
Move selector lever to “D” and “L” positions and check if vehicle creeps forward.
Does vehicle creep forward in all positions?
YES >> Go to CVT-50, "Cruise Test" .
NO >> Stop “Road Test”. Mark the box on the CVT-37, "DIAGNOSTIC WORKSHEET" . Go to CVT-185,
"Vehicle Does Not Creep Forward in “D or “L” Position" .
Cruise Test UCS005YF
1. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 1
1. Drive vehicle for approximately 10 minutes to warm engine oil and CVT fluid up to operating temperature.
2. Park vehicle on flat surface.
3. Move selector lever to “P” position.
4. Start engine.
5. Move selector lever to “L” position.
6. Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 2.
NG >> Mark the box of CVT-186, "Vehicle Speed Does Not
Change in “L” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
CVT fluid operating temperature: 50 - 80°C (122 - 176°F)
SCIA6644E
TROUBLE DIAGNOSIS
CVT-51
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CVT
Revision: June 2006 2007 Versa
2. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 2
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is on.)
4. Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 3.
NG >> Mark the box of CVT-187, "Vehicle Speed Does Not
Change in overdrive-off mode" on the CVT-37, "DIAG-
NOSTIC WORKSHEET" . Continue “Road Test”.
3. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 3
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is off.)
4. Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 4.
NG >> Mark the box of CVT-188, "Vehicle Speed Does Not
Change in “D Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
4. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 4
1. Park vehicle on flat surface.
2. Move selector lever to “L” position.
3. Accelerate vehicle to full depression depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 5.
NG >> Mark the box of CVT-186, "Vehicle Speed Does Not
Change in “L” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
SCIA6644E
SCIA6644E
SCIA4366E
CVT-52
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
5. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 5
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is on.)
4. Accelerate vehicle to full depressing depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 6.
NG >> Mark the box of CVT-187, "Vehicle Speed Does Not
Change in overdrive-off mode" on the CVT-37, "DIAG-
NOSTIC WORKSHEET" . Continue “Road Test”.
6. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 6
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is off.)
4. Accelerate vehicle to full depression depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 7.
NG >> Mark the box of CVT-188, "Vehicle Speed Does Not
Change in “D” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
7. CHECK ENGINE BRAKE FUNCTION — PART 1
1. Release accelerator pedal.
2. Check engine brake. (O/D OFF indicator lamp is off.)
Does engine braking effectively reduce speed in “D” position?
YES >> GO TO 8.
NO >> Mark the box of CVT-189, "Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
8. CHECK ENGINE BRAKE FUNCTION — PART 2
1. Push overdrive control switch. (O/D OFF indicator lamp is on.)
2. Check engine brake.
Does engine braking effectively reduce speed in “D” position?
YES >> GO TO 9.
NO >> Mark the box of CVT-189, "Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
SCIA4366E
SCIA4366E
TROUBLE DIAGNOSIS
CVT-53
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CVT
Revision: June 2006 2007 Versa
9. CHECK ENGINE BRAKE FUNCTION — PART 3
1. Move selector lever to “L” position.
2. Check engine brake.
Does engine braking effectively reduce speed in “L” position?
YES >> 1. Stop the vehicle.
2. Perform self-diagnosis. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
NO >> Mark the box of CVT-189, "Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Then continue trouble diagnosis.
Vehicle Speed When Shifting Gears UCS005YG
Numerical value data are reference values.
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).
Engine type Throttle position Shift pattern Engine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
MR18DE
8/8
“D position
Overdrive-off mode
“L position 3,600 - 4,400 4,400 - 5,200
2/8
“D” position 1,400 - 2,400 1,500 - 2,500
Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,200 - 4,000 3,900 - 4,700
CVT-54
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
TCM Input/Output Signal Reference Values UCS005YH
TCM TERMINAL CONNECTOR LAYOUT
TCM INSPECTION TABLE
Data are reference values and are measured between each terminal and ground.
SCIA0495E
Terminal Wire
color Item Condition Data (Approx.)
1GR
Pressure con-
trol solenoid
valve A (Line
pressure sole-
noid valve) and
Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 1.0 - 3.0 V
2LG
Pressure con-
trol solenoid
valve B (Sec-
ondary pressure
solenoid valve)
Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 3.0 - 4.0 V
3SB
Torque con-
verter clutch
solenoid valve
When vehi-
cle cruises in
“D position.
When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.0 V
4BR
Lock-up select
solenoid valve
Selector lever in “P” and “N” positions Battery voltage
Wait at least for 5 seconds with the selector lever in
“R”, “D” and “L” positions 0 V
5 L CAN-H
6 P CAN-L
8V
Back-up lamp
relay
Selector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
10 R Power supply
—Battery voltage
—0 V
11 L Step motor A Within 2 seconds after ignition switch ON, the time measurement by using
the pulse width measurement function (Hi level) of CONSULT-II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis connec-
tor.
*1: A circuit tester cannot be used to test this item.
30.0 msec
12 Y Step motor B 10.0 msec
13 G ROM assembly
14 Y ROM assembly
15 G ROM assembly
TROUBLE DIAGNOSIS
CVT-55
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19 R Power supply
Battery voltage
—0 V
20 W Step motor C Within 2 seconds after ignition switch ON, the time measurement by using
the pulse width measurement function (Hi level) of CONSULT-II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis connec-
tor.
*1: A circuit tester cannot be used to test this item.
30.0 msec
21 P Step motor D 10.0 msec
24 BR Starter relay
Selector lever in “N” and “P”positions. Battery voltage
Selector lever in other positions. 0 V
25 B Ground Always 0 V
27 GR PNP switch 1
Selector lever in “R”, “N” and “D” positions. 0 V
Selector lever in “P” and “L” positions. Battery voltage
28 Y
Power supply
(memory back-
up)
Always Battery voltage
29 R
Output speed
sensor (Second-
ary speed sen-
sor)
When driving [“D” position, 20 km/h (12 MPH)]. 570 Hz
31 LG K-LINE
32 Y PNP switch 3
(monitor)
Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions. 8.0 V - Battery
voltage
34 SB PNP switch 2
Selector lever in “N”, “D” and “L” positions. 0 V
Selector lever in “P” and “R” positions. 10.0 V - Battery
voltage
35 W PNP switch 3
Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions. 8.0 V - Battery
voltage
36 W PNP switch 4
Selector lever in “R” and “D” positions. 0 V
Selector lever in “P”, “N” and “L” positions. 10.0 V - Battery
voltage
37 L
Transmission
fluid pressure
sensor A (Sec-
ondary pressure
sensor)
and “N” position idle 1.0 V
38 V Input speed sen-
sor (Primary
speed sensor)
When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz
Terminal Wire
color Item Condition Data (Approx.)
CVT-56
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
41 G
Transmission
fluid pressure
sensor B (Pri-
mary pressure
sensor)
and “N” position idle 0.7 V
42 LG Sensor ground Always 0 V
46 O Sensor power
— 5.0 V
— 0 V
47 G CVT fluid tem-
perature sensor
When CVT fluid temperature is 20°C (68°F) 2.0 V
When CVT fluid temperature is 80°C (176°F) 1.0 V
48 B Ground Always 0 V
Terminal Wire
color Item Condition Data (Approx.)
TROUBLE DIAGNOSIS
CVT-57
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CONSULT-II Function (TRANSMISSION) UCS005YI
CONSULT-II can display each diagnostic item using the diagnostic test modes shown below.
FUNCTION
CONSULT-II REFERENCE VALUE
Diagnostic test mode Function Reference page
Work support This mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II. CVT-59
Self-diagnostic results Self-diagnostic results can be read and erased quickly. CVT-60
Data monitor Input/Output data in the TCM can be read. CVT-64
CAN diagnostic support
monitor The results of transmit/receive diagnosis of CAN communication can be read. CVT-66
CALIB data Characteristic information for TCM and CVT assembly can be read.
Function test Performed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.
ECU part number TCM part number can be read.
Item name Condition Display value (Approx.)
VSP SENSOR During driving Approximately matches the speedometer
reading.
ESTM VSP SIG*
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.
ENG SPEED SIG Engine running Closely matches the tachometer reading.
SEC HYDR SEN “N” position idle 1.0 V
PRI HYDR SEN “N” position idle 0.7 V
ATF TEMP SEN When CVT fluid temperature is 20°C (68°F). 2.0 V
When CVT fluid temperature is 80°C (176°F). 1.0 V
VIGN SEN Ignition switch: ON Battery voltage
VEHICLE SPEED During driving Approximately matches the speedometer
reading.
PRI SPEED During driving (lock-up ON) Approximately matches the engine speed.
SEC SPEED During driving 50 X Approximately matches the speed-
ometer reading.
ENG SPEED Engine running Closely matches the tachometer reading.
GEAR RATIO During driving 2.56 - 0.43
ACC PEDAL OPEN Released accelerator pedal - Fully depressed
accelerator pedal 0.0/8 - 8.0/8
SEC PRESS “N” position idle 0.8 MPa
PRI PRESS “N” position idle 0.4 MPa
STM STEP During driving 20 step - 180 step
ISOLT1 Lock-up OFF 0.0 A
Lock-up ON 0.7 A
ISOLT2 Release your foot from the accelerator pedal. 0.8 A
Press the accelerator pedal all the way down. 0.0 A
ISOLT3 Secondary pressure low - Secondary pressure
high. 0.8 - 0.0 A
SOLMON1 Lock-up OFF 0.0 A
Lock-up ON 0.7 A
SOLMON2 “N” position idle 0.8 A
When stalled 0.3 - 0.6 A
CVT-58
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
SOLMON3 “N” position idle 0.6 - 0.7 A
When stalled 0.4 - 0.6 A
INH SW3M Selector lever in “D” and “L” positions ON
Selector lever in “P”, “R” and “N” positions OFF
INH SW4 Selector lever in “R” and “D” positions ON
Selector lever in “P”, “N” and “L” positions OFF
INH SW3 Selector lever in “D” and “L” positions ON
Selector lever in “P”, “R” and “N” positions OFF
INH SW2 Selector lever in “N”, “D” and “L” positions ON
Selector lever in “P” and “R” positions OFF
INH SW1 Selector lever in “R”, “N” and “D” positions ON
Selector lever in “P” and “L” positions OFF
BRAKE SW Depressed brake pedal ON
Released brake pedal OFF
FULL SW Fully depressed accelerator pedal ON
Released accelerator pedal OFF
IDLE SW Released accelerator pedal ON
Fully depressed accelerator pedal OFF
SPORT MODE SW While pushing overdrive cancel switch ON
Other conditions OFF
INDDRNG Selector lever in “D” position ON
Selector lever in other positions OFF
INDLRNG Selector lever in “L” position ON
Selector lever in other positions OFF
INDNRNG Selector lever in “N” position ON
Selector lever in other positions OFF
INDRRNG Selector lever in “R” position ON
Selector lever in other positions OFF
INDPRNG Selector lever in “P” position ON
Selector lever in other positions OFF
SMCOIL D
During driving Changes ON OFF.
SMCOIL C
SMCOIL B
SMCOIL A
LUSEL SOL OUT
Selector lever in “P” and “N” positions ON
Wait at least for 5 seconds with the selector
lever in “R”, “D” and “L” positions OFF
STRTR RLY OUT Selector lever in “P” and “N” positions ON
Selector lever in other positions OFF
STRTR RLY MON Selector lever in “P” and “N” positions ON
Selector lever in other positions OFF
RANGE
Selector lever in “N” or “P” position. N·P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “L” position. L
Item name Condition Display value (Approx.)
TROUBLE DIAGNOSIS
CVT-59
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Revision: June 2006 2007 Versa
*: Models without ABS does not indicate.
CONSULT-II SETTING PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT MODE
Display Item List
Engine Brake Adjustment
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “ENGINE BRAKE ADJ”.
3. Touch “START”.
4. Set “ENGINE BRAKE LEVEL” by touching “UP” or “DOWN”.
5. Turn ignition switch OFF, wait at least 5 seconds and then turn
ignition switch ON.
6. Engine brake level set is completed.
Item name Description
ENGINE BRAKE ADJ. The engine brake level setting can be canceled.
CONFORM CVTF DETERIORTN The CVT fluid deterioration level can be checked.
BCIA0031E
SCIA4287E
SCIA4288E
“ENGINE BRAKE LEVEL”
0: Initial set value (Engine brake level control is
activated)
OFF: Engine brake level control is deactivated.
SAT934J
CVT-60
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
CAUTION:
Mode of “+1” “0” “-1” “-2” “OFF” can be selected by pressing the “UP” “DOWN” on CONSULT-II
screen. However, do not select mode other than “0” and “OFF”. If the “+1” or “-1” or “-2” is
selected, that might cause the irregular driveability.
Check CVT Fluid Deterioration Date
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “CONFORM CVTF DETERIORTN”.
3. Check “CVTF DETERIORATION DATE”.
CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase
“CVTF DETERIORATION DATE”.
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the CVT-37, "DIAGNOSTIC WORKSHEET" .
Reference pages are provided following the items.
BCIA0031E
SCIA4287E
CVTF DETERIORATION DATE”
More than 210000:
It is necessary to change CVT fluid.
Less than 210000:
It is not necessary to change CVT fluid.
SCIA4289E
SCIA4290E
TROUBLE DIAGNOSIS
CVT-61
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CVT
Revision: June 2006 2007 Versa
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”.
Display shows malfunction experienced since the last erasing
operation.
Display Items List X: Applicable —: Not applicable
BCIA0031E
Items (CONSULT-
II screen terms) Malfunction is detected when...
TCM self-
diagnosis OBD-II (DTC)
Reference
page
“TRANS-
MISSION
with CON-
SULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUIT
When TCM is not transmitting or receiving CAN communica-
tion signal for 2 seconds or more U1000 U1000 CVT-68
CONTROL
UNIT(CAN)
When detecting error during the initial diagnosis of CAN con-
troller of TCM U1010 U1010 CVT-71
STARTER RELAY/
CIRC
If this signal is ON other than in “P” or “N” position, this is
judged to be a malfunction
(And if it is OFF in “P” or “N” position, this is judged to be a
malfunction too)
P0615 — CVT-72
BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703 CVT-76
PNP SW/CIRC PNP switch 1-4 signals input with impossible pattern
PNP switch 3 monitor terminal open or short circuit P0705 P0705 CVT-78
ATF TEMP SEN/
CIRC
During running, the CVT fluid temperature sensor signal volt-
age is excessively high or low P0710 P0710 CVT-85
INPUT SPD SEN/
CIRC
Input speed sensor (primary speed sensor) signal is not
input due to an open circuit
An unexpected signal is input when vehicle is being driven
P0715 P0715 CVT-90
VEH SPD SEN/
CIR AT
Signal from vehicle speed sensor CVT [Output speed sen-
sor (Secondary speed sensor)] not input due to open or
short circuit
Unexpected signal input during running
P0720 P0720 CVT-95
ENGINE SPEED
SIG
TCM does not receive the CAN communication signal
from the ECM
Engine speed is too low while driving
P0725 CVT-101
BELT DAMG Unexpected gear ratio detected P0730 CVT-103
TCC SOLENOID/
CIRC Normal voltage not applied to solenoid due to open or short
circuit P0740 P0740 CVT-105
A/T TCC S/V
FNCTN
CVT cannot perform lock-up even if electrical circuit is
good
TCM detects as irregular by comparing difference value
with slip rotation
There is big difference engine speed and primary speed
when TCM lock-up signal is on
P0744 P0744 CVT-110
CVT-62
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
L/PRESS SOL/
CIRC
Normal voltage not applied to solenoid due to open or
short circuit
TCM detects as irregular by comparing target value with
monitor value
P0745 P0745 CVT-113
PRS CNT SOL/A
FCTN Unexpected gear ratio was detected in the LOW side due to
excessively low line pressure P0746 P0746 CVT-118
PRS CNT SOL/B
FCTN
Secondary pressure is too high or too low compared with the
commanded value while driving P0776 P0776 CVT-121
PRS CNT SOL/B
CIRC
Normal voltage not applied to solenoid due to cut line,
short, or the like
TCM detects as irregular by comparing target value with
monitor value
P0778 P0778 CVT-124
TR PRS SENS/A
CIRC
Signal voltage of the transmission fluid pressure sensor A
(secondary pressure sensor) is too high or too low while driv-
ing P0840 P0840 CVT-129
PRESS SEN/
FNCTN
Correlation between the values of the transmission fluid
pressure sensor A (secondary pressure sensor) and the
transmission fluid pressure sensor B (primary pressure sen-
sor) is out of specification
P0841 CVT-134
TR PRS SENS/B
CIRC
Signal voltage of the transmission fluid pressure sensor B
(primary pressure sensor) is too high or too low while driving P0845 P0845 CVT-137
SEC/PRESS
DOWN Secondary fluid pressure is too low compared with the com-
manded value while driving P0868 CVT-142
TCM-POWER
SUPPLY
When the power supply to the TCM is cut OFF, for exam-
ple because the battery is removed, and the self-diagnosis
memory function stops
This is not a malfunction message (Whenever shutting
OFF a power supply to the TCM, this message appears on
the screen)
P1701 CVT-145
TP SEN/CIRC A/T TCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM P1705 CVT-150
ESTM VEH SPD
SIG*2
CAN communication with the ABS actuator and the elec-
tric unit (control unit) is malfunctioning
There is a great difference between the vehicle speed sig-
nal from the ABS actuator and the electric unit (control
unit), and the vehicle speed sensor signal
P1722 CVT-152
CVT SPD SEN/
FNCTN
A rotation sensor error is detected because the gear does
not change in accordance with the position of the stepping
motor
CAUTION:
One of the “P0720 VEH SPD SEN/CIR AT”, the “P0715
INPUT SPD SEN/CIRC” or the “P0725 ENGINE SPEED
SIG“ is displayed with the DTC at the same time
P1723 CVT-154
ELEC TH CON-
TROL
The electronically controlled throttle for ECM is malfunction-
ing P1726 CVT-156
LU-SLCT SOL/
CIRC
Normal voltage not applied to solenoid due to cut line,
short, or the like
TCM detects as irregular by comparing target value with
monitor value
P1740 P1740 CVT-158
Items (CONSULT-
II screen terms) Malfunction is detected when...
TCM self-
diagnosis OBD-II (DTC)
Reference
page
“TRANS-
MISSION
with CON-
SULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
TROUBLE DIAGNOSIS
CVT-63
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*1: Refer to CVT-33, "Malfunction Indicator Lamp (MIL)" .
*2: Models without ABS does not indicate.
How to Erase Self-diagnostic Results
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”.
2. Touch “ERASE”. (The self-diagnostic results will be erased.)
L/PRESS CON-
TROL TCM detects the unexpected line pressure P1745 CVT-163
STEP MOTR
CIRC
Each coil of the step motor is not energized properly due to
an open or a short P1777 P1777 CVT-164
STEP MOTR/FNC There is a great difference between the number of steps for
the stepping motor and for the actual gear ratio P1778 P1778 CVT-168
NO DTC IS
DETECTED: FUR-
THER TESTING
MAY BE
REQUIRED
No NG item has been detected X X
Items (CONSULT-
II screen terms) Malfunction is detected when...
TCM self-
diagnosis OBD-II (DTC)
Reference
page
“TRANS-
MISSION
with CON-
SULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
BCIA0031E
SCIA4614E
CVT-64
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
DATA MONITOR MODE
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE”.
NOTE:
When malfunction is detected, CONSULT-II performs
“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed at real time.
Display Items List
X: Standard, —: Not applicable, : Option
BCIA0031E
Monitored item (Unit)
Monitor item selection
Remarks
ECU
INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION
FROM
MENU
VSP SENSOR (km/h) X Output speed sensor (secondary speed sensor).
ESTM VSP SIG (km/h) X Models without ABS does not indicate.
PRI SPEED SEN (rpm) X
ENG SPEED SIG (rpm) X
SEC HYDR SEN (V) X
PRI HYDR SEN (V) X
ATF TEMP SEN (V) X CVT fluid temperature sensor
VIGN SEN (V) X
VEHICLE SPEED (km/h) X Vehicle speed recognized by the TCM.
PRI SPEED (rpm) X Primary pulley speed.
SEC SPEED (rpm) Secondary pulley speed.
ENG SPEED (rpm) X
SLIP REV (rpm) X Difference between engine speed and primary
pulley speed
GEAR RATIO X
G SPEED (G)
ACC PEDAL OPEN (0.0/8) X X
Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.
TRQ RTO
SEC PRESS (MPa) X
PRI PRESS (MPa) X
ATF TEMP X
DSR REV (rpm)
DGEAR RATIO
TROUBLE DIAGNOSIS
CVT-65
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CVT
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DSTM STEP (step)
STM STEP (step) X
LU PRS (MPa)
LINE PRS (MPa)
TGT SEC PRESS (MPa)
ISOLT1 (A) X Torque converter clutch solenoid valve output
current
ISOLT2 (A) X Pressure control solenoid valve A (line pressure
solenoid valve) output current
ISOLT3 (A) X Pressure control solenoid valve B (secondary
pressure solenoid valve) output current
SOLMON1 (A) X X Torque converter clutch solenoid valve monitor
current
SOLMON2 (A) X X Pressure control solenoid valve A (line pressure
solenoid valve) monitor current
SOLMON3 (A) X X Pressure control solenoid valve B (secondary
pressure solenoid valve) monitor current
INH SW3M (ON/OFF) X PNP switch 3 ON-OFF status monitor
INH SW4 (ON/OFF) X PNP switch 4 ON-OFF status
INH SW3 (ON/OFF) X PNP switch 3 ON-OFF status
INH SW2 (ON/OFF) X PNP switch 2 ON-OFF status
INH SW1 (ON/OFF) X PNP switch 1 ON-OFF status
BRAKE SW (ON/OFF) X X Stop lamp switch (Signal input with CAN comuni-
cation)
FULL SW (ON/OFF) X X Signal input with CAN communications
IDLE SW (ON/OFF) X X
SPORT MODE SW (ON/OFF) X X Overdrive control switch (Signal input with CAN
comunication)
STRDWNSW (ON/OFF) X
Not mounted but displayed.
STRUPSW (ON/OFF) X
DOWNLVR (ON/OFF) X
UPLVR (ON/OFF) X
NONMMODE (ON/OFF) X
MMODE (ON/OFF) X
INDLRNG (ON/OFF) “L” position indicator output
INDDRNG (ON/OFF) “D” position indicator output
INDNRNG (ON/OFF) “N” position indicator output
INDRRNG (ON/OFF) “R” position indicator output
INDPRNG (ON/OFF) “P” position indicator output
Monitored item (Unit)
Monitor item selection
Remarks
ECU
INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION
FROM
MENU
CVT-66
TROUBLE DIAGNOSIS
Revision: June 2006 2007 Versa
CAN DIAGNOSTIC SUPPORT MONITOR MODE
Operation Procedure
1. Touch “CAN DAIG SUPPORT MNTR” on “SELECT DIAG
MODE” screen. Refer to LAN-44, "CAN Diagnostic Support
Monitor" .
CVT LAMP (ON/OFF)
SPORT MODE IND (ON/OFF)
MMODE IND (ON/OFF) Not mounted but displayed.
SMCOIL D (ON/OFF) Step motor coil “D” energizing status
SMCOIL C (ON/OFF) Step motor coil “C” energizing status
SMCOIL B (ON/OFF) Step motor coilB” energizing status
SMCOIL A (ON/OFF) Step motor coilA” energizing status
LUSEL SOL OUT (ON/OFF)
REV LAMP (ON/OFF) X
STRTR RLY OUT (ON/OFF) Starter relay
LUSEL SOL MON (ON/OFF)
STRTR RLY MON (ON/OFF) Starter relay
VDC ON (ON/OFF) X Not mounted but displayed.
TCS ON (ON/OFF) X
ABS ON (ON/OFF) X
ACC ON (ON/OFF) X Not mounted but displayed.
RANGE — X
Indicates position is recognized by TCM. Indi-
cates a specific value required for control when
fail-safe function is activated.
M GEAR POS X
Voltage (V) Displays the value measured by the voltage
probe.
Frequency (Hz)
The value measured by the pulse probe is dis-
played.
DUTY-HI (high) (%)
DUTY-LOW (low) (%)
PLS WIDTH-HI (ms)
PLS WIDTH-LOW (ms)
Monitored item (Unit)
Monitor item selection
Remarks
ECU
INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION
FROM
MENU
BCIA0031E
TROUBLE DIAGNOSIS
CVT-67
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CVT
Revision: June 2006 2007 Versa
Diagnostic Procedure without CONSULT-II UCS005YJ
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-126, "Generic Scan Tool (GST) Function" .
CVT-68
DTC U1000 CAN COMMUNICATION LINE
Revision: June 2006 2007 Versa
DTC U1000 CAN COMMUNICATION LINE PFP:23710
Description UCS005YK
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic UCS005YL
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II is detected when TCM cannot
communicate to other control units.
Possible Cause UCS005YM
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation Procedure UCS005YN
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to CVT-70, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
BCIA0031E
DTC U1000 CAN COMMUNICATION LINE
CVT-69
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Revision: June 2006 2007 Versa
Wiring Diagram — CVT — CAN UCS005YO
BCWA0668E
CVT-70
DTC U1000 CAN COMMUNICATION LINE
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS005YP
1. CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION
with CONSULT-II.
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated?
YES >> Print out CONSULT-II screen, go to LAN section. Refer
to LAN-47, "CAN System Specification Chart" .
NO >> INSPECTION END
Terminal Wire
color Item Condition Data (Approx.)
5 L CAN-H
6 P CAN-L
SCIA5982E
DTC U1010 TRANSMISSION CONTROL MODULE (CAN)
CVT-71
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Revision: June 2006 2007 Versa
DTC U1010 TRANSMISSION CONTROL MODULE (CAN) PFP:31036
Description UCS006KU
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic UCS006KV
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “U1010 CONTROL UNIT(CAN)” with CONSULT-II is detected when TCM cannot
communicate to other control units.
Possible Cause UCS006KW
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation Procedure UCS006KX
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to CVT-71, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Diagnostic Procedure UCS006KY
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch OFF and wait for at least 10 seconds.
5. Perform “DTC confirmation procedure”. Refer to CVT-71, "DTC Confirmation Procedure" .
Is any malfunction of the U1010 CONTROL UNIT(CAN) indicated?
YES >> Replace the TCM. Refer to CVT-190, "Removal and Installation" .
NO >> INSPECTION END
BCIA0031E
CVT-72
DTC P0615 START SIGNAL CIRCUIT
Revision: June 2006 2007 Versa
DTC P0615 START SIGNAL CIRCUIT PFP:25230
Description UCS005YQ
TCM controls starter relay in IPDM E/R.
TCM switches starter relay ON at “P” or “N” position and allows to crank engine.
Then it prohibits cranking other than at “P” or “N” position.
CONSULT-II Reference Value UCS005YR
On Board Diagnosis Logic UCS005YS
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-II is detected when starter relay
switched ON other than at “P” or “N” position. (or when switched OFF at “P” or “N” position).
Possible Cause UCS005YT
Harness or connectors
(Starter relay and TCM circuit is open or shorted.)
Starter relay
DTC Confirmation Procedure UCS005YU
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine.
4. Drive vehicle for at least 2 consecutive seconds.
5. If DTC is detected, go to CVT-74, "Diagnostic Procedure" .
Item name Condition Display value
STRTR RLY OUT Selector lever in “P” and “N” positions ON
Selector lever in other positions OFF
STRTR RLY MON Selector lever in “P” and “N” positions ON
Selector lever in other positions OFF
BCIA0031E
DTC P0615 START SIGNAL CIRCUIT
CVT-73
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Revision: June 2006 2007 Versa
Wiring Diagram — CVT — STSIG UCS005YV
BCWA0669E
CVT-74
DTC P0615 START SIGNAL CIRCUIT
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS005YW
1. CHECK STARTER RELAY SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “TRANSMISSION” with CONSULT-II and check monitor
“STRTR RLY OUT”, “STRTR RLY MON”(PNP relay) ON/OFF.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between the TCM connector terminal and
ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following:
Starter relay. Refer to PG-73, "STANDARDIZED RELAY" .
Open or short-circuit in the harness between TCM and the starter relay. Refer to CVT-73, "Wiring Diagram
CVT STSIG" .
Ground circuit for the starter relay. Refer to SC-12, "Wiring Diagram START —" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
Terminal Wire
color Item Condition Data (Approx.)
24 BR Starter relay
Selector lever in “N” and “P” positions Battery voltage
Selector lever in other positions 0 V
Item name Condition Display value
STRTR RLY OUT
Selector lever in “P” and
“N” positions ON
Selector lever in other
positions OFF
STRTR RLY MON
Selector lever in “P” and
“N” positions ON
Selector lever in other
positions OFF
Terminal Item Condition Data (Approx.)
24 Starter
relay
Selector lever in “N” and “P”
positions Battery voltage
Selector lever in other posi-
tions 0 V
SCIA2274E
SCIA2022E
DTC P0615 START SIGNAL CIRCUIT
CVT-75
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3. CHECK DTC
Perform CVT-72, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.
4. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
CVT-76
DTC P0703 STOP LAMP SWITCH CIRCUIT
Revision: June 2006 2007 Versa
DTC P0703 STOP LAMP SWITCH CIRCUIT PFP:25320
Description UCS005YX
ON, OFF status of the stop lamp switch is sent via the CAN communication from the combination meter to
TCM using the signal.
CONSULT-II Reference Value UCS005YY
On Board Diagnosis Logic UCS005YZ
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P0703 BRAKE SW/CIRC” with CONSULT-II is detected when the stop lamp
switch does not switch to ON and OFF.
The stop lamp switch does not switch to ON, OFF.
Possible Cause UCS005Z0
Harness or connectors
(Stop lamp switch, and combination meter circuit are open or shorted.)
(CAN communication line is open or shorted.)
Stop lamp switch
DTC Confirmation Procedure UCS005Z1
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine.
4. Start vehicle for at least 3 consecutive seconds.
5. If DTC is detected, go to CVT-77, "Diagnostic Procedure" .
Item name Condition Display value
BRAKE SW Depressed brake pedal ON
Released brake pedal OFF
BCIA0031E
DTC P0703 STOP LAMP SWITCH CIRCUIT
CVT-77
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Diagnostic Procedure UCS005Z2
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated?
YES >> Check CAN communication line. Refer to CVT-68, "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK STOP LAMP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out ON/OFF switching action of the “BRAKE SW”.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch harness connector E13
terminals 1 and 2. Refer to CVT-176, "Wiring Diagram CVT
NONDTC" .
Check stop lamp switch after adjusting brake pedal — refer to
BR-6, "BRAKE PEDAL" .
OK or NG
OK >> Check the following. If NG, repair or replace damaged
parts.
Harness for short or open between battery and stop lamp switch.
Harness for short or open between stop lamp switch and combination meter.
NG >> Repair or replace the stop lamp switch.
Item name Condition Display value
BRAKE SW Depressed brake pedal ON
Released brake pedal OFF
SCIA2275E
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No
SCIA7982E
CVT-78
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: June 2006 2007 Versa
DTC P0705 PARK/NEUTRAL POSITION SWITCH PFP:32006
Description UCS005Z3
The PNP switch is included in the control valve assembly.
The PNP switch includes 4 transmission position switches.
TCM judges the selector lever position by the PNP switch signal.
CONSULT-II Reference Value UCS005Z4
On Board Diagnosis Logic UCS005Z5
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-II is detected under the following condi-
tions.
When TCM does not receive the correct voltage signal from the PNP switches 1, 2, 3 and 4 based on the
gear position.
When the signal from monitor terminal of PNP switch 3 is different from PNP switch 3.
Possible Cause UCS005Z6
Harness or connectors
(PNP switches 1, 2, 3, 4 and TCM circuit is open or shorted.)
PNP switches 1, 2, 3, 4
PNP switch 3 monitor terminal is open or shorted
DTC Confirmation Procedure UCS005Z7
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
Shift position PNP switch 1 PNP switch 2 PNP switch 3 PNP switch 4 PNP switch 3 (monitor)
P OFF OFF OFF OFF OFF
R ON OFF OFF ON OFF
N ON ON OFF OFF OFF
DONONONON ON
L OFF ON ON OFF ON
Item name Condition Display value
INH SW3M Selector lever in “D” and “L” positions ON
Selector lever in “P”, “R” and “N” positions OFF
INH SW4 Selector lever in “R” and “D” positions ON
Selector lever in “P”, “N” and “L” positions OFF
INH SW3 Selector lever in “D” and “L” positions ON
Selector lever in “P”, “R” and “N” positions OFF
INH SW2 Selector lever in “N”, “D” and “L” positions ON
Selector lever in “P” and “R” positions OFF
INH SW1 Selector lever in “R”, “N” and “D” positions ON
Selector lever in “P” and “L” positions OFF
DTC P0705 PARK/NEUTRAL POSITION SWITCH
CVT-79
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Revision: June 2006 2007 Versa
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 2
consecutive seconds.
VEHICLE SPEED: More than 10 km/h (6 MPH)
ENG SPEED: More than 450 rpm
ACC PEDAL OPEN: More than 1.0/8
5. If DTC is detected, go to CVT-82, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
BCIA0031E
CVT-80
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — PNP/SW UCS005Z8
BCWA0670E
DTC P0705 PARK/NEUTRAL POSITION SWITCH
CVT-81
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TCM terminal data are reference values, measured between each terminal and ground.
Terminal Wire color Item Condition Data (Approx.)
27 GR PNP switch 1 Selector lever in “R”, “N” and “D” positions. 0 V
Selector lever in “P” and “L” positions. Battery voltage
32 Y PNP switch 3
(monitor)
Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions. 8.0 V - Battery volt-
age
34 SB PNP switch 2
Selector lever in “N”, “D” and “L” positions. 0 V
Selector lever in “P” and “R” positions. 10.0 V - Battery
voltage
35 W PNP switch 3
Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions. 8.0 V - Battery volt-
age
36 W PNP switch 4
Selector lever in “R” and “D” positions. 0 V
Selector lever in “P”, “N” and “L” positions. 10.0 V - Battery
voltage
CVT-82
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: June 2006 2007 Versa
Diagnostic Procedure UCS005Z9
1. CHECK PNP SW SIGNALS
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Change selector lever to “P”, “R”, “N”, “D” and “L” positions to
check the value of “INH SW1” “INH SW2” “INH SW3” “INH SW4”
and “INH SW3M”.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Change selector lever to “P“, “R”, “N”, “D” and “L” positions to
check voltage between the TCM connector terminals and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Shift
posi-
tion
“INH SW1” “INH SW2” “INH SW3” “INH SW4 “INH SW3M
P OFF OFF OFF OFF OFF
R ON OFF OFF ON OFF
N ON ON OFF OFF OFF
DONONONON ON
L OFF ON ON OFF ON
SCIA2276E
Shift
position
Connector E32
Te r mi n al
27 - Ground 34 - Ground 35 - Ground 36 - Ground 32 -
Ground
PBattery volt-
age 10.0 V - Bat-
tery voltage 8.0 V - Bat-
tery voltage 10.0 V - Bat-
tery voltage
8.0 V -
Battery
voltage
R0 V
10.0 V - Bat-
tery voltage
8.0 V - Bat-
tery voltage 0 V 8.0 V -
Battery
voltage
N0 V 0 V
8.0 V - Bat-
tery voltage
10.0 V - Bat-
tery voltage
8.0 V -
Battery
voltage
D0 V0 V0 V0 V0 V
LBattery volt-
age 0 V 0 V 10.0 V - Bat-
tery voltage 0 V
SCIA2024E
DTC P0705 PARK/NEUTRAL POSITION SWITCH
CVT-83
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2. CHECK PNP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM connector terminals and ground.
4. If OK, check harness for short-circuit to ground or power supply.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND PNP SWITCH
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Connector Terminal Condition Continuity
E32
27 - ground Select lever in “P” and “L” positions No
Select lever in other positions Yes
34 - ground Select lever in “P” and “R” positions No
Select lever in other positions Yes
35 - ground
Select lever in “P”, “R” and “N” posi-
tions No
Select lever in other positions Yes
36 - ground
Select lever in “P”,“N” and “L” posi-
tions No
Select lever in other positions Yes
32 - ground
Select lever in “P”, “R” and “N” posi-
tions No
Select lever in other positions Yes
SCIA5258E
Item Connector Terminal Continuity
TCM E32 27 Yes
CVT unit harness connector F46 4
TCM E32 34 Yes
CVT unit harness connector F46 5
TCM E32 35 Yes
CVT unit harness connector F46 14
TCM E32 32 Yes
CVT unit harness connector F46 18
TCM E32 36 Yes
CVT unit harness connector F46 15
SCIA3182E
CVT-84
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Revision: June 2006 2007 Versa
4. DETECT MALFUNCTIONING ITEM
Check PNP switch. Refer to CVT-84, "Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-78, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
Component Inspection UCS005ZA
PNP SWITCH
1. Change selector lever to various positions to check the continu-
ity between terminals on the PNP switch and ground.
2. If NG, check continuity with control cable disconnected. (Refer to step 1 above.)
3. If OK, with the control cable disconnected, adjust the control cable. Refer to CVT-195, "Adjustment of CVT
Position" .
4. If NG, even when the control cable is disconnected, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
PNP SW Shift position Connector Terminal Continuity
SW 1 “R”, “N”, “D”
F46
4 - Ground Yes
other positions No
SW 2 “N”, “D”, “L” 5 - Ground Yes
other positions No
SW 3 D”, “L” 14 - Ground Yes
other positions No
SW 4 R”, “D” 15 - Ground Yes
other positions No
SW 3 Moni-
tor
“D”, “L” 18 - Ground Yes
other positions No
SCIA4678E
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-85
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Revision: June 2006 2007 Versa
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT PFP:31020
Description UCS005ZB
The CVT fluid temperature sensor is included in the control valve assembly.
The CVT fluid temperature sensor detects the CVT fluid temperature and sends a signal to the TCM.
CONSULT-II Reference Value UCS005ZC
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS005ZD
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0710 ATF TEMP SEN/CIRC” with CONSULT-II is detected when TCM receives
an excessively low or high voltage from the sensor.
Possible Cause UCS005ZE
Harness or connectors
(Sensor circuit is open or shorted.)
CVT fluid temperature sensor
DTC Confirmation Procedure UCS005ZF
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and maintain the following conditions for at least 10
minutes (Total).
VEHICLE SPEED: 10 km/h (6 MPH) or more
ENG SPEED: 450 rpm more than
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
4. If DTC is detected, go to CVT-87, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
ATF TEMP SEN When CVT fluid temperature is 20°C (68°F). 2.0 V
When CVT fluid temperature is 80°C (176°F). 1.0 V
BCIA0031E
CVT-86
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — FTS UCS005ZG
BCWA0671E
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-87
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Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS005ZH
1. CHECK CVT FLUID TEMPERATURE SENSOR SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out the value of “ATF TEMP SEN”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between connector terminal and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK CVT FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
Terminal Wire color Item Condition Data (Approx.)
42 LG Sensor ground Always 0 V
47 G CVT fluid tempera-
ture sensor
When CVT fluid temperature is 20°C (68°F). 2.0 V
When CVT fluid temperature is 80°C (176°F). 1.0 V
Item name Condition Display value
(Approx.)
ATF TEMP SEN
When CVT fluid temperature is 20°C
(68°F). 2.0 V
When CVT fluid temperature is 80°C
(176°F). 1.0 V SCIA2277E
Name Connector Terminal Temperature
°C (°F) Voltage
(Approx.)
CVT fluid tem-
perature sen-
sor E32 47 - 42
20 (68) 2.0 V
80 (176) 1.0 V
SCIA2027E
Name Connector Terminal Temperature
°C (°F) Resistance
(Approx.)
CVT fluid tem-
perature sensor E32 47 - 42 20 (68) 6.5 k
80 (176) 0.9 k
SCIA2510E
CVT-88
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
Revision: June 2006 2007 Versa
3. CHECK CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector termi-
nals.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
4. CHECK HARNESS BETWEEN TCM AND CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-85, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Name Connector Terminal Tempera-
ture °C (°F)
Resistance
(Approx.)
CVT fluid
tempera-
ture sensor F46 17 - 19
20 (68) 6.5 k
80 (176) 0.9 k
SCIA4679E
Item Connector Terminal Continuity
TCM E32 42 Yes
CVT unit harness connector F46 19
TCM E32 47 Yes
CVT unit harness connector F46 17
SCIA4680E
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-89
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Component Inspection UCS005ZI
CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector termi-
nals.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Name Connector Terminal Te mp era -
ture °C (°F)
Resistance
(Approx.)
CVT fluid
tempera-
ture sensor
F46 17 - 19
20 (68) 6.5 k
80 (176) 0.9 k
SCIA4679E
CVT-90
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Revision: June 2006 2007 Versa
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR) PFP:31935
Description UCS005ZJ
The input speed sensor (primary speed sensor) is included in the control valve assembly.
The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends a
signal to the TCM.
CONSULT-II Reference Value UCS005ZK
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS005ZL
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0715 INPUT SPD SEN/CIRC” with CONSULT-II is detected when TCM does
not receive the proper signal from the sensor.
Possible Cause UCS005ZM
Harness or connectors
(Sensor circuit is open or shorted.)
Input speed sensor (Primary speed sensor)
DTC Confirmation Procedure UCS005ZN
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-92, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.
BCIA0031E
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
CVT-91
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Revision: June 2006 2007 Versa
Wiring Diagram — CVT — PRSCVT UCS005ZO
BCWA0672E
CVT-92
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS005ZP
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “PRI SPEED SEN”.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Check the pulse with CONSULT-II or oscilloscope, when vehicle
cruises.
OK or NG
OK >> GO TO 6.
NG - 1 >> Battery voltage is not supplied: GO TO 3.
NG - 2 >> Battery voltage is supplied, but there is a malfunction in
the frequency: GO TO 4.
Terminal Wire color Item Condition Data (Approx.)
38 V
Input speed sensor
(Primary speed sen-
sor)
When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz
42 LG Sensor ground Always 0 V
46 O Sensor power
5.0 V
— 0 V
Item name Condition Display value
PRI SPEED SEN During driving (lock-up
ON)
Approximately matches
the engine speed.
SCIA2278E
Item Connector Terminal Data (Approx.)
TCM E32 46 - 42 5.0 V
Name Condition
Input speed sensor
(Primary speed
sensor)
When running at 20 km/h (12 MPH) in “L” position with the
closed throttle position signal OFF, use the CONSULT-II
pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal Name Data
(Approx.)
TCM E32 38 Input speed sensor (Primary
speed sensor) 1000 Hz
SCIA1915E
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
CVT-93
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3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR [INPUT SPEED SEN-
SOR (PRIMARY SPEED SENSOR)]
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
5. CHECK THE TCM SHORT
Replace same type TCM, perform self-diagnosis check. Erase self-diagnostic results and then drive the vehi-
cle [10 km/h (6 MPH) or more], perform self-diagnosis check. Refer to CVT-90, "DTC Confirmation Procedure"
.
Is the P0715 INPUT SPD SEN/CIRC detected again?
YES >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NO >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
6. CHECK DTC
Perform CVT-90, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
Item Connector Terminal Continuity
TCM E32 42 Yes
CVT unit harness connector F46 19
TCM E32 46 Yes
CVT unit harness connector F46 20
SCIA4681E
Item Connector Terminal Continuity
TCM E32 38 Yes
CVT unit harness connector F46 22
SCIA4682E
CVT-94
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Revision: June 2006 2007 Versa
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
CVT-95
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DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
PFP:31935
Description UCS005ZQ
The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)] detects the revolution of the
CVT output shaft and emits a pulse signal. The pulse signal is sent to the TCM, which converts it into vehicle
speed.
CONSULT-II Reference Value UCS005ZR
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS005ZS
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0720 VEH SPD SEN/CIR AT” with CONSULT-II is detected TCM does not
receive the proper signal from the sensor.
Possible Cause UCS005ZT
Harness or connectors
(Sensor circuit is open or shorted.)
Output speed sensor (Secondary speed sensor)
DTC Confirmation Procedure UCS005ZU
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 12
consecutive seconds.
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-97, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
VSP SENSOR During driving Approximately matches the speedometer reading.
BCIA0031E
CVT-96
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — SESCVT UCS005ZV
BCWA0673E
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
CVT-97
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Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS005ZW
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “VSP SENSOR”.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
2. CHECK SECONDARY SPEED SENSOR
With CONSULT-II
1. Start engine.
2. Check power supply to output speed sensor (secondary speed sensor) by voltage between TCM connec-
tor terminals 10, 19 and 42. Refer to CVT-42, "Circuit Diagram" .
3. If OK, check the pulse when vehicle cruises.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
Terminal Wire color Item Condition Data (Approx.)
29 R
Output speed
sensor (Second-
ary speed sen-
sor)
When driving [“D” position, 20 km/h
(12 MPH)]. 570 Hz
42 LG Sensor ground Always 0 V
Item name Condition Display value
VSP SENSOR During driving Approximately matches
the speedometer reading.
SCIA2279E
Item Connector Terminal Data (Approx.)
TCM E31, E32 10 - 42 Battery voltage
19 - 42
Name Condition
Output speed sen-
sor (Secondary
speed sensor)
When running at 20 km/h (12 MPH) in “D” position, use the
CONSULT-II pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal Name Data
(Approx.)
TCM E32 29 Output speed sensor (Sec-
ondary speed sensor) 570 Hz
SCIA2344E
CVT-98
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
Revision: June 2006 2007 Versa
3. CHECK POWER AND SENSOR GROUND
1. Turn ignition switch OFF.
2. Disconnect the output speed sensor (secondary speed sensor) harness connector.
3. Turn ignition switch ON.
4. Check voltage between output speed sensor (secondary speed
sensor) harness connector terminals.
5. Check voltage between output speed sensor (secondary speed
sensor) harness connector terminal and ground.
6. If OK, check harness for short to ground and short to power.
7. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG - 1 >> Battery voltage is not supplied between terminals 1 and 3, terminals 1 and ground.: GO TO 6.
NG - 2 >> Battery voltage is not supplied between terminals 1 and 3 only.: GO TO 7.
4. CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SEN-
SOR)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
3. Check continuity between TCM connector terminal and output
speed sensor (secondary speed sensor) harness connector ter-
minal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item Connector Terminal Data
(Approx.)
Output speed sensor (Sec-
ondary speed sensor) F48 3 - 1 Battery volt-
age
SCIA2345E
Item Connector Terminal Data
(Approx.)
Output speed sensor (Sec-
ondary speed sensor) F48 3 - ground Battery volt-
age
SCIA2346E
Item Connector Terminal Continuity
TCM E32 29
Yes
Output speed sensor (Sec-
ondary speed sensor) F48 2
SCIA1967E
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
CVT-99
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Revision: June 2006 2007 Versa
5. CHECK THE TCM SHORT
Replace same type TCM, perform self-diagnosis check. Erase self-diagnostic results and them drive the vehi-
cle [more than 40 km/h (25 MPH)], perform self-diagnosis check. Refer to CVT-95, "DTC Confirmation Proce-
dure" .
Is P0720 VEH SPD SEN/CIR AT detected again?
YES >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NO >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
6. CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SEN-
SOR) (POWER)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
3. Check continuity between TCM connector terminals and output
speed sensor (secondary speed sensor) harness connector ter-
minal. Refer to CVT-42, "Circuit Diagram" .
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> 10 A fuse (No. 49, located in the IPDM E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SEN-
SOR) (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
3. Check continuity between TCM connector terminal and output
speed sensor (secondary speed sensor) harness connector ter-
minal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK DTC
Perform CVT-95, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 9.
Item Connector Terminal Continuity
TCM E31 10
Yes
Output speed sensor (Sec-
ondary speed sensor) F48 3
TCM E31 19
Yes
Output speed sensor (Sec-
ondary speed sensor) F48 3 SCIA2369E
Item Connector Terminal Continuity
TCM E32 42
Yes
Output speed sensor (Sec-
ondary speed sensor) F48 1
SCIA2347E
CVT-100
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
Revision: June 2006 2007 Versa
9. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
DTC P0725 ENGINE SPEED SIGNAL
CVT-101
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DTC P0725 ENGINE SPEED SIGNAL PFP:24825
Description UCS005ZX
The engine speed signal is sent from the ECM to the TCM.
CONSULT-II Reference Value UCS005ZY
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS005ZZ
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P0725 ENGINE SPEED SIG” with CONSULT-II is detected when TCM does not
receive the engine speed signal (input by CAN communication) from ECM.
Possible Cause UCS00600
Harness or connectors
(The ECM to the TCM circuit is open or shorted.)
DTC Confirmation Procedure UCS00601
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 10
consecutive seconds.
PRI SPEED SEN: More than 1000 rpm
3. If DTC is detected, go to CVT-101, "Diagnostic Procedure" .
Diagnostic Procedure UCS00602
1. CHECK DTC WITH ECM
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ENGINE” with CONSULT-II. Refer to EC-116, "SELF-DIAG
RESULTS MODE" .
OK or NG
OK >> GO TO 2.
NG >> Check the DTC detected item. Refer to EC-116, "SELF-DIAG RESULTS MODE" .
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading.
ACC PEDAL OPEN Released accelerator pedal - Fully depressed accel-
erator pedal 0.0/8 - 8.0/8
BCIA0031E
CVT-102
DTC P0725 ENGINE SPEED SIGNAL
Revision: June 2006 2007 Versa
2. CHECK DTC WITH TCM
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-II. Refer to CVT-60, "SELF-
DIAGNOSTIC RESULT MODE" .
OK or NG
OK >> GO TO 3.
NG >> Check the DTC detected item. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
If DTC of CAN communication line is detected, go to CVT-68, "DTC U1000 CAN COMMUNICA-
TION LINE" .
3. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. While monitoring “ENG SPEED SIG”, check for engine speed
change corresponding to “ACC PEDAL OPEN”.
OK or NG
OK >> GO TO 4.
NG >> Check ignition signal circuit. Refer to EC-576, "IGNITION SIGNAL" .
4. CHECK DTC
Perform CVT-101, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the
tachometer reading.
ACC PEDAL OPEN Released accelerator
pedal - Fully depressed
accelerator pedal
0.0/8 - 8.0/8 SCIA4504E
DTC P0730 BELT DAMAGE
CVT-103
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DTC P0730 BELT DAMAGE PFP:31935
Description UCS00603
TCM selects the gear ratio using the engine load (throttle position), the primary pulley revolution speed, and
the secondary pulley revolution speed as input signal. Then it changes the operating pressure of the primary
pulley and the secondary pulley and changes the groove width of the pulley.
CONSULT-II Reference Value UCS00604
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS00605
This is not an OBD-II self-diagnostic item.
TCM calculates the actual gear ratio with input speed sensor (primary speed sensor) and output speed
sensor (secondary speed sensor).
Diagnostic trouble code “P0730 BELT DAMG” with CONSULT-II is detected, when TCM receives an unex-
pected gear ratio signal.
Possible Cause UCS00606
Transaxle assembly
DTC Confirmation Procedure UCS00607
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Make sure that output voltage of CVT fluid temperature sensor
is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage
(warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
3. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
4. Start engine and maintain the following conditions for at least 30
consecutive seconds.
TEST START FROM 0 km/h (0 MPH)
CONSTANT ACCELERATION: Keep 30 sec or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
5. If DTC is detected, go to CVT-104, "Diagnostic Procedure" .
Item name Condition Display value (Approx.)
GEAR RATIO During driving 2.56 - 0.43
BCIA0031E
CVT-104
DTC P0730 BELT DAMAGE
Revision: June 2006 2007 Versa
Diagnostic Procedure UCS00608
1. CHECK DTC
Perform CVT-103, "DTC Confirmation Procedure" .
Are any DTC displayed?
YES - 1>> DTC except for “P0730 BELT DAMG” is displayed: Go to Check the DTC detected item. Refer to
CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
YES - 2>> DTC for “P0730 BELT DAMG” is displayed: Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
NO >> INSPECTION END
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
CVT-105
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DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE PFP:31940
Description UCS00609
The torque converter clutch solenoid valve is included in the control valve assembly.
The torque converter clutch solenoid valve is activated by the TCM in response to signals sent from the
vehicle speed and accelerator pedal position sensors. Lock-up piston operation will then be controlled.
Lock-up operation, however, is prohibited when CVT fluid temperature is too low.
When the accelerator pedal is depressed (less than 2.0/8) in lock-up condition, the engine speed should
not change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT-II Reference Value UCS0060A
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0060B
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0740 TCC SOLENOID/CIRC” with CONSULT-II is detected under the following
conditions.
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Cause UCS0060C
Torque converter clutch solenoid valve
Harness or connectors
(Solenoid circuit is open or shorted.)
DTC Confirmation Procedure UCS0060D
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II and wait at least 10 consecutive seconds.
3. If DTC is detected, go to CVT-107, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
ISOLT1 Lock-up OFF 0.0 A
Lock-up ON 0.7 A
BCIA0031E
CVT-106
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — TCV UCS0060E
BCWA0674E
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
CVT-107
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TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0060F
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “ISOLT1”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between the connector terminal and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
Terminal Wire color Item Condition Data (Approx.)
3SB
Torque converter
clutch solenoid
valve
When vehi-
cle cruises in
“D” position.
When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.0 V
Item name Condition Display value (Approx.)
ISOLT1 Lock-up OFF 0.0 A
Lock-up ON 0.7 A
SCIA2349E
Name Connector Terminal Condition Voltage
(Approx.)
Torque
converter
clutch sole-
noid valve
E31 3 - ground
When vehi-
cle cruises
in “D” posi-
tion
Lock-up ON 6.0 V
Lock-up OFF 1.0 V
SCIA7954E
Solenoid valve Connector Terminal Resistance
(Approx.)
Torque converter clutch
solenoid valve E31 3 - Ground 5 - 20
SCIA1970E
CVT-108
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Revision: June 2006 2007 Versa
3. CHECK HARNESS BETWEEN TCM AND TORQUE CONVERTER CLUTCH SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and CVT assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-105, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Item Connector Terminal Continuity
TCM E31 3
Yes
CVT unit harness connec-
tor F46 12
SCIA4683E
Solenoid Valve Connector Terminal Resistance
(Approx.)
Torque converter clutch sole-
noid valve F46 12 - Ground 5 - 20
SCIA4684E
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
CVT-109
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Component Inspection UCS0060G
TORQUE CONVERTER CLUTCH SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Solenoid Valve Connector Terminal Resistance
(Approx.)
Torque converter clutch sole-
noid valve F46 12 - Ground 5 - 20
SCIA4684E
CVT-110
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 2006 2007 Versa
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) PFP:31940
Description UCS0060H
The torque converter clutch solenoid valve is included in the control valve assembly.
This malfunction is detected when the torque converter clutch does not lock-up as instructed by the TCM.
This is not only caused by electrical malfunction (circuits open or shorted), but also by mechanical mal-
function such as control valve sticking, improper solenoid valve operation, etc.
CONSULT-II Reference Value UCS0060I
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0060J
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” with CONSULT-II is detected under the following
conditions.
When CVT cannot perform lock-up even if electrical circuit is good.
When TCM compares difference value with slip revolution and detects an irregularity.
Possible Cause UCS0060K
Torque converter clutch solenoid valve
Hydraulic control circuit
DTC Confirmation Procedure UCS0060L
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and maintain the following condition for at least 30
seconds.
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
[Vehicle speed: Constant speed of more than 40 km/h (25
MPH)]
4. If DTC is detected go to CVT-111, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.
BCIA0031E
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
CVT-111
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Diagnostic Procedure UCS0060M
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle.
4. Check if there is a great difference between “ENG SPEED SIG”
and “PRI SPEED SEN”. (Lock-up ON.)
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-46, "Judgement of Line Pressure Test" .
3. DETECT MALFUNCTIONING ITEM
Check the following:
Torque converter clutch solenoid valve. Refer to CVT-109, "Component Inspection" .
Lock-up select solenoid valve. Refer to CVT-162, "Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM AND INPUT SPEED
SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system and input speed sensor (primary speed sensor)
system. Refer to CVT-95, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)" ,
CVT-90, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-110, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the
tachometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches
the engine speed.
SCIA2279E
CVT-112
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 2006 2007 Versa
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
DTC P0745 LINE PRESSURE SOLENOID VALVE
CVT-113
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DTC P0745 LINE PRESSURE SOLENOID VALVE PFP:31940
Description UCS0060N
The pressure control solenoid valve A (line pressure solenoid valve) in included in the control valve
assembly.
The pressure control solenoid valve A (line pressure solenoid valve) regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent from the TCM.
CONSULT-II Reference Value UCS0060O
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0060P
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0745 L/PRESS SOL/CIRC” with CONSULT-II is detected under the following
conditions.
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
When TCM compares target value with monitor value and detects an irregularity.
Possible Cause UCS0060Q
Harness or connectors
(Solenoid circuit is open or shorted.)
Pressure control solenoid valve A (Line pressure solenoid valve)
DTC Confirmation Procedure UCS0060R
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and wait at least 5 seconds.
3. If DTC is detected, go to CVT-115, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
ISOLT2 Release your foot from the accelerator pedal. 0.8 A
Press the accelerator pedal all the way down. 0.0 A
BCIA0031E
CVT-114
DTC P0745 LINE PRESSURE SOLENOID VALVE
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — LPSV UCS0060S
BCWA0675E
DTC P0745 LINE PRESSURE SOLENOID VALVE
CVT-115
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TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0060T
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out the value of “ISOLT2”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Terminal Wire color Item Condition Data (Approx.)
1GR
Pressure control
solenoid valve A
(Line pressure
solenoid valve)
and
Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 1.0 - 3.0 V
Item name Condition Display value (Approx.)
ISOLT2
Release your foot from
the accelerator pedal. 0.8 A
Press the accelerator
pedal all the way down. 0.0 A
SCIA2349E
Name Connector Terminal Condition Voltage
(Approx.)
Pressure
control
solenoid
valve A
(Line pres-
sure sole-
noid valve)
E31 1 - ground
Release your foot from
the accelerator pedal. 5.0 - 7.0 V
Press the accelerator
pedal all the way down. 1.0 - 3.0 V
SCIA2348E
CVT-116
DTC P0745 LINE PRESSURE SOLENOID VALVE
Revision: June 2006 2007 Versa
2. CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
4. CHECK HARNESS BETWEEN TCM AND PRESSURE CONTROL SOLENOID VALVE A (LINE PRES-
SURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector and TCM connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and CVT assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK DTC
Perform CVT-113, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
Solenoid valve Connector Terminal Resistance
(Approx.)
Pressure control solenoid valve A
(Line pressure solenoid valve) E31 1 - ground 2.5 - 5.0
SCIA4685E
Solenoid valve Connector Terminal Resistance
(Approx.)
Pressure control solenoid valve A
(Line pressure solenoid valve) F46 2 - Ground 2.5 - 5.0
SCIA4686E
Item Connector Terminal Continuity
TCM E31 1 Yes
CVT unit harness connector F46 2
SCIA4687E
DTC P0745 LINE PRESSURE SOLENOID VALVE
CVT-117
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6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
Component Inspection UCS0060U
PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Solenoid valve Connector Terminal Resistance
(Approx.)
Pressure control solenoid valve A
(Line pressure solenoid valve) F46 2 - Ground 2.5 - 5.0
SCIA4686E
CVT-118
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRES-
SURE SOLENOID VALVE)
Revision: June 2006 2007 Versa
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRES-
SURE SOLENOID VALVE) PFP:31941
Description UCS0060V
The pressure control solenoid valve A (line pressure solenoid valve) are included in the control valve
assembly.
The pressure control solenoid valve A (line pressure solenoid valve) regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent from the TCM.
CONSULT-II Reference Value UCS0060W
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0060X
This is an OBD-II self-diagnostic item.
Diagnostic trouble codeP0746 PRS CNT SOL/A FCTN” with CONSULT-II is detected under the following
conditions.
Unexpected gear ratio was detected in the LOW side due to excessively low line pressure.
Possible Cause UCS0060Y
Line pressure control system
Output speed sensor (Secondary speed sensor)
Input speed sensor (Primary speed sensor)
DTC Confirmation Procedure UCS0060Z
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 10
consecutive seconds. Test start from 0 km/h (0 MPH).
ATF TEMP SEN: 1.0 - 2.0 V
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
VEHICLE SPEED: 10 km/h (6 MPH) More than
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-119, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
PRI PRESS “N” position idle 0.4 MPa
BCIA0031E
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRES-
SURE SOLENOID VALVE)
CVT-119
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Revision: June 2006 2007 Versa
Diagnostic Procedure UCS00610
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “PRI PRESS”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-46, "Judgement of Line Pressure Test" .
3. DETECT MALFUNCTIONING ITEM
Check pressure control solenoid valve A (line pressure solenoid valve). Refer to CVT-117, "Component
Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM AND INPUT SPEED
SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system and input speed sensor (primary speed sensor)
system. Refer to CVT-95, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)" ,
CVT-90, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
Item name Condition Display value (Approx.)
PRI PRESS N” position idle 0.4 MPa
SCIA2366E
Name Connector Terminal Condition Voltage
(Approx.)
Transmission
fluid pressure
sensor B (Pri-
mary pressure
sensor)
E32 41 - Ground N” position idle 0.7 V
SCIA1922E
CVT-120
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRES-
SURE SOLENOID VALVE)
Revision: June 2006 2007 Versa
5. DETECT MALFUNCTIONING ITEM
Check the following:
Power supply and ground circuit for TCM. Refer to CVT-146, "Wiring Diagram CVT POWER" .
The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform CVT-118, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the transaxle assembly or TCM. Refer to CVT-207, "Removal and Installation" .
DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE)
CVT-121
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Revision: June 2006 2007 Versa
DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE) PFP:31941
Description UCS00611
The pressure control solenoid valve B (secondary pressure solenoid valve) is included in the control valve
assembly.
The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the secondary pres-
sure to suit the driving condition in response to a signal sent from the TCM.
CONSULT-II Reference Value UCS00612
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS00613
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0776 PRS CNT SOL/B FCTN” with CONSULT-II is detected when secondary
pressure is too high or too low compared with the commanded value while driving.
Possible Cause UCS00614
Harness or connectors
(Solenoid circuit is open or shorted.)
Pressure control solenoid valve B (Secondary pressure solenoid valve system)
Transmission fluid pressure sensor A (Secondary pressure sensor)
Line pressure control system
DTC Confirmation Procedure UCS00615
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 30
consecutive seconds.
ATF TEMP SEN: 1.0 - 2.0 V
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
VEHICLE SPEED: 10 km/h (6 MPH) More than
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-122, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
SEC PRESS “N” position idle 0.8 MPa
BCIA0031E
CVT-122
DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE)
Revision: June 2006 2007 Versa
Diagnostic Procedure UCS00616
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC PRESS”.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-46, "Judgement of Line Pressure Test" .
3. DETECT MALFUNCTIONING ITEM
Check the following:
Pressure control solenoid valve B (Secondary pressure solenoid valve). Refer to CVT-128, "Component
Inspection" .
Pressure control solenoid valve A (Line pressure solenoid valve). Refer to CVT-117, "Component Inspec-
tion" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR) SYS-
TEM
Check transmission fluid pressure sensor A (secondary pressure sensor) system. Refer to CVT-129, "DTC
P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC PRESSURE SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
Check the following:
Power supply and ground circuit for TCM. Refer to CVT-146, "Wiring Diagram CVT POWER" .
The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
Item name Condition Display value (Approx.)
SEC PRESS “N” position idle 0.8 MPa
SCIA2366E
DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE)
CVT-123
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CVT
Revision: June 2006 2007 Versa
6. CHECK DTC
Perform CVT-121, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
CVT-124
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
Revision: June 2006 2007 Versa
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE
SOLENOID VALVE) PFP:31941
Description UCS00617
The pressure control solenoid valve B (secondary pressure solenoid valve) is included in the control valve
assembly.
The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the oil pump dis-
charge pressure to suit the driving condition in response to a signal sent from the TCM.
CONSULT-II Reference Value UCS00618
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS00619
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0778 PRS CNT SOL/B CIRC” with CONSULT-II is detected under the following
conditions.
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
When TCM compares target value with monitor value and detects an irregularity.
Possible Cause UCS0061A
Harness or connectors
(Solenoid circuit is open or shorted.)
Pressure control solenoid valve B (Secondary pressure solenoid valve)
DTC Confirmation Procedure UCS0061B
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and wait at least 5 seconds.
4. If DTC is detected, go to CVT-126, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
ISOLT3 Secondary pressure low - Secondary pressure high 0.8 - 0.0 A
SOLMON3 “N” position idle 0.6 - 0.7 A
When stalled 0.4 - 0.6 A
BCIA0031E
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
CVT-125
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CVT
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — SECPSV UCS0061C
BCWA0676E
CVT-126
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0061D
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out the value of “ISOLT3”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Terminal Wire color Item Condition Data (Approx.)
2LG
Pressure control
solenoid valve B
(Secondary pres-
sure solenoid
valve)
and
Release your foot from the accelera-
tor pedal. 5.0 - 7.0 V
Press the accelerator pedal all the
way down. 3.0 - 4.0 V
Item name Condition Display value (Approx.)
ISOLT3 Secondary pressure low -
Secondary pressure high 0.8 - 0.0 A
SCIA2349E
Name Connector Terminal Condition Voltage
(Approx.)
Pressure
control
solenoid
valve B
(Second-
ary pres-
sure
solenoid
valve)
E31 2 - ground
Release your foot from
the accelerator pedal. 5.0 - 7.0 V
Press the accelerator
pedal all the way down. 3.0 - 4.0 V
SCIA4506E
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
CVT-127
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B
CVT
Revision: June 2006 2007 Versa
2. CHECK PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)
CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK HARNESS BETWEEN TCM AND PRESSURE CONTROL SOLENOID VALVE B (SECONDARY
PRESSURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-124, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
Solenoid valve Connector Terminal Resistance
(Approx.)
Pressure control solenoid
valve B (Secondary pres-
sure solenoid valve) E31 2 - Ground 2.5 - 5.0
SCIA4507E
Solenoid valve Connector Terminal Resistance
(Approx.)
Pressure control solenoid
valve B (Secondary pres-
sure solenoid valve)
F46 3 - Ground 2.5 - 5.0
SCIA4688E
Item Connector Terminal Continuity
TCM connector E31 2
Yes
CVT unit harness connec-
tor F46 3
SCIA4689E
CVT-128
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
Revision: June 2006 2007 Versa
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
Component Inspection UCS0061E
PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Solenoid Valve Connector Terminal Resistance
(Approx.)
Pressure control sole-
noid valve B (Secondary
pressure solenoid valve) F46 3 - Ground 2.5 - 5.0
SCIA4688E
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
CVT-129
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CVT
Revision: June 2006 2007 Versa
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR) PFP:31936
Description UCS0061N
The transmission fluid pressure sensor A (secondary pressure sensor) is included in the control valve
assembly.
The transmission fluid pressure sensor A (secondary pressure sensor) detects secondary pressure of
CVT and sends TCM the signal.
CONSULT-II Reference Value UCS0061O
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0061P
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0840 TR PRS SENS/A CIRC” with CONSULT-II is detected when TCM detects
an improper voltage drop when it receives the sensor signal.
Possible Cause UCS0061Q
Transmission fluid pressure sensor A (Secondary pressure sensor)
Harness or connectors
(Switch circuit is open or shorted.)
DTC Confirmation Procedure UCS0061R
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Make sure that output voltage of line temperature sensor is
within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage
(warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
3. Start engine and wait for at least 5 consecutive seconds.
4. If DTC is detected, go to CVT-131, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
SEC HYDR SEN “N” position idle 1.0 V
SEC PRESS 0.8 MPa
BCIA0031E
CVT-130
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — SECPS UCS0061S
BCWA0677E
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
CVT-131
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CVT
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0061T
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC HYDR SEN.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Terminal Wire color Item Condition Data (Approx.)
37 L
Transmission fluid
pressure sensor A
(Secondary pres-
sure sensor)
and “N” position idle 1.0 V
42 LG Sensor ground Always 0 V
46 O Sensor power
—5.0 V
— 0 V
Item name Condition Display value (Approx.)
SEC HYDR SEN “N” position idle 1.0 V
SCIA2279E
Name Connector Terminal Condition Voltage
(Approx.)
Transmission
fluid pres-
sure sensor A
(Secondary
pressure sen-
sor)
E32 37 - Ground N” position idle 1.0 V
SCIA4508E
CVT-132
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
Revision: June 2006 2007 Versa
2. CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between TCM connector terminals.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND TRANSMISSION FLUID PRESSURE SENSOR A (SECOND-
ARY PRESSURE SENSOR)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Item Connector Terminal Data
(Approx.)
TCM connector E32 46 - 42 5.0 V
SCIA2367E
Item Connector Terminal Continuity
TCM E32 42 Yes
CVT unit harness connector F46 19
TCM E32 46 Yes
CVT unit harness connector F46 20
SCIA4681E
Item Connector Terminal Continuity
TCM E32 37 Yes
CVT unit harness connector F46 23
SCIA4690E
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
CVT-133
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B
CVT
Revision: June 2006 2007 Versa
5. CHECK DTC
Perform CVT-129, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
CVT-134
DTC P0841 PRESSURE SENSOR FUNCTION
Revision: June 2006 2007 Versa
DTC P0841 PRESSURE SENSOR FUNCTION PFP:31936
Description UCS0061U
Using the engine load (throttle position), the primary pulley revolution speed, and the secondary pulley revolu-
tion speed as input signal, TCM changes the operating pressure of the primary pulley and the secondary pul-
ley and changes the groove width of the pulley to control the gear ratio.
CONSULT-II Reference Value UCS0061V
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0061W
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P0841 PRESS SEN/FNCTN” with CONSULT-II is detected when correlation
between the values of the secondary pressure sensor and the primary pressure sensor is out of specifica-
tion.
Possible Cause UCS0061X
Transmission fluid pressure sensor A (Secondary pressure sensor)
Transmission fluid pressure sensor B (Primary pressure sensor)
Harness or connectors
(Sensor circuit is open or shorted.)
DTC Confirmation Procedure UCS0061Y
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 12
consecutive seconds.
VEHICLE SPEED: 40 km/h (25 MPH) More than
RANGE: “D” position
3. If DTC is detected, go to CVT-135, "Diagnostic Procedure" .
Item name Condition Display value (Approx.)
PRI HYDR SEN “N” position idle 0.7 V
SEC HYDR SEN 1.0 V
BCIA0031E
DTC P0841 PRESSURE SENSOR FUNCTION
CVT-135
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B
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Revision: June 2006 2007 Versa
Diagnostic Procedure UCS0061Z
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated?
YES >> Check CAN communication line. Refer to CVT-68, "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC HYDR SENand
“PRI HYDR SEN”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 3.
3. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts. Refer to CVT-46, "Judgement of Line Pressure Test" .
4. CHECK TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR) SYS-
TEM AND TRANSMISSION FLUID PRESSURE SENSOR B (PRIMARY PRESSURE SENSOR) SYSTEM
Check transmission fluid pressure sensor A (secondary pressure sensor) system and transmission fluid pres-
sure sensor B (primary pressure sensor) system. Refer to CVT-129, "DTC P0840 TRANSMISSION FLUID
Item name Condition Display value (Approx.)
PRI HYDR SEN “N” position idle 0.7 V
SEC HYDR SEN 1.0 V
SCIA2277E
Name Connector Terminal Condition Voltage
(Approx.)
Transmission fluid
pressure sensor B
(Primary pres-
sure sensor) E32
41 - Ground
“N” position idle
0.7 V
Transmission fluid
pressure sensor A
(Secondary pres-
sure sensor)
37 - Ground 1.0 V
SCIA6879E
CVT-136
DTC P0841 PRESSURE SENSOR FUNCTION
Revision: June 2006 2007 Versa
PRESSURE SENSOR A CIRCUIT (SEC PRESSURE SENSOR)" , CVT-137, "DTC P0845 TRANSMISSION
FLUID PRESSURE SENSOR B CIRCUIT (PRI PRESSURE SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
Check the following:
Pressure control solenoid valve A (Line pressure solenoid valve). Refer to CVT-117, "Component Inspec-
tion" .
Pressure control solenoid valve B (Secondary pressure solenoid valve). Refer to CVT-128, "Component
Inspection" .
Step motor. Refer to CVT-167, "Component Inspection" .
OK or NG6
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform CVT-134, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace TCM or transaxle assembly. Refer to CVT-207, "Removal and Installation" .
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
CVT-137
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Revision: June 2006 2007 Versa
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI PRES-
SURE SENSOR) PFP:31936
Description UCS00620
The transmission fluid pressure sensor B (primary pressure sensor) is included in the control valve
assembly.
The transmission fluid pressure sensor B (primary pressure sensor) detects primary pressure of CVT and
sends TCM the signal.
CONSULT-II Reference Value UCS00621
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS00622
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0845 TR PRS SENS/B CIRC with CONSULT-II is detected under the following
conditions.
When TCM detects an improper voltage drop when it receives the sensor signal.
When TCM compares target value with monitor value and detects an irregularity.
Possible Cause UCS00623
Transmission fluid pressure sensor B (Primary pressure sensor)
Harness or connectors
(Sensor circuit is open or shorted.)
DTC Confirmation Procedure UCS00624
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Make sure that output voltage of line temperature sensor is
within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage
(warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
3. Start engine and wait for at least 5 consecutive seconds.
4. If DTC is detected, go to CVT-139, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
PRI HYDR SEN “N” position idle 0.7 V
BCIA0031E
CVT-138
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — PRIPS UCS00625
BCWA0678E
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
CVT-139
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Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS00626
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “PRI HYDR SEN”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Terminal Wire color Item Condition Data (Approx.)
41 G
Transmission fluid
pressure sensor B
(Primary pressure
sensor)
and “N” position idle 0.7 V
42 LG Sensor ground Always 0 V
46 O Sensor power
—5.0 V
—0 V
Item name Condition Display value (Approx.)
PRI HYDR SEN “N” position idle 0.7 V
SCIA2277E
Name Connector Terminal Condition Voltage
(Approx.)
Transmis-
sion fluid
pressure
sensor B
(Primary
pressure
sensor)
E32 41 - Ground “N” position idle 0.7 V
SCIA4509E
CVT-140
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
Revision: June 2006 2007 Versa
2. CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between TCM connector terminals.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND TRANSMISSION FLUID PRESSURE SENSOR B (PRIMARY
PRESSURE SENSOR)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Item Connector Terminal Data
(Approx.)
TCM connector E32 46 - 42 5.0 V
SCIA2367E
Item Connector Terminal Continuity
TCM E32 42 Yes
CVT unit harness connector F46 19
TCM E32 46 Yes
CVT unit harness connector F46 20
SCIA4681E
Item Connector Terminal Continuity
TCM E32 41 Yes
CVT unit harness connector F46 25
SCIA4691E
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
CVT-141
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Revision: June 2006 2007 Versa
5. CHECK DTC
Perform CVT-137, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
CVT-142
DTC P0868 SECONDARY PRESSURE DOWN
Revision: June 2006 2007 Versa
DTC P0868 SECONDARY PRESSURE DOWN PFP:31941
Description UCS00627
The pressure control solenoid valve B (secondary pressure solenoid valve) is included in the control valve
assembly.
The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the secondary pres-
sure to suit the driving condition in response to a signal sent from the TCM.
CONSULT-II Reference Value UCS00628
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS00629
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P0868 SEC/PRESS DOWN” with CONSULT-II is detected when secondary fluid
pressure is too low compared with the commanded value while driving.
Possible Cause UCS0062A
Harness or connectors
(Solenoid circuit is open or shorted.)
Pressure control solenoid valve B (Secondary pressure solenoid valve) system
Transmission fluid pressure sensor A (Secondary pressure sensor)
Line pressure control system
DTC Confirmation Procedure UCS0062B
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Make sure that output voltage of CVT fluid temperature sensor
is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage
(warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
3. Start engine and maintain the following conditions for at least 10
consecutive seconds.
VEHICLE SPEED (accelerate slowly): 0 50 km/h (31 MPH)
ACC PEDAL OPEN: 0.5/8 - 1.0/8
RANGE: “D” position
4. If DTC is detected, go to CVT-143, "Diagnostic Procedure" .
Item name Condition Display value (Approx.)
SEC PRESS “N” position idle 0.8 MPa
BCIA0031E
DTC P0868 SECONDARY PRESSURE DOWN
CVT-143
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Diagnostic Procedure UCS0062C
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC PRESS”.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-46, "Judgement of Line Pressure Test" .
3. DETECT MALFUNCTIONING ITEM
Check the following:
Pressure control solenoid valve B (Secondary pressure solenoid valve). Refer to CVT-128, "Component
Inspection" .
Pressure control solenoid valve A (Line pressure solenoid valve). Refer to CVT-117, "Component Inspec-
tion" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR) SYS-
TEM
Check transmission fluid pressure sensor A (secondary pressure sensor) system. Refer to CVT-129, "DTC
P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC PRESSURE SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
Check the following:
Power supply and ground circuit for TCM. Refer to CVT-146, "Wiring Diagram CVT POWER" .
The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
Item name Condition Display value (Approx.)
SEC PRESS “N” position idle 0.8 MPa
SCIA2366E
CVT-144
DTC P0868 SECONDARY PRESSURE DOWN
Revision: June 2006 2007 Versa
6. CHECK DTC
Perform CVT-142, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
CVT-145
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DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY) PFP:31036
Description UCS0062D
When the power supply to the TCM is cut OFF, for example because the battery is removed, and the self-diag-
nosis memory function stops, malfunction is detected.
NOTE:
Since “P1701 TCM-POWER SUPPLY” will be indicated when replacing TCM, perform diagnosis after
erasing “SELF-DIAG RESULTS”
On Board Diagnosis Logic UCS0062E
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P1701 TCM-POWER SUPPLY” with CONSULT-II is detected when TCM does
not receive the voltage signal from the battery power supply.
This is not a malfunction message. (Whenever shutting OFF a power supply to the TCM, this message
appears on the screen.)
Possible Cause UCS0062F
Harness or connectors
(Battery or ignition switch and TCM circuit is open or shorted.)
DTC Confirmation Procedure UCS0062G
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Wait for at least 2 consecutive seconds.
4. If DTC is detected, go to CVT-147, "Diagnostic Procedure" .
BCIA0031E
CVT-146
DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — POWER UCS0062H
BCWA0679E
DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
CVT-147
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Revision: June 2006 2007 Versa
TCM terminals data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0062I
1. CHECK DTC
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION”
with CONSULT-II.
3. Erase self-diagnostic results. Refer to CVT-32, "HOW TO
ERASE DTC (WITH CONSULT-II)" .
4. Turn ignition switch OFF, and wait for 5 seconds or more.
5. Start engine.
6. Confirm self-diagnostic results again. Refer to CVT-60, "SELF-
DIAGNOSTIC RESULT MODE" .
Is the P1701 TCM-POWER SUPPLY displayed?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK TCM POWER SOURCE, STEP 1
1. Turn ignition switch OFF.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
Terminal Wire color Item Condition Data (Approx.)
10 R Power supply
Battery voltage
—0 V
19 R Power supply
Battery voltage
—0 V
25 B Ground Always 0 V
28 Y Power supply
(memory back-up) Always Battery voltage
48 B Ground Always 0 V
BCIA0031E
Name Connector Terminal Condition Voltage
(Approx.)
Power supply
(memory back-
up) E32 28 - Ground Always Battery
voltage
SCIA4783E
CVT-148
DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
Revision: June 2006 2007 Versa
3. CHECK TCM POWER SOURCE, STEP 2
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between battery and TCM connector terminal 28
Harness for short or open between ignition switch and TCM connector terminal 10, 19
10 A fuse (No.49, located in the IPDM E/R)
20 A fuse (No.53, located in the IPDM E/R)
Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM connector terminals and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Name Connector Terminal Condition Voltage
(Approx.)
Power supply
E31
10 - Ground
Battery
voltage
0 V
Power supply 19 - Ground
Battery
voltage
0 V
Power supply
(memory
back-up)
E32 28 - Ground Always Battery
voltage
SCIA4784E
Name Connector Terminal Continuity
Ground E32 25 Yes
48
SCIA2671E
DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
CVT-149
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Revision: June 2006 2007 Versa
6. CHECK DTC
Perform CVT-145, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
CVT-150
DTC P1705 THROTTLE POSITION SENSOR
Revision: June 2006 2007 Versa
DTC P1705 THROTTLE POSITION SENSOR PFP:22620
Description UCS0062J
Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle
position sensor etc. The actuator sends a signal to the ECM, and ECM sends the signal to TCM with CAN
communication.
CONSULT-II Reference Value UCS0062K
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0062L
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P1705 TP SEN/CIRC A/T” with CONSULT-II is detected when TCM does not
receive the proper accelerator pedal position signals (input by CAN communication) from ECM.
Possible Cause UCS0062M
ECM
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation Procedure UCS0062N
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Depress accelerator pedal fully and release it, then wait for 5
seconds.
4. If DTC is detected, go to CVT-151, "Diagnostic Procedure" .
Item name Condition Display value (Approx.)
ACC PEDAL OPEN Released accelerator pedal - Fully depressed accelerator pedal 0.0/8 - 8.0/8
BCIA0031E
DTC P1705 THROTTLE POSITION SENSOR
CVT-151
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Diagnostic Procedure UCS0062O
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated?
YES >> Check the CAN communication line. Refer to CVT-68, "DTC U1000 CAN COMMUNICATION
LINE" .
NO >> GO TO 2.
2. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out the value of “ACC PEDAL OPEN”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK DTC WITH ECM
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ENGINE” with CON-
SULT-II. Refer to EC-116, "SELF-DIAG RESULTS MODE" .
OK or NG
OK >> GO TO 4.
NG >> Check the DTC Detected Item. Go to EC-116, "SELF-
DIAG RESULTS MODE" .
4. CHECK DTC
Perform CVT-150, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Item name Condition Display value (Approx.)
ACC PEDAL OPEN
Release accelerator
pedal.
Fully depressed acceler-
ator pedal
0.0/8
8.0/8
SCIA2277E
BCIA0030E
CVT-152
DTC P1722 ESTM VEHICLE SPEED SIGNAL
Revision: June 2006 2007 Versa
DTC P1722 ESTM VEHICLE SPEED SIGNAL PFP:47660
Description UCS0062P
The vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) to TCM by CAN com-
munication line.
CONSULT-II Reference Value UCS0062Q
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0062R
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P1722 ESTM VEH SPD SIG” with CONSULT-II is detected when TCM does not
receive the proper vehicle speed signal (input by CAN communication) from ABS actuator and electric
unit (control unit).
Possible Cause UCS0062S
Harness or connectors
(Sensor circuit is open or shorted.)
ABS actuator and electric unit (control unit)
DTC Confirmation Procedure UCS0062T
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and maintain the following conditions for at least 5
consecutive seconds.
ACC PEDAL OPEN: 1.0/8 or less
VEHICLE SPEED SE: 30 km/h (17 MPH) or more
4. If DTC is detected, go to CVT-153, "Diagnostic Procedure" .
Item name Condition Display value
ESTM VSP SIG During driving Approximately matches the speedometer reading.
VEHICLE SPEED
BCIA0031E
DTC P1722 ESTM VEHICLE SPEED SIGNAL
CVT-153
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Diagnostic Procedure UCS0062U
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated?
YES >> Check CAN communication line. Refer to CVT-68, "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform ABS actuator and electric unit (control unit) self-diagnosis check. Refer to BRC-20, "SELF-DIAGNO-
SIS" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “TRANSMISSION with CONSULT-II.
3. Drive vehicle and read out the value of “VEHICLE SPEED” and
“ESTM VSP SIG”.
4. Check if there is a great difference between the two values.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK TCM
Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-152, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ESTM VSP SIG During driving Approximately matches
the speedometer reading.
VEHICLE SPEED
SCIA4510E
CVT-154
DTC P1723 CVT SPEED SENSOR FUNCTION
Revision: June 2006 2007 Versa
DTC P1723 CVT SPEED SENSOR FUNCTION PFP:31907
Description UCS0062V
The input speed sensor (primary speed sensor) is included in the control valve assembly.
The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)] detects the revolution of
the parking gear and generates a pulse signal. The pulse signal is sent to the TCM, which converts it into
vehicle speed.
The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends a
signal to the TCM.
On Board Diagnosis Logic UCS0062W
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P1723 CVT SPD SEN/FNCTN” with CONSULT-II is detected when there is a
great difference between the vehicle speed signal and the secondary speed sensor signal.
CAUTION:
One of the “P0720 VEH SPD SEN/CIR AT”, the “P0715 INPUT SPD SEN/CIRC” or the “P0725 ENGINE
SPEED SIG“ is displayed with the DTC at the same time.
Possible Cause UCS0062X
Harness or connectors
(Sensor circuit is open or shorted.)
Output speed sensor (Secondary speed sensor)
Input speed sensor (Primary speed sensor)
Engine speed signal system
DTC Confirmation Procedure UCS0062Y
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VEHICLE SPEED SE: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-155, "Diagnostic Procedure" .
BCIA0031E
DTC P1723 CVT SPEED SENSOR FUNCTION
CVT-155
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Diagnostic Procedure UCS0062Z
1. CHECK STEP MOTOR FUNCTION
Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is a malfunction in the step motor function indicated in the results?
YES >> Repair or replace damaged parts. (Check the step motor function. Refer to CVT-168, "DTC P1778
STEP MOTOR - FUNCTION" .)
NO >> GO TO 2.
2. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR SYSTEM) AND INPUT SPEED
SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system and input speed sensor (primary speed sensor)
system. Refer to CVT-95, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)" ,
CVT-90, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK ENGINE SPEED SIGNAL SYSTEM
Check engine speed signal system. Refer to CVT-101, "DTC P0725 ENGINE SPEED SIGNAL" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts. Refer to EC-576, "IGNITION SIGNAL" .
4. DETECT MALFUNCTIONING ITEM
Check the following:
Power supply and ground circuit for TCM. Refer to CVT-145, "DTC P1701 TRANSMISSION CONTROL
MODULE (POWER SUPPLY)" .
The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-154, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace TCM or transaxle assembly. Refer to CVT-9, "Service After Replacing TCM and Tran-
saxle Assembly" , CVT-207, "Removal and Installation" .
CVT-156
DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM
Revision: June 2006 2007 Versa
DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM PFP:23710
Description UCS00630
Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle
position sensor etc. The actuator sends a signal to the ECM, and ECM sends the signal to TCM with CAN
communication.
On Board Diagnosis Logic UCS00631
This is not an OBD-II self-diagnostic item.
Diagnostic trouble code “P1726 ELEC TH CONTROL” with CONSULT-II is detected when the electroni-
cally controlled throttle for ECM is malfunctioning.
Possible Cause UCS00632
Harness or connectors
(Sensor circuit is open or shorted.)
DTC Confirmation Procedure UCS00633
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and let it idle for 5 second.
4. If DTC is detected, go to CVT-157, "Diagnostic Procedure" .
BCIA0031E
DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM
CVT-157
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Diagnostic Procedure UCS00634
1. CHECK DTC WITH ECM
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ENGINE” with CON-
SULT-II. Refer to EC-116, "SELF-DIAG RESULTS MODE" .
OK or NG
OK >> GO TO 2.
NG >> Check the DTC Detected Item. Refer to EC-116, "SELF-
DIAG RESULTS MODE" .
If CAN communication line is detected, go to CVT-68,
"DTC U1000 CAN COMMUNICATION LINE" .
2. CHECK DTC
Perform CVT-156, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
Check the following:
The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
NG >> Repair or replace damaged parts.
BCIA0030E
CVT-158
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
Revision: June 2006 2007 Versa
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT PFP:31941
Description UCS00635
The lock-up select solenoid valve is included in the control valve assembly.
The lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse
brake pressure).
When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON.
CONSULT-II Reference Value UCS00636
On Board Diagnosis Logic UCS00637
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P1740 LU-SLCT SOL/CIRC” with CONSULT-II is detected under the following
conditions.
When TCM compares target value with monitor value and detects an irregularity.
Possible Cause UCS00638
Lock-up select solenoid valve
Harness or connectors
(Solenoid circuit is open or shorted.)
DTC Confirmation Procedure UCS00639
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and maintain the following conditions for at least 5
consecutive seconds.
RANGE: “D” position and “N” position
(At each time, wait for 5 seconds.)
4. If DTC is detected, go to CVT-160, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
LUSEL SOL OUT
Selector lever in “P” and “N” positions ON
Wait at least for 5 seconds with the selector
lever in “R”, “D” and “L” positions OFF
BCIA0031E
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
CVT-159
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Wiring Diagram — CVT — L/USSV UCS0063A
BCWA0680E
CVT-160
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0063B
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “TRANSMISSION” with CONSULT-II.
3. Read out the value of “LUSEL SOL OUT”.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between TCM connector terminal and ground.
3. Turn ignition switch OFF.
4. Disconnect the TCM connector.
5. Check if there is continuity between connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Terminal Wire color Item Condition Data (Approx.)
4BR
Lock-up select
solenoid valve
Selector lever in “P” and “N” posi-
tions Battery voltage
Wait at least for 5 seconds with the
selector lever in “R”, “D” and “L”
positions
0 V
Item name Condition Display value
LUSEL SOL OUT
Selector lever in “P” and
N” positions ON
Wait at least for 5 seconds
with the selector lever in
R”, “D” and “L” positions OFF
Name Connector Terminal Condition Voltage
(Approx.)
Lock-up
select sole-
noid valve E31 4 - Ground
Selector lever in “P” and
“N positions
Battery
voltage
Wait at least for 5 sec-
onds with the selector
lever in “R”, “D” and “L”
positions
0 V
SCIA4512E
SCIA7955E
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
CVT-161
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2. CHECK LOCK-UP SELECT SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
4. CHECK HARNESS BETWEEN TCM AND LOCK-UP SELECT SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK DTC
Perform CVT-158, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
Solenoid valve Connector Terminal Resistance
(Approx.)
Lock-up select solenoid
valve E31 4 - Ground 5 - 20
SCIA4692E
Solenoid valve Connector Terminal Resistance
(Approx.)
Lock-up select solenoid valve F46 13 - Ground 5 - 20
SCIA4693E
Item Connector Terminal Continuity
TCM E31 4 Yes
CVT unit harness connector F46 13
SCIA4694E
CVT-162
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
Revision: June 2006 2007 Versa
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
Component Inspection UCS0063C
LOCK-UP SELECT SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Solenoid valve Connector Terminal Resistance
(Approx.)
Lock-up select solenoid valve F46 13 - Ground 5 - 20
SCIA4693E
DTC P1745 LINE PRESSURE CONTROL
CVT-163
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DTC P1745 LINE PRESSURE CONTROL PFP:31036
Description UCS0063D
The pressure control solenoid valve A (line pressure solenoid valve) regulates the oil pump discharge pres-
sure to suit the driving condition in response to a signal sent from the TCM.
On Board Diagnosis Logic UCS0063E
This is not an OBD-II self-diagnostic item.
Diagnostic trouble codeP1745 L/PRESS CONTROL” with CONSULT-II is detected when TCM detects
the unexpected line pressure.
Possible Cause UCS0063F
TCM
DTC Confirmation Procedure UCS0063G
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Make sure that output voltage of CVT fluid temperature sensor
is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage
(warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
3. If DTC is detected, go to CVT-163, "Diagnostic Procedure" .
Diagnostic Procedure UCS0063H
1. CHECK DTC
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-II.
3. Erase self-diagnostic results. Refer to CVT-63, "How to Erase Self-diagnostic Results" .
4. Turn ignition switch OFF, and wait for 10 seconds or more.
5. Start engine.
6. Confirm self-diagnostic results again. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is the P1745 L/PRESS CONTROL displayed?
YES >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
NO >> INSPECTION END
BCIA0031E
CVT-164
DTC P1777 STEP MOTOR - CIRCUIT
Revision: June 2006 2007 Versa
DTC P1777 STEP MOTOR - CIRCUIT PFP:31020
Description UCS0063I
The step motor is included in the control valve assembly.
The step motor changes the step with turning 4 coils ON/OFF according to the signal from TCM. As a
result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled
CONSULT-II Reference Value UCS0063J
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0063K
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P1777 STEP MOTR CIRC” with CONSULT-II is detected under the following
conditions.
When operating step motor ON and OFF, there is no proper change in the voltage of TCM terminal which
corresponds to it.
Possible Cause UCS0063L
Step motor
Harness or connectors
(Step motor circuit is open or shorted.)
DTC Confirmation Procedure UCS0063M
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Drive vehicle for at least 5 consecutive seconds.
3. If DTC is detected, go to CVT-166, "Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
STM STEP
During driving
20 step - 180 step
SMCOIL A
Changes ONOFF.
SMCOIL B
SMCOIL C
SMCOIL D
BCIA0031E
DTC P1777 STEP MOTOR - CIRCUIT
CVT-165
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Wiring Diagram — CVT — STM UCS0063N
BCWA0681E
CVT-166
DTC P1777 STEP MOTOR - CIRCUIT
Revision: June 2006 2007 Versa
TCM terminals data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS0063O
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “STM STEP”, “SMCOIL
A”, “SMCOIL B”, “SMCOIL C”, and “SMCOIL D”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK HARNESS BETWEEN TCM AND STEP MOTOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit connector and TCM connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between body ground and CVT assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Terminal Wire color Item Condition Data (Approx.)
11 L Step motor A Within 2 seconds after ignition switch ON, the time measure-
ment by using the pulse width measurement function (Hi level)
of CONSULT-II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diag-
nosis connector.
*1: A circuit tester cannot be used to test this item.
30.0 msec
12 Y Step motor B 10.0 msec
20 W Step motor C 30.0 msec
21 P Step motor D 10.0 msec
Item name Condition Display value (Approx.)
STM STEP
During driving
20 step - 180 step
SMCOIL A
Changes ONOFF.
SMCOIL B
SMCOIL C
SMCOIL D
SCIA4516E
Item Connector Terminal Continuity
TCM E31 11 Yes
CVT unit harness connector F46 6
TCM E31 12 Yes
CVT unit harness connector F46 7
TCM E31 20 Yes
CVT unit harness connector F46 8
TCM E31 21 Yes
CVT unit harness connector F46 9
SCIA4695E
DTC P1777 STEP MOTOR - CIRCUIT
CVT-167
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3. CHECK STEP MOTOR
Check step motor. Refer to CVT-167, "Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK DTC
Perform CVT-164, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection UCS0063P
STEP MOTOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector termi-
nals and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
Name Connector Terminal Resistance
(Approx.)
Step motor F46
6 - 7 30
8 - 9
6 - Ground
15
7 - Ground
8 - Ground
9 - Ground
SCIA4696E
CVT-168
DTC P1778 STEP MOTOR - FUNCTION
Revision: June 2006 2007 Versa
DTC P1778 STEP MOTOR - FUNCTION PFP:31947
Description UCS0063Q
The step motor is included in the control valve assembly.
The step motor's 4 aspects of ON/OFF change according to the signal from TCM. As a result, the flow of
line pressure to primary pulley is changed and pulley ratio is controlled.
This diagnosis item is detected when electrical system is OK, but mechanical system is NG.
This diagnosis item is detected when the state of the changing the speed mechanism in unit does not
operate normally.
CONSULT-II Reference Value UCS0063R
Remarks: Specification data are reference values.
On Board Diagnosis Logic UCS0063S
This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P1778 STEP MOTR/FNC” with CONSULT-II is detected under the following con-
ditions.
When not changing the pulley ratio according to the instruction of TCM.
Possible Cause UCS0063T
Step motor
DTC Confirmation Procedure UCS0063U
CAUTION:
Always drive vehicle at a safe speed.
Before starting “DTC Confirmation Procedure”, confirm “Hi” or “Mid” or “Low” fixation by “PRI
SPEED” and “VEHICLE SPEED” on “DATA MONITOR MODE”.
If hi-geared fixation occurred, go to CVT-169, "Diagnostic Procedure" .
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Make sure that output voltage of CVT fluid temperature sensor
is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage
(warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
3. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
4. Start engine and maintain the following conditions for at least 30
consecutive seconds.
TEST START FROM 0 km/h (0 MPH)
CONSTANT ACCELERATION: Keep 30 sec or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
5. If DTC is detected, go to CVT-169, "Diagnostic Procedure" .
Item name Condition Display value (Approx.)
STM STEP During driving 20 step - 180 step
GEAR RATIO 2.56 - 0.43
BCIA0031E
DTC P1778 STEP MOTOR - FUNCTION
CVT-169
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WITH GST
Follow the procedure “WITH CONSULT-II”.
Diagnostic Procedure UCS0063V
1. CHECK STEP MOTOR
With CONSULT-II
It is monitoring whether “GEAR RATIO: 2.56 - 0.43” changes similarly to “STM STEP: 20 - 180” by DATA
MONITOR mode. Refer to CVT-64, "DATA MONITOR MODE" .
Without CONSULT-II
Inspect the engine speed (rise and descend), vehicle speed, throttle position, and check shift change. Refer to
CVT-210, "Vehicle Speed When Shifting Gears" .
OK or NG
OK >> INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
CVT-170
OVERDRIVE CONTROL SWITCH
Revision: June 2006 2007 Versa
OVERDRIVE CONTROL SWITCH PFP:25130
Description UCS006XK
Overdrive control switch is installed to the selector lever.
O/D OFF indicator turns ON, and overdrive driving activates when pressing the overdrive control switch
while driving in “D” position. O/D OFF indicator turns OFF, and “D” position driving starts when pressing
the overdrive control switch while driving in the overdrive-off mode. Shifting the selector lever in any posi-
tion other than “D” releases the overdrive-off mode.
CONSULT-II Reference Value UCS006KP
Item name Condition Display value
SPORT MODE SW While pushing overdrive cancel switch ON
Other conditions OFF
OVERDRIVE CONTROL SWITCH
CVT-171
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Wiring Diagram — CVT — ODSW UCS006KQ
BCWA0686E
CVT-172
OVERDRIVE CONTROL SWITCH
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic Procedure UCS006KR
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated in the results?
YES >> Check CAN communication line. Refer to CVT-68, "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK OVERDRIVE CONTROL SWITCH SIGNAL
With CONSULT-II
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out ON/OFF switching action of the “SPORT MODE SW”.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. CHECK OVERDRIVE CONTROL SWITCH
Check overdrive control switch. Refer to CVT-174, "Component Inspection"
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SELF-DIAGNOSTIC RESULTS (COMBINATION METER)
Perform self-diagnosis check. Refer to DI-13, "Self-Diagnosis Mode of Combination Meter" .
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO - 1 >> With intelligent key: GO TO 5.
NO - 2 >> Without intelligent key: GO TO 6.
Terminal Wire
color Item Condition Data (Approx.)
5 L CAN-H
6 P CAN-L
Item name Condition Display value
SPORT MODE SW
While pushing overdrive
cancel switch ON
Other conditions OFF
SCIA4517E
OVERDRIVE CONTROL SWITCH
CVT-173
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5. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device connector and combination meter connector.
3. Check continuity between CVT device harness connector (A)
terminal and combination meter harness connector (B) terminal.
4. Check continuity between CVT device harness connector termi-
nal and ground.
5. If OK, check harness for short to ground and short to power.
6. Reinstall any part removed.
OK or NG
OK >> INSPECTION END
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
6. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device connector and combination meter connector.
3. Check continuity between CVT device harness connector (A)
terminal and combination meter harness connector (B) terminal.
4. Check continuity between CVT device harness connector termi-
nal and ground.
5. If OK, check harness for short to ground and short to power.
6. Reinstall any part removed.
OK or NG
OK >> INSPECTION END
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Item Connector Terminal Continuity
CVT device harness connector M38 1
Yes
Combination meter harness
connector M24 8
SCIA7949E
Item Connector Terminal Continuity
CVT device harness connector M38 2 - ground Yes
SCIA7950E
Item Connector Terminal Continuity
CVT device harness connector M38 1
Yes
Combination meter harness
connector M24 8
SCIA7951E
Item Connector Terminal Continuity
CVT device harness connector M38 2 - ground Yes
SCIA7952E
CVT-174
OVERDRIVE CONTROL SWITCH
Revision: June 2006 2007 Versa
Component Inspection UCS006KS
OVERDRIVE CONTROL SWITCH
With Intelligent Key
Check continuity between CVT device harness connector terminals.
Without Intelligent Key
Check continuity between CVT device harness connector terminals.
Item Condition Connector Terminal Continuity
Overdrive con-
trol switch
While pushing
overdrive con-
trol switch M38 1 - 2 Yes
Other conditions No
SCIA7942E
Item Condition Connector Terminal Continuity
Overdrive con-
trol switch
While pushing
overdrive con-
trol switch M38 1 - 2 Yes
Other conditions No
SCIA7943E
SHIFT POSITION INDICATOR CIRCUIT
CVT-175
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SHIFT POSITION INDICATOR CIRCUIT PFP:24810
Description UCS006XJ
TCM sends the switch signals to combination meter via CAN communication line. Then selector lever position
is indicated on the shift position indicator.
CONSULT-II Reference Value UCS00642
Diagnostic Procedure UCS00643
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-II and read
out the value of “RANGE”.
3. Check that the following three positions or indicators are same.
Actual position of the selector lever
“RANGE” on CONSULT-II screen
Shift position indicator in the combination meter
OK or NG
OK >> INSPECTION END
NG >> Check the following.
SHIFT POSITION INDICATOR SYMPTOM CHART
Item name Condition Display value
RANGE
Selector lever in “N” or “P” position. N·P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “L” position. L
Items Presumed location of trouble
Actual position does not change.
Park/neutral position switch
Refer to CVT-78, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
CVT main system (Fail-safe function actuated)
Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Shift position indicator in the combination meter does not indicate
any position. Perform the self-diagnosis for CVT and the combination meter.
Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" and
DI-5, "COMBINATION METERS" .
Actual position changes, but the shift position indicator in the
combination meter does not change.
Actual position differs from the shift position indicator in the com-
bination meter.
Shift position indicator in the combination meter does not indicate
specific position only.
Check the combination meter.
Refer to DI-5, "COMBINATION METERS" .
CVT-176
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
TROUBLE DIAGNOSIS FOR SYMPTOMS PFP:00007
Wiring Diagram — CVT — NONDTC UCS00644
BCWA0682E
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-177
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Revision: June 2006 2007 Versa
BCWA0683E
CVT-178
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
BCWA0684E
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-179
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CVT
Revision: June 2006 2007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Terminal Wire
color Item Condition Data (Approx.)
5 L CAN-H
6 P CAN-L
8V
Back-up lamp
relay
Selector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
13 G ROM assembly
14 Y ROM assembly
15 G ROM assembly
31 LG K-LINE
42 LG Sensor ground Always 0 V
46 O Sensor power
—5.0 V
—0 V
CVT-180
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
O/D OFF Indicator Lamp Does Not Come On UCS00645
SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds when turning ignition switch ON.
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the U1000 CAN COMM CIRCUIT indicated in the results?
YES >> Check CAN communication line. Refer to CVT-68, "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK TCM POWER SOURCE
1. Turn ignition switch ON.
2. Check voltage between TCM connector terminals and ground.
Refer to CVT-146, "Wiring Diagram CVT POWER" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between ignition switch and TCM connector terminal 10, 19
Refer to CVT-146, "Wiring Diagram CVT POWER" .
10 A fuse (No.49, located in the IPDM E/R). Refer to CVT-146, "Wiring Diagram CVT POWER" .
Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM connector terminals and ground.
Refer to CVT-146, "Wiring Diagram CVT POWER" .
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Name Connec-
tor Terminal Voltage (Approx.)
Power supply E31 10 Battery voltage
19 Battery voltage
SCIA4737E
Name Connec-
tor Terminal Continuity
Ground E32 25 Yes
48
SCIA2671E
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-181
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5. DETECT MALFUNCTIONING ITEM
Check the following.
Harness and fuse for short or open between ignition switch and O/D OFF indicator lamp
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK SYMPTOM
Check again. Refer to CVT-49, "Check before Engine Is Started" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK COMBINATION METERS
Check combination meters. Refer to DI-5, "COMBINATION METERS"
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Engine Cannot Be Started in “P” and “N” Position UCS00646
SYMPTOM:
Engine cannot be started with selector lever in “P” or “N” position.
Engine can be started with selector lever in “D”, “L” or “Rposition.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch circuit or start signal circuit?
YES >> Check PNP switch circuit or start signal circuit. Refer to CVT-78, "DTC P0705 PARK/NEUTRAL
POSITION SWITCH" or CVT-72, "DTC P0615 START SIGNAL CIRCUIT" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK STARTING SYSTEM
Check starting system. Refer to SC-10, "STARTING SYSTEM" .
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
CVT-182
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
In “P” Position, Vehicle Moves Forward or Backward When Pushed UCS00647
SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in “P” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch circuit?
YES >> Check PNP switch circuit. Refer to CVT-78, "DTC P0705 PARK/NEUTRAL POSITION SWITCH" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK SYMPTOM
Check again. Refer to CVT-49, "Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
In “N” Position, Vehicle Moves UCS00648
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch circuit?
YES >> Check PNP switch circuit. Refer to CVT-78, "DTC P0705 PARK/NEUTRAL POSITION SWITCH" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK SYMPTOM
Check again. Refer to CVT-49, "Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-183
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5. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
Large Shock “N” “R” Position UCS00649
SYMPTOM:
There is large shock when shifting from “N” to “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK ENGINE IDLE SPEED
Check the engine idle speed. Refer to EC-75, "Idle Speed and Ignition Timing Check" .
OK or NG
OK >> GO TO 3.
NG >> Repair.
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. SYMPTOM CHECK
Check again. Refer to CVT-49, "Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
CVT-184
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
Vehicle Does Not Creep Backward in “R” Position UCS0064A
SYMPTOM:
Vehicle does not creep backward when selecting “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. CHECK STALL REVOLUTION
Check stall revolution. Refer to CVT-43, "STALL TEST" .
OK or NG
OK >> GO TO 6.
NG >> Check the malfunctioning item. Refer to CVT-44, "Judgement Stall Test" .
6. CHECK SYMPTOM
Check again. Refer to CVT-49, "Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-185
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Revision: June 2006 2007 Versa
Vehicle Does Not Creep Forward in “D” or “L” Position UCS0064B
SYMPTOM:
Vehicle does not creep forward when selecting “D” or “L” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. CHECK STALL REVOLUTION
Check stall revolution. Refer to CVT-43, "STALL TEST" .
OK or NG
OK >> GO TO 6.
NG >> Check the malfunctioning item. Refer to CVT-44, "Judgement Stall Test" .
6. CHECK SYMPTOM
Check again. Refer to CVT-49, "Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
CVT-186
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
Vehicle Speed Does Not Change in “L” Position UCS006KE
SYMPTOM:
Vehicle speed does not change in “L” position while the cruise test.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. CHECK STALL REVOLUTION
Check stall revolution. Refer to CVT-43, "STALL TEST" .
OK or NG
OK >> GO TO 6.
NG >> Check the malfunctioning item. Refer to CVT-44, "Judgement Stall Test" .
6. CHECK SYMPTOM
Check again. Refer to CVT-50, "Cruise Test" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-187
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Vehicle Speed Does Not Change in overdrive-off mode UCS006KF
SYMPTOM:
Vehicle speed does not change in overdrive-off mode while the cruise test.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK OVERDRIVE CONTROL SWITCH
Check overdrive control switch. Refer to CVT-170, "OVERDRIVE CONTROL SWITCH" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. CHECK STALL REVOLUTION
Check stall revolution. Refer to CVT-43, "STALL TEST" .
OK or NG
OK >> GO TO 6.
NG >> Check the malfunctioning item. Refer to CVT-44, "Judgement Stall Test" .
6. CHECK SYMPTOM
Check again. Refer to CVT-50, "Cruise Test" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
CVT-188
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 2006 2007 Versa
Vehicle Speed Does Not Change in “D” Position UCS006KG
SYMPTOM:
Vehicle speed does not change in “D” position while the cruise test.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. CHECK STALL REVOLUTION
Check stall revolution. Refer to CVT-43, "STALL TEST" .
OK or NG
OK >> GO TO 6.
NG >> Check the malfunctioning item. Refer to CVT-44, "Judgement Stall Test" .
6. CHECK SYMPTOM
Check again. Refer to CVT-50, "Cruise Test" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-189
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Revision: June 2006 2007 Versa
Vehicle Does Not Decelerate by Engine Brake UCS0064H
SYMPTOM:
Engine brake does not operate when releasing the accelerator pedal while the cruise test.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-61, "Display Items List" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-16, "Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-45, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-46, "Judgement of Line Pressure Test" .
5. CHECK SYMPTOM
Check again. Refer to CVT-50, "Cruise Test" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.
CVT-190
TRANSMISSION CONTROL MODULE
Revision: June 2006 2007 Versa
TRANSMISSION CONTROL MODULE PFP:31036
Removal and Installation UCS006KZ
COMPONENTS
REMOVAL
1. Disconnect the battery negative terminal.
2. Disconnect the TCM harness connector (1) from the TCM (2).
Instrument lower finisher (3)
3. Remove the TCM (2).
INSTALLATION
Installation is in the reverse order of removal.
1. TCM
SCIA6963E
SCIA7167E
SHIFT CONTROL SYSTEM
CVT-191
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SHIFT CONTROL SYSTEM PFP:34901
Removal and Installation UCS0064I
CONTROL DEVICE COMPONENTS
1. Selector lever knob 2. Knob cover 3. Lock pin
4. Overdrive control switch 5. Knob finisher 6. Selector button
7. Selector button return spring 8. Position indicator plate 9. Position lamp
10. Dust cover 11. Bracket 12. Shift lock solenoid and park position
switch assembly
13. CVT device harness connector 14. Plate 15. Control device assembly
WCIA0638E
CVT-192
SHIFT CONTROL SYSTEM
Revision: June 2006 2007 Versa
CONTROL CABLE COMPONENTS
Refer to the figure below for control cable removal and installation procedure.
REMOVAL
CAUTION:
Make sure that parking brake is applied before removal and installation.
1. Place the selector lever in the “N” position.
2. Remove the center console assembly. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
3. Disconnect the CVT device harness connector (1).
4. Remove the key interlock cable from the control device assem-
bly. Refer to CVT-202, "Removal and Installation" .
5. Remove the bolts (A) from the control device assembly (1).
6. Remove exhaust front tube, center muffler and heat plates.
Refer to EM-21, "EXHAUST MANIFOLD" .
1. Selector lever knob 2. Control device assembly 3. Lock plate
4. Bracket 5. Control cable 6. Bracket
7. Lock plate 8. Bracket 9. Transaxle assembly
A. Floor
WCIA0639E
SCIA6965E
WCIA0609E
SHIFT CONTROL SYSTEM
CVT-193
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Revision: June 2006 2007 Versa
7. Remove the plate (1) from the control device assembly.
: Vehicle front
8. Remove the lock plate (1) from the control cable (2).
: Vehicle front
9. Remove the control cable (2) from the control device assembly.
10. Insert flat-bladed screwdrivers at points (A) and (B) as shown,
and press both tabs (E) and (F) at the front (C) and rear (D)
slightly toward the center of the control device assembly to
remove the control device assembly from the underside of the
vehicle.
: Vehicle front
SCIA6967E
SCIA6968E
SCIA6970E
CVT-194
SHIFT CONTROL SYSTEM
Revision: June 2006 2007 Versa
INSTALLATION
Installation is in the reverse order of removal.
When installing the control cable (1) to the control device
assembly (2), make sure that the control cable (1) is fully
pressed in with the ribbed surface (A) facing downward from the
vehicle.
: Vehicle front
After installation is completed, adjust and check the CVT posi-
tion. Refer to CVT-195, "Adjustment of CVT Position" and CVT-
196, "Checking of CVT Position" .
Control Device Disassembly and Assembly UCS006XP
DISASSEMBLY
NOTE:
Refer to CVT-191, "CONTROL DEVICE COMPONENTS" to disassemble.
1. Remove selector lever knob from control device assembly. Refer to CVT-195, "Selector Lever Knob
Removal and Installation" .
2. Remove position lamp from position indicator plate (1).
3. Insert a flat-bladed screwdriver to (A) (at 4 locations) as shown,
and bend each hook slightly to raise position indicator plate (1)
and remove from control device assembly (2).
4. Remove bracket from control device assembly (2).
5. Remove CVT device harness connector from control device
assembly (2).
6. Release tabs (A) on shift lock solenoid and park position switch
assembly from hooks (B) on control device assembly to shift
lock solenoid and park position switch assembly.
ASSEMBLY
Assembly is in the reverse order of disassembly.
SCIA6253E
SCIA6969E
SCIA6977E
SHIFT CONTROL SYSTEM
CVT-195
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CVT
Revision: June 2006 2007 Versa
Selector Lever Knob Removal and Installation UCS006XQ
REMOVAL
CAUTION:
Make sure that parking brake is applied before removal/installation.
1. Set selector lever knob (1) in “N” position.
2. Slide knob cover (2) downward.
3. Pull out lock pin (3) from selector lever knob (1).
4. Remove selector lever knob (1) and knob cover (2) as a set from
selector lever.
CAUTION:
Do not push selector button.
INSTALLATION
1. Insert lock pin (1) to selector lever knob (2).
2. Install knob cover (3) to selector lever knob (2).
3. Set selector lever in “N” position.
4. Install selector lever knob over selector lever until a click is felt.
CAUTION:
Do not tilt selector lever knob when installing. Install it
straight, and do not tap or apply any shock to install it.
Do not push selector button.
Adjustment of CVT Position UCS0064J
CAUTION:
Make sure that parking brake is applied before adjustment.
1. Loosen the control cable nut (A) and place the manual lever (1)
in “P” position.
2. Place selector lever in “P” position.
3. Push the control cable (2) in with a load of 9.8 N (approximately
1 kg, 2.2 lb). Release the control cable and temporarily tighten
the control cable nut.
NOTE:
Do not move the manual lever. Make sure the manual lever
stays in the “Pposition.
4. Tighten the control cable nut.
CAUTION:
Secure the manual lever when tightening nut.
5. Check the operation of the CVT. Refer to CVT-196, "Checking of CVT Position" .
SCIA6971E
SCIA6972E
Control cable nut: Refer to CVT-192, "CON-
TROL CABLE COMPO-
NENTS" .
WCIA0608E
CVT-196
SHIFT CONTROL SYSTEM
Revision: June 2006 2007 Versa
Checking of CVT Position UCS0064K
1. Place selector lever in “P” position, and turn ignition switch ON. (Do not start engine.)
2. Make sure selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
make sure selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check that the actual position of the selector lever matches the position shown by the shift
position indicator and the manual lever on the transaxle.
5. The method of operating the selector lever to individual posi-
tions correctly should be as shown.
(A): Press selector button to operate selector lever, while
depressing the brake pedal.
(B): Press selector button to operate selector lever.
(C): Selector lever can be operated without pressing selector
button.
6. Confirm the back-up lamps illuminate only when selector lever is
placed in the “R” position. Confirm the back-up lamps do not illu-
minate when the selector lever is pushed toward theR” position
side with the gear position remained in theP” or “N” position.
7. Confirm the engine can only be started with the selector lever in the “P” and “N” positions.
8. Make sure transaxle is locked completely in “P” position.
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CVT SHIFT LOCK SYSTEM
CVT-197
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CVT SHIFT LOCK SYSTEM PFP:00000
Description UCS0064L
The mechanical key interlock mechanism also operates as a shift lock:
With the ignition switch turned to ON, selector lever cannot be shifted from “P” position to any other posi-
tion unless brake pedal is depressed.
With the key removed, selector lever cannot be shifted from “P” position to any other position.
The key cannot be removed unless selector lever is placed in “P” position.
The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside key cylinder, respectively.
Shift Lock System Electrical Parts Location UCS0064M
1. Key interlock cable 2. Key cylinder 3. Stop lamp switch
4. Brake pedal 5. Shift lock release button 6. Key interlock cable
7. Shift lock solenoid 8. Park position switch
BCIA0034E
CVT-198
CVT SHIFT LOCK SYSTEM
Revision: June 2006 2007 Versa
Wiring Diagram — CVT — SHIFT UCS0064N
BCWA0685E
CVT SHIFT LOCK SYSTEM
CVT-199
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Diagnostic Procedure UCS006KN
SYMPTOM 1:
Selector lever cannot be moved from “P” position with ignition switch in ON position and brake
pedal depressed.
Selector lever can be moved from “P” position with ignition key in ON position and brake pedal
released.
Selector lever can be moved from “P” position when ignition switch is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to “P” position.
Ignition key can be removed when selector lever is set to any position except “P” position.
1. CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to AT-239, "Removal and Installation" .
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-196, "Checking of CVT Position" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to CVT-195, "Adjustment of CVT Position" .
3. CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH
1. Turn ignition switch ON. (Do not start engine.)
2. Selector lever is set in “P” position.
3. Check operation sound.
OK or NG
OK >> INSPECTION END
NG - 1 >> With intelligent key: GO TO 4.
NG - 2 >> Without intelligent key: GO TO 5.
4. CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between CVT device harness connector terminal
5 and ground.
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
Condition Brake pedal Operation sound
When ignition switch is turned to ON position and selector lever is set in
“P” position.
Depressed Yes
Released No
Voltage:
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA7934E
CVT-200
CVT SHIFT LOCK SYSTEM
Revision: June 2006 2007 Versa
5. CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between CVT device harness connector terminal
5 and ground.
OK or NG
OK >> GO TO 9.
NG >> GO TO 6.
6. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch harness connector
terminals 3 and 4.
Check stop lamp switch after adjusting brake pedal. Refer to
BR-6, "BRAKE PEDAL" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. DETECT MALFUNCTIONING ITEM
Check the following. If any items are damaged, repair or replace damaged parts.
Harness for short or open between ignition switch and stop lamp switch harness connector
Harness for short or open between stop lamp switch harness connector and CVT device harness connec-
tor
10A fuse [No.3, located in the fuse block (J/B)]
Ignition switch, Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Voltage:
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA7935E
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No
SCIA2126E
CVT SHIFT LOCK SYSTEM
CVT-201
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8. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device harness connector.
3. Check continuity between CVT device harness connector termi-
nal 6 and ground.
4. Connect CVT device harness connector.
OK or NG
OK >> Replace shift lock solenoid and park position switch
assembly.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
9. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device harness connector.
3. Check continuity between CVT device harness connector termi-
nal 6 and ground.
4. Connect CVT device harness connector.
OK or NG
OK >> Replace shift lock solenoid and park position switch
assembly.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Continuity should exist.
SCIA7936E
Continuity should exist.
SCIA7937E
CVT-202
KEY INTERLOCK CABLE
Revision: June 2006 2007 Versa
KEY INTERLOCK CABLE PFP:34908
Removal and Installation UCS006XR
COMPONENTS
REMOVAL
Refer to the figure for key interlock cable removal procedure.
CAUTION:
Make sure that parking brake is applied before removal/installation.
1. Place the selector lever in the “N” position.
2. Remove the selector lever knob. Refer to CVT-195, "Selector Lever Knob Removal and Installation" .
3. Remove the center console assembly. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
1. Key interlock cable 2. Key cylinder 3. Control device assembly
A. Lock plate B. Holder C. Clip
D. Slider E. Key interlock rod F. Adjust holder
G. Casing cap
WCIA0621E
KEY INTERLOCK CABLE
CVT-203
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4. Slide the slider (A) toward the casing cap (B) while pressing tabs
(C) on the slider to separate the slider (A) from the adjust holder
(D).
5. Remove the casing cap (B) from the cable bracket on the control
device assembly.
6. Remove the key interlock cable from the key interlock rod (E).
7. Remove steering column cover (upper and lower) and instru-
ment lower finisher. Refer to IP-10, "INSTRUMENT PANEL
ASSEMBLY" .
8. Pull out the lock plate (A) from the holder (B).
9. Remove the key interlock cable (1) from the key cylinder (2).
10. Remove the clip (A), and then remove the key interlock cable
(1).
INSTALLATION
CAUTION:
Install key interlock cable in such a way that it will not be damaged by sharp bends, twists or inter-
ference with adjacent parts.
After installing key interlock cable to control device assembly, make sure that casing cap and
bracket are firmly secured in their positions.
1. Place the selector lever in the “P” position.
2. Turn ignition switch to “ACC” or “ON” position.
3. Set the key interlock cable (1) to the key cylinder (2).
4. Install the lock plate (A) to the holder (B).
5. Turn ignition switch to “LOCK” position.
SCIA6975E
SCIA6976E
SCIA6973E
SCIA6976E
CVT-204
KEY INTERLOCK CABLE
Revision: June 2006 2007 Versa
6. Temporarily install the adjust holder (A) to the key interlock rod
(B).
7. Install the casing cap (C) to the cable bracket (D) on the control
device assembly.
CAUTION:
Do not bend or twist key interlock cable excessively
when installing.
After installing key interlock cable to cable bracket (D) on
control device assembly, make sure casing caps (C) is
firmly secured in cable bracket (D) on control device
assembly.
If casing cap (C) is loose [less than 39.2 N (4.0 kg, 8.8 lb) removing force], replace key interlock
cable.
8. Slide the slider (A) toward the key interlock rod (D) while press-
ing the pull lock (B) down to securely connect the adjust holder
(C) with the key interlock rod (D).
CAUTION:
Do not press tabs when holding slider (A).
Do not apply any side to side force to key interlock rod
(D) when sliding slider (A).
9. Secure the key interlock cable (1) with the clip (A).
10. Install steering column cover (upper and lower) and instrument
lower finisher. Refer to IP-10, "INSTRUMENT PANEL ASSEM-
BLY" .
11. Install the center console assembly. Refer to IP-10, "INSTRU-
MENT PANEL ASSEMBLY" .
12. Install the selector lever knob. Refer to CVT-195, "Selector
Lever Knob Removal and Installation" .
13. Check shift lock system. Refer to CVT-197, "Description" .
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SCIA6978E
SCIA6973E
AIR BREATHER HOSE
CVT-205
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AIR BREATHER HOSE PFP:31098
Removal and Installation UCS0064R
REMOVAL
1. Remove air duct (inlet), air duct and air cleaner case. Refer to EM-16, "AIR CLEANER AND AIR DUCT" .
2. Remove air breather hose.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Make sure air breather hose is not collapsed or blocked due to folding or bending when installed.
NOTE:
Install the air breather hose (1) to the air breather tube (2) so
that the paint mark (A) faces upward. Also make sure the air
breather hose end is pushed up to the tube bend portion.
When installing air breather hose (1) to air duct and air cleaner
case, make sure to fully insert the hose clips.
1. Air cleaner case 2. Air duct 3. Clip
4. Air breather hose 5. Air breather tube 6. CVT
WCIA0612E
WCIA0613E
CVT-206
DIFFERENTIAL SIDE OIL SEAL
Revision: June 2006 2007 Versa
DIFFERENTIAL SIDE OIL SEAL PFP:33111
Removal and Installation UCS0064S
COMPONENTS
REMOVAL
1. Remove drive shaft assembly. Refer to FAX-8, "FRONT DRIVE
SHAFT" .
2. Remove differential side oil seal using a suitable tool.
CAUTION:
Do not scratch transaxle case or converter housing.
INSTALLATION
1. Drive the new differential side oil seal into the transaxle case
side (B) and converter housing side (C) until it is flush using tool.
Unit: mm (in)
CAUTION:
Do not reuse differential side oil seals.
Apply specified NISSAN CVT fluid to side oil seals.
2. Install drive shaft assembly. Refer to FAX-8, "FRONT DRIVE SHAFT" .
3. Check CVT fluid level and leakage. Refer to CVT-16, "Checking CVT Fluid" .
1. CVT 2. Differential side oil seal : Apply CVT Fluid NS-2.
WCIA0610E
SCIA2412E
Tool number (Kent-Moore No.) — (J-47244)
ST33400001 (J-47005)
Dimensions A 0±0.5 (0±0.020)
WCIA0611E
TRANSAXLE ASSEMBLY
CVT-207
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Revision: June 2006 2007 Versa
TRANSAXLE ASSEMBLY PFP:32020
Removal and Installation UCS0064V
COMPONENTS
REMOVAL
1. Remove the engine and transaxle as an assembly. Refer to EM-73, "Removal and Installation" .
2. Disconnect the secondary speed sensor connector (A) and CVT
unit connector (B). Refer to CVT-11, "Removal and Installation
Procedure for CVT Unit Connector" .
3. Remove the harness from the transaxle.
1. CVT fluid level gauge 2. CVT fluid charging pipe 3. O-ring
4. Copper washer 5. Fluid cooler tube 6. Transaxle assembly
7. Engine mounting bracket (LH) 8. Air breather hose A. Refer to CVT-208, "INSTALLA-
TION" .
WCIA0614E
WCIA0615E
CVT-208
TRANSAXLE ASSEMBLY
Revision: June 2006 2007 Versa
4. Remove the four drive plate to torque converter nuts.
NOTE:
Rotate the crankshaft clockwise as viewed from front of engine
for access to drive plate to torque converter nuts.
5. Put matching marks on the drive plate and torque converter alignment stud.
CAUTION:
For matching marks, use paint. Never damage the drive plate or torque converter.
6. Remove the transaxle to engine and engine to transaxle bolts.
7. Separate the transaxle from the engine.
8. If necessary, remove the following from the transaxle:
CVT fluid charging pipe
Engine mounting bracket (LH)
Fluid cooler tubes
Air breather hose
Any necessary brackets
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
When replacing an engine or transmission you must make sure any dowels are installed correctly
during re-assembly.
Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive
train components.
Do not reuse O-rings and copper washers.
When turning crankshaft, turn it clockwise as viewed from the front of the engine.
When tightening the nuts for the torque converter while securing the crankshaft pulley bolt, be
sure to confirm the tightening torque of the crankshaft pulley bolt. Refer to EM-37, "TIMING
CHAIN" .
After converter is installed to drive plate, rotate crankshaft several turns to check that transaxle
rotates freely without binding.
When installing the torque converter to the transaxle measure
distance A.
WCIA0616E
Distance A: 14.4 mm (0.57 in) or more
WCIA0617E
TRANSAXLE ASSEMBLY
CVT-209
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When installing the cooler outlet tube (1) to the transaxle assem-
bly (2), align the cooler tube bracket (A) against the transaxle as
shown.
When installing the transaxle to the engine, align the matching mark on the drive plate with the matching
mark on the torque converter alignment stud.
When securing the transaxle to the engine, attach the bolts in
accordance with the following standard.
When installing the drive plate to torque converter nuts, tighten
them temporarily. Then tighten the nuts to the specified torque.
After completing installation check for fluid level, fluid leakage, and the positions of CVT. Refer to CVT-16,
"Checking CVT Fluid" , CVT-195, "Adjustment of CVT Position" and CVT-196, "Checking of CVT Posi-
tion" .
When replacing the CVT assembly, erase EEP ROM in TCM. Refer to CVT-9, "Service After Replacing
TCM and Transaxle Assembly" .
WCIA0618E
Bolt No. 1 (Transaxle to engine) 2 (Engine to transaxle)
Number of bolts 2 7
Bolt length
“A” mm (in) 55 (2.17) 50 (1.97)
Tightening torque
N·m (kg-m, ft-lb) 62 (6.3, 46)
WCIA0619E
Converter nuts: : 51 N·m (5.2 kg-m, 38 ft-lb)
WCIA0616E
CVT-210
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: June 2006 2007 Versa
SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030
General Specifications UCS0064W
*1: Refer to MA-11, "Fluids and Lubricants" .
Vehicle Speed When Shifting Gears UCS0064X
Numerical value data are reference values.
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).
Stall Speed UCS0064Y
Line Pressure UCS0064Z
*: Reference values
Solenoid Valves UCS00650
Applied model MR18DE engine
CVT model RE0F08A
CVT assembly Model code number 1XB6B
Transmission gear ratio
“D” position Variable
Reverse 2.689
Final drive 5.473
Recommended fluid NISSAN CVT Fluid NS-2*1
Fluid capacity 8.3 liter (8-3/4 US qt, 7-1/4 Imp qt)
CAUTION:
Use only Genuine NISSAN CVT Fluid NS-2. Do not mix with other fluid.
Using CVT fluid other than Genuine NISSAN CVT Fluid NS-2 will deteriorate in driveability and CVT durability, and may
damage the CVT, which is not covered by the warranty.
Engine type Throttle position Shift pattern Engine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
MR18DE
8/8 “D” position
Overdrive-off mode
“L” position
3,600 - 4,400 4,400 - 5,200
2/8
“D” position 1,400 - 2,400 1,500 - 2,500
Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,200 - 4,000 3,900 - 4,700
Stall speed 2,300 - 3,200 rpm
Engine speed Line pressure kPa (kg/cm2 , psi)
R”, “D” and “L” positions
At idle 650 (6.63, 94.3)
At stall 4,250 (43.35, 616.3)*
Name Resistance (Approx.) Terminal
Pressure control solenoid valve B (secondary
pressure solenoid valve) 2.5 - 5.0
3
Pressure control solenoid valve A (line pressure
solenoid valve) 2
Torque converter clutch solenoid valve 5 - 20 12
Lock-up select solenoid valve 13
SERVICE DATA AND SPECIFICATIONS (SDS)
CVT-211
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CVT
Revision: June 2006 2007 Versa
CVT Fluid Temperature Sensor UCS00651
Primary Speed Sensor UCS00652
Secondary Speed Sensor UCS00653
Removal and Installation UCS00654
Name Condition CONSULT-II “DATA MONITOR” (Approx.) Resistance (Approx.)
ATF TEMP SEN 20°C (68°F) 2.0 V 6.5 k
80°C (176°F) 1.0 V 0.9 k
Name Condition Data (Approx.)
Primary speed sensor When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz
Name Condition Data (Approx.)
Secondary speed sensor When driving [“D” position, 20 km/h (12 MPH)]. 570 Hz
Distance between end of converter housing and torque converter 14.4 mm (0.57 in) or more
CVT-212
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: June 2006 2007 Versa

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