CVT

User Manual: CVT

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C TRANSMISSION/TRANSAXLE

SECTION

CVT

CONTENTS
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-TENSIONER” .................................................................. 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-

Revision: June 2006

DURE .................................................................. 19
CVT FLUID COOLER INSPECTION PROCEDURE .................................................................. 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-1

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
Revision: June 2006

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 (SECONDARY SPEED SENSOR) .....................................95
Description ..............................................................95
CONSULT-II Reference Value .................................95
On Board Diagnosis Logic ......................................95
Possible Cause .......................................................95
DTC Confirmation Procedure ..................................95

CVT-2

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
Revision: June 2006

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-3

2007 Versa

CVT

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
Revision: June 2006

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-4

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” Position ....................................................................... 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

Revision: June 2006

CVT-5

2007 Versa

INDEX FOR DTC
INDEX FOR DTC
Alphabetical Index

PFP:00024
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 .
DTC
OBD-II

Except OBD-II

CONSULT-II
GST*1

CONSULT-II only
“TRANSMISSION”

A/T TCC S/V FNCTN

P0744

ATF TEMP SEN/CIRC

Items
(CONSULT-II screen terms)

Reference page

CVT-110

P0710

CVT-85

BELT DAMG

—

P0730

CVT-103

BRAKE SW/CIRC

—

P0703

CVT-76

CAN COMM CIRCUIT

U1000

CVT-68

CONTROL UNIT(CAN)

U1010

CVT-71

CVT SPD SEN/FNCTN

—

P1723

CVT-154

ENGINE SPEED SIG

—

P0725

CVT-101

ELEC TH CONTROL

—

P1726

CVT-156

—

P1722

CVT-152

P0715

CVT-90

L/PRESS CONTROL

—

P1745

CVT-163

L/PRESS SOL/CIRC

P0745

CVT-113

LU-SLCT SOL/CIRC

P1740

CVT-158

PNP SW/CIRC

P0705

CVT-78

—

P0841

CVT-134

PRS CNT SOL/A FCTN

P0746

CVT-118

PRS CNT SOL/B CIRC

P0778

CVT-124

PRS CNT SOL/B FCTN

P0776

CVT-121

—

P0868

CVT-142

ESTM VEH SPD

SIG*2

INPUT SPD SEN/CIRC

PRESS SEN/FNCTN

SEC/PRESS DOWN
STARTER RELAY/CIRC

—

P0615

CVT-72

STEP MOTR CIRC

P1777

CVT-164

STEP MOTR/FNC

P1778

CVT-168

TCC SOLENOID/CIRC

P0740

CVT-105

TCM-POWER SUPPLY

—

P1701

CVT-145

TP SEN/CIRC A/T

—

P1705

CVT-150

TR PRS SENS/A CIRC

P0840

CVT-129

TR PRS SENS/B CIRC

P0845

CVT-137

VEH SPD SEN/CIR AT

P0720

CVT-95

*1: These numbers are prescribed by SAE J2012.
*2: Models without ABS does not indicate.

Revision: June 2006

CVT-6

2007 Versa

INDEX FOR DTC
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 .

DTC
OBD-II

Except OBD-II

CONSULT-II
GST*1

CONSULT-II only
“TRANSMISSION”

—

P0615

STARTER RELAY/CIRC

CVT-72

—

P0703

BRAKE SW/CIRC

CVT-76

P0705

PNP SW/CIRC

CVT-78

P0710

ATF TEMP SEN/CIRC

CVT-85

P0715

INPUT SPD SEN/CIRC

CVT-90

P0720

VEH SPD SEN/CIR AT

CVT-95

—

P0725

ENGINE SPEED SIG

CVT-101

—

P0730

BELT DAMG

CVT-103

P0740

TCC SOLENOID/CIRC

CVT-105

P0744

A/T TCC S/V FNCTN

CVT-110

Items
(CONSULT-II screen terms)

Reference page

CVT

P0745

L/PRESS SOL/CIRC

CVT-113

P0746

PRS CNT SOL/A FCTN

CVT-118

P0776

PRS CNT SOL/B FCTN

CVT-121

P0778

PRS CNT SOL/B CIRC

CVT-124

P0840

TR PRS SENS/A CIRC

CVT-129

—

P0841

PRESS SEN/FNCTN

CVT-134

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*2

CVT-152

—

P1723

CVT SPD SEN/FNCTN

CVT-154

—

P1726

ELEC TH CONTROL

CVT-156

P1740

LU-SLCT SOL/CIRC

CVT-158

—

P1745

L/PRESS CONTROL

CVT-163

P1777

STEP MOTR CIRC

CVT-164

P1778

STEP MOTR/FNC

CVT-168

U1000

CAN COMM CIRCUIT

CVT-68

U1010

CONTROL UNIT(CAN)

CVT-71

*1: These numbers are prescribed by SAE J2012.
*2: Models without ABS does not indicate.

Revision: June 2006

CVT-7

2007 Versa

PRECAUTIONS
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 Manual.
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 performed by an authorized NISSAN/INFINITI dealer.
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal 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.

2.
3.
4.
5.
6.

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
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.
Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
Perform the necessary repair operation.
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.)
Perform a self-diagnosis check of all control units using CONSULT-II.

Revision: June 2006

CVT-8

2007 Versa

PRECAUTIONS
Precautions for On Board Diagnostic (OBD) System of CVT and Engine

UCS005XG

A
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- B
nal before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid 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 CVT
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 D
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, E
etc.
●
Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
F

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.
TCM

CVT assembly

Service pattern
CVT-9, "PATTERN A"

Replace the new unit.

Do not replace the unit.

Replace the new or old unit.

Replace the old unit.

Do not replace the unit.

J
CVT-9, "PATTERN B"

Replace the new or old unit.
Replace the new unit.

Replace the new or old unit.

CVT-11, "PATTERN C"

NOTE:
Old unit means that the unit has been already used for another vehicle.

PATTERN A
1.
2.

Shift the selector lever to “P” position after replacing TCM. Turn the ignition switch ON.
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.
2.
3.

4.
5.

Turn the ignition switch ON after replacing each part.
Connect CONSULT-II connector to data link connector. Refer to GI-38, "CONSULT-II Start Procedure" .
Start engine.
CAUTION:
Do not start the driving.
Touch CONSULT-II screen in the order of “START (NISSAN BASED VHCL)”, “TRANSMISSION”, “DATA
MONITOR”, and “MAIN SIGNALS”.
Warm up the transaxle assembly until “ATF TEMP” indicates 48 (approximately 20°C) or more. Turn the
ignition switch OFF.

Revision: June 2006

CVT-9

2007 Versa

PRECAUTIONS
6.

7.
8.
9.
10.
11.
12.
13.

14.
15.

16.
17.

Turn the ignition switch ON.
CAUTION:
Do not start engine.
Select “SELF-DIAG RESULTS”.
Shift the selector lever to “R” position.
Depress slightly the accelerator pedal (Pedal angle: 2/8) while depressing the brake pedal.
Perform “ERASE”.
Shift the selector lever to “R” position after replacing TCM. Turn the ignition switch OFF.
Wait approximately 10 minutes after turning the ignition switch OFF.
Turn the ignition switch ON while shifting the selector lever to “R” position.
CAUTION:
Do not start engine.
Select “CALIBRATION DATA”.
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.
Shift the selector lever to “P” position.
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 MODULE (POWER SUPPLY)" .

Revision: June 2006

CVT-10

2007 Versa

PRECAUTIONS
Calibration Data
A

CVT

J
SCIA7411E

PATTERN C
1.
2.

Replace the transaxle assembly first, and then replace TCM.
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

L
UCS005XI

REMOVAL
Rotate bayonet ring counterclockwise, pull out CVT unit harness
connector upward and disconnect it.

SCIA2096E

Revision: June 2006

CVT-11

2007 Versa

PRECAUTIONS
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.

SCIA2097E

Rotate bayonet ring clockwise until CVT unit harness connector
terminal body marking is aligned with the bayonet ring marking
(linear slit) as shown.

SCIA2098E

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.

SCIA2099E

Revision: June 2006

CVT-12

2007 Versa

PRECAUTIONS
Precautions

UCS005XJ

NOTE:
If any malfunction occurs in the RE0F08A model transaxle, replace the entire transaxle assembly.
●
Before connecting or disconnecting the TCM harness connector, turn ignition switch OFF and disconnect negative
battery cable. Because battery voltage is applied to TCM
even if ignition switch is turned OFF.

CVT

SEF289H

●

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.

H
SEF291H

●

Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not. CVT-54, "TCM INSPECTION TABLE".

MEF040DA

●

●
●
●

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.

SEF217U

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" .

Revision: June 2006

CVT-13

2007 Versa

PRECAUTIONS
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 memories.
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 slidelocking type harness connector. For description and how to disconnect, refer to PG-68, "HARNESS CONNECTOR" .
●

Revision: June 2006

CVT-14

2007 Versa

PREPARATION
PREPARATION
Special Service Tools

PFP:00002

A
UCS005XL

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Description
Tool number
(Kent-Moore No.)
Tool name

Measuring line pressure

—
(OTC3492)
Oil pressure gauge set

CVT

D
SCIA7531E

Installing differential side oil seal

—
(J-47244)
Drift

●

Transaxle case side (left)

a: 65.83 mm (2.59 in) dia.
b: 53.85 mm (2.12 in) dia.

SCIA5777E

G
Installing differential side oil seal

ST33400001
(J-47005)
Drift

●

Converter housing side (right)

a: 69.85 mm (2.75 in) dia.
b: 49.53 mm (1.95 in) dia.

SCIA5777E

Commercial Service Tools

UCS006XI

Tool number
Tool name

Description

Power tool

Loosening nuts and bolts

L
PBIC0190E

Revision: June 2006

CVT-15

2007 Versa

CVT FLUID
CVT FLUID
Checking CVT Fluid

PFP:KLE50
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.
SMA146B

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 charging pipe.

SCIA1933E

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.

SCIA1931E

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.
Fluid grade:

Refer to MA-11, "Fluids and Lubricants" .

CAUTION:
● Only use specified NISSAN CVT fluid.
● Do not overfill the CVT.
SCIA1932E

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.

Revision: June 2006

CVT-16

2007 Versa

CVT FLUID
FLUID CONDITION CHECK
A
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.

CVT

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

Changing CVT Fluid

UCS005XO

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)
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.

●
●
●

Fluid capacity and grade:

Refer to MA-11, "Fluids
and Lubricants" .

H
SCIA6088E

CAUTION:
Only use the specified NISSAN CVT fluid.
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.
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" .

Revision: June 2006

CVT-17

2007 Versa

CVT FLUID
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.
2.
3.

Identify the CVT inlet and outlet fluid cooler hoses.
Position an oil pan under the inlet and outlet cooler hoses.
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.
Allow any CVT fluid that remains in the cooler hoses to drain into
the oil pan.

SCIA4421E

7.
8.
9.

10.
11.
12.
13.

Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler outlet 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.
SCIA4422E
Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the
cooler inlet hose for 5 seconds.
Insert the tip of an air gun into the end of the cooler outlet hose.
Wrap a shop rag around the air gun tip and of the cooler outlet
hose.
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.
Repeat steps 5 through 9 three additional times.
Position an oil pan under the banjo bolts that connect the CVT
fluid cooler steel lines to the transaxle.
Remove the banjo bolts.
Flush each steel line from the cooler side back toward the transaxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.

SCIA4423E

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" .
Revision: June 2006

CVT-18

2007 Versa

CVT FLUID
CVT FLUID COOLER DIAGNOSIS PROCEDURE
A
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.
B
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 outCVT
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
D
● Spray Transmission Cooler Cleaner only with adequate
ventilation.
E
● Avoid contact with eyes and skin.
● Do not breath vapors or spray mist.
SCIA4421E
4. Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the F
cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.
G

I
SCIA4424E

6.
7.

Insert the tip of an air gun into the end of the cooler outlet hose.
Wrap a shop rag around the air gun tip and end of cooler outlet
hose.

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 PROCEDURE" .

M
SCIA4425E

Revision: June 2006

CVT-19

2007 Versa

CVT FLUID
CVT FLUID COOLER INSPECTION PROCEDURE
1.
a.

Inspect the coffee filter for debris.
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.

SCIA2967E

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.

SCIA7031E

CVT FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.

Revision: June 2006

CVT-20

2007 Versa

CVT SYSTEM
CVT SYSTEM
Cross-sectional View - RE0F08A

PFP:31036

A
UCS005XQ

CVT

SCIA8015E

Converter housing

Oil pump

Forward clutch

Reverse brake

Planetary carrier

Primary pulley

Steel belt

Sun gear

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

Revision: June 2006

CVT-21

2007 Versa

CVT SYSTEM
Control System

UCS005XR

SCIA7953E

Revision: June 2006

CVT-22

2007 Versa

CVT SYSTEM
Hydraulic Control System

UCS005XS

CVT

J
SCIA1807E

Revision: June 2006

CVT-23

2007 Versa

CVT SYSTEM
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.
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

CONTROL SYSTEM DIAGRAM

SCIA7933E

Revision: June 2006

CVT-24

2007 Versa

CVT SYSTEM
CAN Communication

UCS005XU

SYSTEM DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other B
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,
CVT
"CAN System Specification Chart" .

Input/Output Signal of TCM
Fluid
pressure
control

Select control

Shift control

Lock-up
control

CAN communication
control

Fail-safe
function
(*3)

PNP switch

Accelerator pedal position signal (*1)

Closed throttle position signal(*1)

Control item

Engine speed

signal(*1)

CVT fluid temperature sensor
Input

UCS005XV

Stop lamp switch

signal(*1)

Overdrive control signal(*1)

Primary speed sensor

Secondary speed sensor

Primary pressure sensor

Secondary pressure sensor

TCM power supply voltage signal

Step motor

Secondary pressure solenoid valve

O/D OFF indicator signal(*2)

X
X
X

Line pressure solenoid valve

Lock-up select solenoid valve

I
X

X
X

CVT-25

*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.

Revision: June 2006

TCC solenoid valve
Output

2007 Versa

CVT SYSTEM
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.

SCIA1846E

NORMAL CONTROL
Optimize the line pressure and secondary pressure, depending on driving conditions, on the basis of the throttle position, the engine speed, the primary pulley (input) revolution speed, the secondary pulley (output) revolution 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 feedback.

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 command 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.

SCIA7958E

Revision: June 2006

CVT-26

2007 Versa

CVT SYSTEM
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 highest.

CVT

SCIA1953E

OVERDRIVE-OFF MODE
Use this position for the improved engine braking.
F

“L” POSITION
By limiting the gear range to the lowest position, the strong driving
force and the engine brake can be secured.

I
SCIA1955E

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.
K

ACCELERATION CONTROL
According to vehicle speed and a change of accelerator pedal angle, driver's request for acceleration and driving 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 compatibility of mileage with driveability.

Revision: June 2006

CVT-27

2007 Versa

CVT SYSTEM
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.

SCIA1958E

TORQUE CONVERTER CLUTCH AND SELECT CONTROL VALVE CONTROL
Lock-up and Select Control System Diagram

SCIA2374E

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 position, the engine speed, and the secondary pulley (output) revolution speed to lessen the shift shock.

Revision: June 2006

CVT-28

2007 Versa

CVT SYSTEM
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.

CVT

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 difference between the stepping motor and the primary pulley.

Secondary valve

Controls the line pressure from the secondary pulley depending on operating conditions.

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 converter clutch control valve or select control valve.

Lock-up select solenoid valve

Controls the select switch valve.

Revision: June 2006

CVT-29

2007 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Introduction

PFP:00028
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 the “One 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. However, 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 recommended.
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 CONSULT-II. Time data indicates how many times the vehicle was driven
after the last detection of a DTC.

BCIA0030E

Revision: June 2006

CVT-30

2007 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEM
If the DTC is being detected currently, the time data will be “0”.
A

CVT
SAT015K

If a 1st trip DTC is stored in the ECM, the time data will be “1t”.
E

G
SAT016K

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 following priorities to update the data.
Priority
1
2
3

Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175

1st trip freeze frame data

Both 1st trip freeze frame data and freeze frame data (along with the DTC) are cleared when the ECM memory 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

CVT-31

Except the above items (Includes CVT related items)

Revision: June 2006

Items
Freeze frame data

2007 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEM
●
●
●

1st trip freeze frame data
System readiness test (SRT) codes
Test values

HOW TO ERASE DTC (WITH CONSULT-II)
●

1.
2.
3.
4.
5.
6.
7.

If a DTC is displayed for both ECM and TCM, it is necessary to be erased for both ECM and TCM.
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.
Turn CONSULT-II ON and touch “TRANSMISSION”.
Touch “SELF-DIAG RESULTS”.
Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
Touch “ENGINE”.
Touch “SELF-DIAG RESULTS”.
Touch “ERASE”. (The DTC in the ECM will be erased.)

SCIA7508E

HOW TO ERASE DTC (WITH GST)
1.
2.

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.
Select Mode 4 with GST (Generic Scan Tool). For details, refer to EC-126, "Generic Scan Tool (GST)
Function" .

Revision: June 2006

CVT-32

2007 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEM
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 without 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 CONNECTOR" .
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.

CVT

D
SEF217U

Revision: June 2006

CVT-33

2007 Versa

TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
DTC Inspection Priority Chart

PFP:00004
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 .
Priority

Detected items (DTC)

U1000 CAN communication line

Except above

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 transaxle 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, secondary 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 pressure 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.

Revision: June 2006

CVT-34

2007 Versa

TROUBLE DIAGNOSIS
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

CVT
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 capable of diagnosing malfunctioning parts while the ECM can store malfunctions 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 malfunction, etc.

SAT631IB

It is much more difficult to diagnose an error that occurs intermittently 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" .

K
SAT632I

Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The customer 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.

SEF234G

Revision: June 2006

CVT-35

2007 Versa

TROUBLE DIAGNOSIS
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 symptoms 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

SCIA6877E

*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

Revision: June 2006

CVT-36

2007 Versa

TROUBLE DIAGNOSIS
DIAGNOSTIC WORKSHEET
Information From Customer

KEY POINTS
●
WHAT..... Vehicle & CVT model
●
WHEN..... Date, Frequencies
●
WHERE..... Road conditions
●
HOW..... Operating conditions, Symptoms
Customer name

MR/MS

CVT

Model & Year

VIN

Trans. Model

Engine

Mileage

malfunction Date

Manuf. Date

In Service Date

Frequency

❏ Continuous

Symptoms

❏ Vehicle does not move.

❏ Intermittent (

times a day)

(❏ 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

Diagnostic Worksheet Chart
1

❏ Read the item on cautions concerning fail-safe and understand the customer's complaint.

CVT-34

❏ CVT fluid inspection
2

❏ Leak (Repair leak location.)
❏ State
❏ Amount

CVT-43

❏ Stall test and line pressure test
❏ Stall test

❏ Torque converter one-way clutch
❏ Reverse brake
❏ Forward clutch
❏ Steel belt

❏ Engine
❏ Line pressure low
❏ Primary pulley
❏ Secondary pulley

CVT-43,
CVT-45

❏ Line pressure inspection - Suspected part:

Revision: June 2006

CVT-37

2007 Versa

TROUBLE DIAGNOSIS
❏ Perform road test.

CVT-46

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"

4-1.

Check at idle

4-2.

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"

Revision: June 2006

CVT-38

2007 Versa

TROUBLE DIAGNOSIS
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

4-3.

❏ 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"

CVT

❏ Inspect each system for items found to be NG in the self-diagnosis and repair or replace the malfunctioning parts.

❏ Perform all road tests and enter the checks again for the required items.

❏ For any remaining NG items, perform the “diagnosis procedure” and repair or replace the malfunctioning parts.

❏ Erase the results of the self-diagnosis from the TCM.

Revision: June 2006

CVT-39

CVT-46

CVT-32,
CVT-32

2007 Versa

TROUBLE DIAGNOSIS
CVT Electrical Parts Location

UCS005Y9

BCIA0033E

Revision: June 2006

CVT-40

2007 Versa

TROUBLE DIAGNOSIS
1.

O/D OFF indicator lamp

Shift position indicator

Accelerator pedal position sensor

CVT unit harness connector

Hood release

TCM

Overdrive control switch

CVT

Revision: June 2006

CVT-41

2007 Versa

TROUBLE DIAGNOSIS
Circuit Diagram

UCS005YA

BCWA0667E

Revision: June 2006

CVT-42

2007 Versa

TROUBLE DIAGNOSIS
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.
Fluid status

Conceivable cause

CVT

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

STALL TEST
Stall Test Procedure
1.
2.

Inspect the amount of engine oil. Replenish the engine oil if necessary.
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.

J
SAT647B

3.
4.

Securely engage the parking brake so that the tires do not turn.
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.

SAT513G

Start engine, apply foot brake, and place selector lever in “D”
position.

SAT775B

Revision: June 2006

CVT-43

2007 Versa

TROUBLE DIAGNOSIS
6.
7.

While holding down the foot brake, gradually press down the
accelerator pedal.
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 seconds during this test.
Stall speed:

2,600 - 3,150 rpm
SAT514G

8.
9.

Move the selector lever to the “N” position.
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.

SAT771B

Judgement Stall Test
Selector lever position

Expected problem location

“D”

“R”

●

Forward clutch

●

Reverse brake

●

Engine and torque converter one-way clutch

●

Line pressure low

●

Primary pulley

●

Secondary pulley

●

Steel belt

Stall rotation
H

O: Stall speed within standard value position.
H: Stall speed is higher than standard value.
L: Stall speed is lower than standard value.

Revision: June 2006

CVT-44

2007 Versa

TROUBLE DIAGNOSIS
LINE PRESSURE TEST
Line Pressure Test Port

CVT

D
SCIA6184E

Line Pressure Test Procedure
1.
2.

Inspect the amount of engine oil and replenish if necessary.
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.
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 detection plug.

Securely engage the parking brake so that the tires do not turn.
I

K
SAT513G

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" .
After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque below.
: 7.5 N·m (0.77 kg-m, 66 in-lb)

SAT493G

CAUTION:
● Do not reuse O-ring.
● Apply CVT fluid to O-ring.

Revision: June 2006

CVT-45

2007 Versa

TROUBLE DIAGNOSIS
Line Pressure
Line pressure

Engine speed

kPa (kg/cm2 , psi)

“R”, “D” and “L” positions
At idle

650 (6.63, 94.3)

At stall

4,250 (43.35, 616.3)*

*: Reference values

Judgement of Line Pressure Test
Judgement

Possible cause
Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example

Low for all positions
(“P”, “R”, “N”, “D”, “L”)

Idle speed

Only low for a specific
position

●

Oil pump wear

●

Pressure regulator valve or plug sticking or spring fatigue

●

Oil strainer

●

Engine idle speed too low

Þ oil pump Þ pressure regulator valve passage oil leak

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.
Possible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example

High

Line pressure does
not rise higher than
the line pressure for
idle.

Stall speed
The pressure rises,
but does not enter the
standard position.

Only low for a specific
position

●

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

Possible causes include a sensor malfunction or malfunction in the pressure adjustment function.
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

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

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.

Road Test

UCS005YC

DESCRIPTION
●
●

1.
2.
3.

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:
“Check Before Engine Is Started” CVT-49 .
“Check at Idle” CVT-49 .
“Cruise Test” CVT-50 .

SAT786A

Revision: June 2006

CVT-46

2007 Versa

TROUBLE DIAGNOSIS
●
●

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.

CVT

SAT496G

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.

I
BCIA0031E

2.
3.
4.

Touch “MAIN SIGNALS” to set recording condition.
See “Numerical Display”, “Barchart Display” or “Line Graph Display”.
Touch “START”.

SCIA5493E

5.
6.

When performing cruise test. Refer to CVT-50, "Cruise Test" .
After finishing cruise test part, touch “RECORD”.

SCIA4584E

Revision: June 2006

CVT-47

2007 Versa

TROUBLE DIAGNOSIS
7.

Touch “STORE”.

SCIA4492E

Touch “BACK”.

SCIA4493E

Touch “DISPLAY”.

SCIA4492E

10. Touch “PRINT”.
11. Check the monitor data printed out.

SCIA4494E

Revision: June 2006

CVT-48

2007 Versa

TROUBLE DIAGNOSIS
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

CVT

E
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.

Revision: June 2006

CVT-49

2007 Versa

TROUBLE DIAGNOSIS

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 WORKSHEET" . 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 WORKSHEET" . 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.
CVT fluid operating temperature:

2.
3.
4.
5.
6.

50 - 80°C (122 - 176°F)

Park vehicle on flat surface.
Move selector lever to “P” position.
Start engine.
Move selector lever to “L” position.
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”.
SCIA6644E

Revision: June 2006

CVT-50

2007 Versa

TROUBLE DIAGNOSIS

2. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 2
1.
2.
3.
4.

Park vehicle on flat surface.
Move selector lever to “D” position.
Push overdrive control switch. (O/D OFF indicator lamp is on.)
Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.

CVT

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, "DIAGNOSTIC WORKSHEET" . Continue “Road Test”.

E
SCIA6644E

3. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 3
1.
2.
3.
4.

Park vehicle on flat surface.
Move selector lever to “D” position.
Push overdrive control switch. (O/D OFF indicator lamp is off.)
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”.

J
SCIA6644E

4. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 4
1.
2.
3.

Park vehicle on flat surface.
Move selector lever to “L” position.
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”.
SCIA4366E

Revision: June 2006

CVT-51

2007 Versa

TROUBLE DIAGNOSIS

5. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 5
1.
2.
3.
4.

Park vehicle on flat surface.
Move selector lever to “D” position.
Push overdrive control switch. (O/D OFF indicator lamp is on.)
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, "DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
SCIA4366E

6. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 6
1.
2.
3.
4.

Park vehicle on flat surface.
Move selector lever to “D” position.
Push overdrive control switch. (O/D OFF indicator lamp is off.)
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”.
SCIA4366E

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”.

Revision: June 2006

CVT-52

2007 Versa

TROUBLE DIAGNOSIS

9. CHECK ENGINE BRAKE FUNCTION — PART 3

A
1. Move selector lever to “L” position.
2. Check engine brake.
B
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" .
CVT
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.
Engine type

Throttle position

Shift pattern

8/8
MR18DE
2/8

Engine speed (rpm)

At 40 km/h (25 MPH)

At 60 km/h (37 MPH)

“D” position
Overdrive-off mode
“L” position

3,600 - 4,400

4,400 - 5,200

“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

CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).

Revision: June 2006

CVT-53

2007 Versa

TROUBLE DIAGNOSIS
TCM Input/Output Signal Reference Values

UCS005YH

TCM TERMINAL CONNECTOR LAYOUT

SCIA0495E

TCM INSPECTION TABLE
Data are reference values and are measured between each terminal and ground.
Wire
Item
Condition
Terminal
color

Pressure control solenoid
valve A (Line
pressure solenoid valve)

Pressure control solenoid
valve B (Secondary pressure
solenoid valve)

Torque converter clutch
solenoid valve
Lock-up select
solenoid valve

and

Data (Approx.)

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

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

When vehicle cruises in
“D” position.

When CVT performs lock-up.

6.0 V

When CVT does not perform lock-up.

1.0 V

Selector lever in “P” and “N” positions

Battery voltage

CAN-H

—

CAN-L

—

Back-up lamp
relay

Wait at least for 5 seconds with the selector lever in
“R”, “D” and “L” positions

Selector lever in “R” position.
Selector lever in other positions.

0V
Battery voltage

—

Battery voltage

—

Power supply

Step motor A

Step motor B

14
15

Within 2 seconds after ignition switch ON, the time measurement by using
the pulse width measurement function (Hi level) of CONSULT-II.*1

30.0 msec

CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis connector.
*1: A circuit tester cannot be used to test this item.

10.0 msec

ROM assembly

—

ROM assembly

—

ROM assembly

—

Revision: June 2006

CVT-54

2007 Versa

TROUBLE DIAGNOSIS
Terminal

Wire
color

Item

Condition

Data (Approx.)

—

Battery voltage

B
19

Power supply
—

CVT
20

Step motor C

Step motor D

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 connector.
*1: A circuit tester cannot be used to test this item.
Selector lever in “N” and “P”positions.

Starter relay

Power supply
(memory backup)

Output speed
sensor (Secondary speed sensor)

30.0 msec

D
10.0 msec

E
Battery voltage

Selector lever in other positions.

Always

F
Ground

Selector lever in “R”, “N” and “D” positions.

PNP switch 1

Selector lever in “P” and “L” positions.

Always

When driving [“D” position, 20 km/h (12 MPH)].

K-LINE

—
Selector lever in “D” and “L” positions.

PNP switch 3
(monitor)

PNP switch 2

PNP switch 4

Transmission
fluid pressure
sensor A (Secondary pressure
sensor)

Input speed sensor (Primary
speed sensor)

Revision: June 2006

570 Hz

—
0V

Selector lever in “P” and “R” positions.

10.0 V - Battery
voltage

Selector lever in “D” and “L” positions.

Selector lever in “P”, “N” and “L” positions.

and

Selector lever in “N”, “D” and “L” positions.

Selector lever in “R” and “D” positions.

“N” position idle

When driving [“L” position, 20 km/h (12 MPH)].

CVT-55

Battery voltage

8.0 V - Battery
voltage

PNP switch 3

Battery voltage

Selector lever in “P”, “R” and “N” positions.

8.0 V - Battery
voltage
0V
10.0 V - Battery
voltage

1.0 V

1000 Hz

2007 Versa

TROUBLE DIAGNOSIS
Terminal

Wire
color

Item

Transmission
fluid pressure
sensor B (Primary pressure
sensor)

Sensor ground

Condition

and

Data (Approx.)

“N” position idle

0.7 V

Always

0V
—

5.0 V

—

Sensor power

CVT fluid temperature sensor

Ground

Revision: June 2006

When CVT fluid temperature is 20°C (68°F)

2.0 V

When CVT fluid temperature is 80°C (176°F)

1.0 V

Always

CVT-56

2007 Versa

TROUBLE DIAGNOSIS
CONSULT-II Function (TRANSMISSION)

UCS005YI

CONSULT-II can display each diagnostic item using the diagnostic test modes shown below.

FUNCTION
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.

—

VSP SENSOR

Condition

Display value (Approx.)

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

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 speedometer 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

Lock-up OFF

0.0 A

Lock-up ON

0.7 A

Release your foot from the accelerator pedal.

0.8 A

Press the accelerator pedal all the way down.

0.0 A

Secondary pressure low - Secondary pressure
high.

0.8 - 0.0 A

Lock-up OFF

0.0 A

Lock-up ON

0.7 A

“N” position idle

0.8 A

When stalled

0.3 - 0.6 A

ATF TEMP SEN

ISOLT1

ISOLT2
ISOLT3
SOLMON1

SOLMON2

Revision: June 2006

CVT

CONSULT-II REFERENCE VALUE
Item name

CVT-57

2007 Versa

TROUBLE DIAGNOSIS
Item name
SOLMON3

INH SW3M

INH SW4

INH SW3

INH SW2

INH SW1

BRAKE SW

FULL SW

IDLE SW

SPORT MODE SW

INDDRNG

INDLRNG

INDNRNG

INDRRNG

INDPRNG

Condition

Display value (Approx.)

“N” position idle

0.6 - 0.7 A

When stalled

0.4 - 0.6 A

Selector lever in “D” and “L” positions

Selector lever in “P”, “R” and “N” positions

OFF

Selector lever in “R” and “D” positions

Selector lever in “P”, “N” and “L” positions

OFF

Selector lever in “D” and “L” positions

Selector lever in “P”, “R” and “N” positions

OFF

Selector lever in “N”, “D” and “L” positions

Selector lever in “P” and “R” positions

OFF

Selector lever in “R”, “N” and “D” positions

Selector lever in “P” and “L” positions

OFF

Depressed brake pedal

Released brake pedal

OFF

Fully depressed accelerator pedal

Released accelerator pedal

OFF

Released accelerator pedal

Fully depressed accelerator pedal

OFF

While pushing overdrive cancel switch

Other conditions

OFF

Selector lever in “D” position

Selector lever in other positions

OFF

Selector lever in “L” position

Selector lever in other positions

OFF

Selector lever in “N” position

Selector lever in other positions

OFF

Selector lever in “R” position

Selector lever in other positions

OFF

Selector lever in “P” position

Selector lever in other positions

OFF

During driving

Changes ON ⇔ OFF.

Selector lever in “P” and “N” positions

Wait at least for 5 seconds with the selector
lever in “R”, “D” and “L” positions

OFF

Selector lever in “P” and “N” positions

Selector lever in other positions

OFF

SMCOIL D
SMCOIL C
SMCOIL B
SMCOIL A
LUSEL SOL OUT

STRTR RLY OUT

STRTR RLY MON

RANGE

Revision: June 2006

Selector lever in “P” and “N” positions

Selector lever in other positions

OFF

Selector lever in “N” or “P” position.

N·P

Selector lever in “R” position.

Selector lever in “D” position.

Selector lever in “L” position.

CVT-58

2007 Versa

TROUBLE DIAGNOSIS
*: Models without ABS does not indicate.

CONSULT-II SETTING PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .

WORK SUPPORT MODE
Display Item List

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.

CVT

Engine Brake Adjustment
1.

Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
E

G
BCIA0031E

Touch “ENGINE BRAKE ADJ”.

SCIA4287E

Touch “START”.
L

SCIA4288E

Set “ENGINE BRAKE LEVEL” by touching “UP” or “DOWN”.
“ENGINE BRAKE LEVEL”
0: Initial set value (Engine brake level control is
activated)
OFF: Engine brake level control is deactivated.

5.
6.

Turn ignition switch OFF, wait at least 5 seconds and then turn
ignition switch ON.
Engine brake level set is completed.
SAT934J

Revision: June 2006

CVT-59

2007 Versa

TROUBLE DIAGNOSIS
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.

BCIA0031E

Touch “CONFORM CVTF DETERIORTN”.

SCIA4287E

Check “CVTF DETERIORATION DATE”.
“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

CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase
“CVTF DETERIORATION DATE”.

SCIA4290E

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.

Revision: June 2006

CVT-60

2007 Versa

TROUBLE DIAGNOSIS
Operation Procedure
1.

Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”.
Display shows malfunction experienced since the last erasing
operation.

CVT

BCIA0031E

Display Items List
X: Applicable

—: Not applicable

TCM selfdiagnosis

OBD-II (DTC)

“TRANSMISSION”
with CONSULT-II

MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST

Reference
page

Items (CONSULTII screen terms)

Malfunction is detected when...

CAN COMM CIRCUIT

When TCM is not transmitting or receiving CAN communication signal for 2 seconds or more

U1000

CVT-68

CONTROL
UNIT(CAN)

When detecting error during the initial diagnosis of CAN controller of TCM

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

P0705

CVT-78

P0710

CVT-85

P0715

CVT-90

P0720

CVT-95

P0725

—

CVT-101

PNP SW/CIRC
ATF TEMP SEN/
CIRC
INPUT SPD SEN/
CIRC

●

PNP switch 1-4 signals input with impossible pattern

●

PNP switch 3 monitor terminal open or short circuit

During running, the CVT fluid temperature sensor signal voltage is excessively high or low
●

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

●

Signal from vehicle speed sensor CVT [Output speed sensor (Secondary speed sensor)] not input due to open or
short circuit

VEH SPD SEN/
CIR AT

ENGINE SPEED
SIG

●

Unexpected signal input during running

●

TCM does not receive the CAN communication signal
from the ECM

●

Engine speed is too low while driving

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

CVT-105

P0744

CVT-110

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

Revision: June 2006

CVT-61

2007 Versa

TROUBLE DIAGNOSIS

Items (CONSULTII screen terms)

Malfunction is detected when...

TCM selfdiagnosis

OBD-II (DTC)

“TRANSMISSION”
with CONSULT-II

MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST

Reference
page

P0745

CVT-113

●

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

PRS CNT SOL/A
FCTN

Unexpected gear ratio was detected in the LOW side due to
excessively low line pressure

P0746

CVT-118

PRS CNT SOL/B
FCTN

Secondary pressure is too high or too low compared with the
commanded value while driving

P0776

CVT-121

P0778

CVT-124

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

TR PRS SENS/A
CIRC

Signal voltage of the transmission fluid pressure sensor A
(secondary pressure sensor) is too high or too low while driving

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 sensor) 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

CVT-137

SEC/PRESS
DOWN

Secondary fluid pressure is too low compared with the commanded value while driving

P0868

—

CVT-142

P1701

—

CVT-145

P1705

—

CVT-150

P1722

—

CVT-152

P1723

—

CVT-154

P1726

—

CVT-156

P1740

CVT-158

TCM-POWER
SUPPLY

TP SEN/CIRC A/T

ESTM VEH SPD
SIG*2

CVT SPD SEN/
FNCTN

ELEC TH CONTROL
LU-SLCT SOL/
CIRC

●

When the power supply to the TCM is cut OFF, for example 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)

TCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM
●

CAN communication with the ABS actuator and the electric unit (control unit) is malfunctioning

●

There is a great difference between the vehicle speed signal from the ABS actuator and the electric unit (control
unit), and the vehicle speed sensor signal

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
The electronically controlled throttle for ECM is malfunctioning
●

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

Revision: June 2006

CVT-62

2007 Versa

TROUBLE DIAGNOSIS

Items (CONSULTII screen terms)

Malfunction is detected when...

TCM selfdiagnosis

OBD-II (DTC)

“TRANSMISSION”
with CONSULT-II

MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST

Reference
page

L/PRESS CONTROL

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

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

CVT-168

NO DTC IS
DETECTED: FURTHER TESTING
MAY BE
REQUIRED

CVT

E
No NG item has been detected

—

*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”.
H

J
BCIA0031E

Touch “ERASE”. (The self-diagnostic results will be erased.)

SCIA4614E

Revision: June 2006

CVT-63

2007 Versa

TROUBLE DIAGNOSIS
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.

BCIA0031E

Display Items List
X: Standard, —: Not applicable,

: Option

Monitor item selection
SELECTION
FROM
MENU

ECU
INPUT
SIGNALS

MAIN SIGNALS

VSP SENSOR (km/h)

—

Output speed sensor (secondary speed sensor).

ESTM VSP SIG (km/h)

—

Models without ABS does not indicate.

PRI SPEED SEN (rpm)

—

ENG SPEED SIG (rpm)

—

SEC HYDR SEN (V)

—

PRI HYDR SEN (V)

—

ATF TEMP SEN (V)

—

VIGN SEN (V)

—

VEHICLE SPEED (km/h)

—

Vehicle speed recognized by the TCM.

PRI SPEED (rpm)

—

Primary pulley speed.

SEC SPEED (rpm)

—

Secondary pulley speed.

ENG SPEED (rpm)

—

SLIP REV (rpm)

—

GEAR RATIO

—

G SPEED (G)

—

Monitored item (Unit)

ACC PEDAL OPEN (0.0/8)

TRQ RTO

—

SEC PRESS (MPa)

—

PRI PRESS (MPa)

—

ATF TEMP

—

DSR REV (rpm)

—

DGEAR RATIO

—

Revision: June 2006

CVT-64

Remarks

CVT fluid temperature sensor

Difference between engine speed and primary
pulley speed

Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.

2007 Versa

TROUBLE DIAGNOSIS
Monitor item selection
SELECTION
FROM
MENU

ECU
INPUT
SIGNALS

MAIN SIGNALS

DSTM STEP (step)

—

STM STEP (step)

—

LU PRS (MPa)

—

LINE PRS (MPa)

—

TGT SEC PRESS (MPa)

—

ISOLT1 (A)

—

Torque converter clutch solenoid valve output
current

Monitored item (Unit)

Remarks

CVT

ISOLT2 (A)

—

Pressure control solenoid valve A (line pressure
solenoid valve) output current

ISOLT3 (A)

—

Pressure control solenoid valve B (secondary
pressure solenoid valve) output current

SOLMON1 (A)

Torque converter clutch solenoid valve monitor
current

SOLMON2 (A)

Pressure control solenoid valve A (line pressure
solenoid valve) monitor current

SOLMON3 (A)

Pressure control solenoid valve B (secondary
pressure solenoid valve) monitor current

INH SW3M (ON/OFF)

—

PNP switch 3 ON-OFF status monitor

INH SW4 (ON/OFF)

—

PNP switch 4 ON-OFF status

INH SW3 (ON/OFF)

—

PNP switch 3 ON-OFF status

INH SW2 (ON/OFF)

—

PNP switch 2 ON-OFF status

INH SW1 (ON/OFF)

—

PNP switch 1 ON-OFF status

BRAKE SW (ON/OFF)

Stop lamp switch (Signal input with CAN comunication)

FULL SW (ON/OFF)

IDLE SW (ON/OFF)

SPORT MODE SW (ON/OFF)

STRDWNSW (ON/OFF)

—

STRUPSW (ON/OFF)

—

DOWNLVR (ON/OFF)

—

UPLVR (ON/OFF)

—

NONMMODE (ON/OFF)

—

MMODE (ON/OFF)

—

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

Overdrive control switch (Signal input with CAN
comunication)

Not mounted but displayed.

CVT-65

Signal input with CAN communications

Revision: June 2006

2007 Versa

TROUBLE DIAGNOSIS
Monitor item selection
SELECTION
FROM
MENU

ECU
INPUT
SIGNALS

MAIN SIGNALS

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 coil “B” energizing status

SMCOIL A (ON/OFF)

—

Step motor coil “A” energizing status

LUSEL SOL OUT (ON/OFF)

—

REV LAMP (ON/OFF)

—

STRTR RLY OUT (ON/OFF)

—

LUSEL SOL MON (ON/OFF)

—

STRTR RLY MON (ON/OFF)

—

VDC ON (ON/OFF)

—

TCS ON (ON/OFF)

—

ABS ON (ON/OFF)

—

ACC ON (ON/OFF)

—

Not mounted but displayed.

RANGE

—

Indicates position is recognized by TCM. Indicates a specific value required for control when
fail-safe function is activated.

M GEAR POS

—

Voltage (V)

—

Frequency (Hz)

—

DUTY-HI (high) (%)

—

DUTY-LOW (low) (%)

—

PLS WIDTH-HI (ms)

—

PLS WIDTH-LOW (ms)

—

Monitored item (Unit)

Remarks

Starter relay

Starter relay
Not mounted but displayed.

Displays the value measured by the voltage
probe.

The value measured by the pulse probe is displayed.

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" .

BCIA0031E

Revision: June 2006

CVT-66

2007 Versa

TROUBLE DIAGNOSIS
Diagnostic Procedure without CONSULT-II

UCS005YJ

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-126, "Generic Scan Tool (GST) Function" .

CVT

Revision: June 2006

CVT-67

2007 Versa

DTC U1000 CAN COMMUNICATION LINE
DTC U1000 CAN COMMUNICATION LINE
Description

PFP:23710
UCS005YK

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex 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 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.

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 confirm the malfunction is eliminated.

WITH CONSULT-II
1.
2.
3.
4.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Start engine and wait for at least 6 seconds.
If DTC is detected, go to CVT-70, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-68

2007 Versa

DTC U1000 CAN COMMUNICATION LINE
Wiring Diagram — CVT — CAN

UCS005YO

CVT

BCWA0668E

Revision: June 2006

CVT-69

2007 Versa

DTC U1000 CAN COMMUNICATION LINE
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire
color

Item

Condition

Data (Approx.)

CAN-H

—

CAN-L

—

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

SCIA5982E

Revision: June 2006

CVT-70

2007 Versa

DTC U1010 TRANSMISSION CONTROL MODULE (CAN)
DTC U1010 TRANSMISSION CONTROL MODULE (CAN)
Description

PFP:31036

A
UCS006KU

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent malfunction detection ability. B
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 connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
CVT
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

WITH CONSULT-II
1.
2.
3.
4.

BCIA0031E

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

Revision: June 2006

CVT-71

2007 Versa

DTC P0615 START SIGNAL CIRCUIT
DTC P0615 START SIGNAL CIRCUIT
Description

PFP:25230
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
Item name
STRTR RLY OUT

STRTR RLY MON

UCS005YR

Condition

Display value

Selector lever in “P” and “N” positions

Selector lever in other positions

OFF

Selector lever in “P” and “N” positions

Selector lever in other positions

OFF

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 confirm the malfunction is eliminated.

WITH CONSULT-II
1.
2.
3.
4.
5.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Start engine.
Drive vehicle for at least 2 consecutive seconds.
If DTC is detected, go to CVT-74, "Diagnostic Procedure" .

BCIA0031E

Revision: June 2006

CVT-72

2007 Versa

DTC P0615 START SIGNAL CIRCUIT
Wiring Diagram — CVT — STSIG

UCS005YV

CVT

BCWA0669E

Revision: June 2006

CVT-73

2007 Versa

DTC P0615 START SIGNAL CIRCUIT
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire
color

Item

Condition
Selector lever in “N” and “P” positions

Starter relay

Selector lever in other positions

Diagnostic Procedure

Data (Approx.)
Battery voltage
0V
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.
Item name

STRTR RLY OUT

Condition

Display value

Selector lever in “P” and
“N” positions

Selector lever in other
positions

OFF

Selector lever in “P” and
“N” positions

Selector lever in other
positions

OFF

SCIA2274E

STRTR RLY MON

Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between the TCM connector terminal and
ground.
Terminal

Item

Starter
relay

Condition

Data (Approx.)

Selector lever in “N” and “P”
positions

Battery voltage

Selector lever in other positions

OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.

SCIA2022E

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.

Revision: June 2006

CVT-74

2007 Versa

DTC P0615 START SIGNAL CIRCUIT

3. CHECK DTC

Perform CVT-72, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 4.

4. CHECK TCM

CVT

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.

Revision: June 2006

CVT-75

2007 Versa

DTC P0703 STOP LAMP SWITCH CIRCUIT
DTC P0703 STOP LAMP SWITCH CIRCUIT
Description

PFP:25320
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
Item name
BRAKE SW

UCS005YY

Condition

Display value

Depressed brake pedal

Released brake pedal

OFF

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

WITH CONSULT-II
1.
2.
3.
4.
5.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Start engine.
Start vehicle for at least 3 consecutive seconds.
If DTC is detected, go to CVT-77, "Diagnostic Procedure" .

BCIA0031E

Revision: June 2006

CVT-76

2007 Versa

DTC P0703 STOP LAMP SWITCH CIRCUIT
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.

CVT

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”.
Item name
BRAKE SW

Condition

Display value

Depressed brake pedal

Released brake pedal

OFF

OK or NG
OK
>> INSPECTION END
NG
>> GO TO 3.

G
SCIA2275E

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" .
Condition

Continuity

When brake pedal is depressed

Yes

When brake pedal is released

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.

Revision: June 2006

CVT-77

SCIA7982E

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Description
●
●
●

PFP:32006
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.
Shift position

PNP switch 1

PNP switch 2

PNP switch 3

PNP switch 4

PNP switch 3 (monitor)

OFF

CONSULT-II Reference Value
Item name
INH SW3M

INH SW4

INH SW3

INH SW2

INH SW1

UCS005Z4

Condition

Display value

Selector lever in “D” and “L” positions

Selector lever in “P”, “R” and “N” positions

OFF

Selector lever in “R” and “D” positions

Selector lever in “P”, “N” and “L” positions

OFF

Selector lever in “D” and “L” positions

Selector lever in “P”, “R” and “N” positions

OFF

Selector lever in “N”, “D” and “L” positions

Selector lever in “P” and “R” positions

OFF

Selector lever in “R”, “N” and “D” positions

Selector lever in “P” and “L” positions

OFF

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 conditions.
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

Revision: June 2006

CVT-78

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH
WITH CONSULT-II
1.
2.
3.
4.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Start engine.
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
If DTC is detected, go to CVT-82, "Diagnostic Procedure" .

CVT

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-79

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH
Wiring Diagram — CVT — PNP/SW

UCS005Z8

BCWA0670E

Revision: June 2006

CVT-80

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item
PNP switch 1

PNP switch 3
(monitor)

PNP switch 2

PNP switch 3

Condition
Selector lever in “R”, “N” and “D” positions.

Battery voltage

Selector lever in “D” and “L” positions.

Selector lever in “P”, “R” and “N” positions.

8.0 V - Battery voltage

Selector lever in “N”, “D” and “L” positions.

Selector lever in “P” and “R” positions.

10.0 V - Battery
voltage

Selector lever in “D” and “L” positions.

Selector lever in “P”, “R” and “N” positions.

PNP switch 4
Selector lever in “P”, “N” and “L” positions.

Selector lever in “P” and “L” positions.

Selector lever in “R” and “D” positions.
36

Data (Approx.)

8.0 V - Battery voltage

CVT

0V
10.0 V - Battery
voltage

Revision: June 2006

CVT-81

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH
Diagnostic Procedure

UCS005Z9

CHECK PNP SW SIGNALS

With CONSULT-II
Turn ignition switch ON. (Do not start engine.)
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”.
1.
2.

Shift
position

“INH SW1”

“INH SW2”

“INH SW3”

“INH SW4”

“INH SW3M”

OFF

SCIA2276E

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.
Connector

E32

Shift
position

Terminal
27 - Ground

34 - Ground

35 - Ground

36 - Ground

32 Ground

Battery voltage

10.0 V - Battery voltage

8.0 V - Battery voltage

10.0 V - Battery voltage

8.0 V Battery
voltage

10.0 V - Battery voltage

8.0 V - Battery voltage

8.0 V Battery
voltage

8.0 V - Battery voltage

10.0 V - Battery voltage

8.0 V Battery
voltage

Battery voltage

10.0 V - Battery voltage

SCIA2024E

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

Revision: June 2006

CVT-82

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH

CHECK PNP SWITCH CIRCUIT

1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check continuity between TCM connector terminals and ground.
Connector

Terminal
27 - ground

34 - ground

35 - ground
E32

36 - ground

32 - ground

Condition

Continuity

Select lever in “P” and “L” positions

Select lever in other positions

Yes

Select lever in “P” and “R” positions

Select lever in other positions

Yes

Select lever in “P”, “R” and “N” positions

Select lever in other positions

Yes

Select lever in “P”,“N” and “L” positions

Select lever in other positions

Yes

Select lever in “P”, “R” and “N” positions

Select lever in other positions

Yes

CVT

SCIA5258E

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.
1.
2.
3.

CHECK HARNESS BETWEEN TCM AND PNP SWITCH
Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

Continuity
Yes

Yes

M
Yes

SCIA3182E

Yes

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.

Revision: June 2006

CVT-83

2007 Versa

DTC P0705 PARK/NEUTRAL POSITION SWITCH

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 continuity between terminals on the PNP switch and ground.
PNP SW

Shift position

Connector

Terminal

Continuity

“R”, “N”, “D”
SW 1

Yes
4 - Ground

other positions
“N”, “D”, “L”

SW 2

Yes
5 - Ground

other positions
“D”, “L”

SW 3

other positions

SW 3 Monitor

2.
3.
4.

other positions
“D”, “L”
other positions

No
Yes

F46

14 - Ground

“R”, “D”
SW 4

SCIA4678E

Yes
15 - Ground

18 - Ground

No
Yes
No

If NG, check continuity with control cable disconnected. (Refer to step 1 above.)
If OK, with the control cable disconnected, adjust the control cable. Refer to CVT-195, "Adjustment of CVT
Position" .
If NG, even when the control cable is disconnected, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .

Revision: June 2006

CVT-84

2007 Versa

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
Description

PFP:31020

A
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.
Item name
Condition
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

●

D
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
●

CVT

Display value (Approx.)

On Board Diagnosis Logic
●

UCS005ZE

Harness or connectors
(Sensor circuit is open or shorted.)
CVT fluid temperature sensor

DTC Confirmation Procedure

UCS005ZF

WITH CONSULT-II
1.
2.
3.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
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
If DTC is detected, go to CVT-87, "Diagnostic Procedure" .

M
BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-85

2007 Versa

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
Wiring Diagram — CVT — FTS

UCS005ZG

BCWA0671E

Revision: June 2006

CVT-86

2007 Versa

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Sensor ground

CVT fluid temperature sensor

Condition

Data (Approx.)

Always

When CVT fluid temperature is 20°C (68°F).

2.0 V

When CVT fluid temperature is 80°C (176°F).

1.0 V

Diagnostic Procedure

UCS005ZH

CVT

CHECK CVT FLUID TEMPERATURE SENSOR SIGNAL
D

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”.
Item name

ATF TEMP SEN

Condition

Display value
(Approx.)

When CVT fluid temperature is 20°C
(68°F).

2.0 V

When CVT fluid temperature is 80°C
(176°F).

1.0 V

G
SCIA2277E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminals.
Name

Connector

Terminal

CVT fluid temperature sensor

E32

47 - 42

Temperature
°C (°F)

Voltage
(Approx.)

20 (68)

2.0 V

80 (176)

1.0 V

Turn ignition switch OFF.
Disconnect TCM connector.
Check if there is continuity between connector terminal and
ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

3.
4.
5.

CHECK CVT FLUID TEMPERATURE SENSOR CIRCUIT

1.
2.
3.

Turn ignition switch OFF.
Disconnect the TCM connector.
Check resistance between TCM connector terminals.
Name

Connector

Terminal

CVT fluid temperature sensor

E32

47 - 42

Temperature
°C (°F)

Resistance
(Approx.)

20 (68)

6.5 kΩ

80 (176)

0.9 kΩ

L
SCIA2027E

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 3.
SCIA2510E

Revision: June 2006

CVT-87

2007 Versa

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

3.
1.
2.
3.

CHECK CVT FLUID TEMPERATURE SENSOR
Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminals.
Name

Connector

Terminal

F46

17 - 19

CVT fluid
temperature sensor

Temperature °C (°F)

Resistance
(Approx.)

20 (68)

6.5 kΩ

80 (176)

0.9 kΩ

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.
1.
2.
3.

SCIA4679E

CHECK HARNESS BETWEEN TCM AND CVT FLUID TEMPERATURE SENSOR
Turn ignition switch OFF.
Disconnect the TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

Continuity
Yes

Yes

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.

SCIA4680E

5. CHECK DTC
Perform CVT-85, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.

Revision: June 2006

CVT-88

2007 Versa

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
Component Inspection

UCS005ZI

CVT FLUID TEMPERATURE SENSOR

1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminals.
Name

CVT fluid
temperature sensor

Connector

Terminal

F46

17 - 19

Temperature °C (°F)

Resistance
(Approx.)

20 (68)

6.5 kΩ

80 (176)

0.9 kΩ

CVT

If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .

E
SCIA4679E

Revision: June 2006

CVT-89

2007 Versa

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Description

PFP:31935
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.
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.

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

WITH CONSULT-II
1.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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.
If DTC is detected, go to CVT-92, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-90

2007 Versa

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Wiring Diagram — CVT — PRSCVT

UCS005ZO

CVT

BCWA0672E

Revision: June 2006

CVT-91

2007 Versa

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition

Input speed sensor
(Primary speed sensor)

When driving [“L” position, 20 km/h (12 MPH)].

Sensor ground

Data (Approx.)

Always

1000 Hz
0V

—

5.0 V

—

Sensor power

Diagnostic Procedure

UCS005ZP

1. CHECK INPUT SIGNALS
With CONSULT-II
Start engine.
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”.
1.
2.

Item name

Condition

Display value

PRI SPEED SEN

During driving (lock-up
ON)

Approximately matches
the engine speed.

OK or NG
OK
>> GO TO 6.
NG
>> GO TO 2.

SCIA2278E

2. CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
1.
2.

Start engine.
Check voltage between TCM connector terminals.
Item

Connector

Terminal

Data (Approx.)

TCM

E32

46 - 42

5.0 V

Check the pulse with CONSULT-II or oscilloscope, when vehicle
cruises.
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 diagnosis connector.

Item

Connector

Terminal

Name

Data
(Approx.)

TCM

E32

Input speed sensor (Primary
speed sensor)

1000 Hz

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.
Revision: June 2006

CVT-92

SCIA1915E

2007 Versa

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)

CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)

1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

CVT

Continuity
Yes

D
Yes

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.

E
SCIA4681E

CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR [INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)]

1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

Continuity

Yes

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.

K
SCIA4682E

CHECK THE TCM SHORT

Replace same type TCM, perform self-diagnosis check. Erase self-diagnostic results and then drive the vehicle [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.

Revision: June 2006

CVT-93

2007 Versa

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)

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.

Revision: June 2006

CVT-94

2007 Versa

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
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.
Item name
Condition
VSP SENSOR

●

During driving

Approximately matches the speedometer reading.

●

CVT

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
●

Display value

On Board Diagnosis Logic
●

UCS005ZT

Harness or connectors
(Sensor circuit is open or shorted.)
Output speed sensor (Secondary speed sensor)

DTC Confirmation Procedure

G
UCS005ZU

WITH CONSULT-II
1.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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.
If DTC is detected, go to CVT-97, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-95

2007 Versa

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
Wiring Diagram — CVT — SESCVT

UCS005ZV

BCWA0673E

Revision: June 2006

CVT-96

2007 Versa

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition

Output speed
sensor (Secondary speed sensor)

When driving [“D” position, 20 km/h
(12 MPH)].

Sensor ground

Always

Data (Approx.)

570 Hz

CVT

Diagnostic Procedure

UCS005ZW

1. CHECK INPUT SIGNAL
D

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”.

Item name

Condition

Display value

VSP SENSOR

During driving

Approximately matches
the speedometer reading.

OK or NG
OK
>> GO TO 8.
NG
>> GO TO 2.

2.
1.
2.

SCIA2279E

CHECK SECONDARY SPEED SENSOR
With CONSULT-II
Start engine.
Check power supply to output speed sensor (secondary speed sensor) by voltage between TCM connector terminals 10, 19 and 42. Refer to CVT-42, "Circuit Diagram" .
Item

Connector

TCM

E31, E32

Terminal

Data (Approx.)

10 - 42

Battery voltage

19 - 42

If OK, check the pulse when vehicle cruises.
Name

Condition

Output speed sensor (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 diagnosis connector.

Item

Connector

Terminal

TCM

E32

Data
(Approx.)

Name
Output speed sensor (Secondary speed sensor)

570 Hz

OK or NG
OK
>> GO TO 8.
NG
>> GO TO 3.
SCIA2344E

Revision: June 2006

CVT-97

2007 Versa

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

3.
1.
2.
3.
4.

CHECK POWER AND SENSOR GROUND
Turn ignition switch OFF.
Disconnect the output speed sensor (secondary speed sensor) harness connector.
Turn ignition switch ON.
Check voltage between output speed sensor (secondary speed
sensor) harness connector terminals.
Item

Connector

Terminal

Data
(Approx.)

Output speed sensor (Secondary speed sensor)

F48

3-1

Battery voltage

SCIA2345E

Check voltage between output speed sensor (secondary speed
sensor) harness connector terminal and ground.
Item

Connector

Terminal

Data
(Approx.)

Output speed sensor (Secondary speed sensor)

F48

3 - ground

Battery voltage

6. If OK, check harness for short to ground and short to power.
7. Reinstall any part removed.
OK or NG
SCIA2346E
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.

CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR)
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
Check continuity between TCM connector terminal and output
speed sensor (secondary speed sensor) harness connector terminal.
Item

Connector

Terminal

TCM

E32

Output speed sensor (Secondary speed sensor)

F48

Continuity
Yes

Revision: June 2006

CVT-98

SCIA1967E

2007 Versa

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

CHECK THE TCM SHORT

A
Replace same type TCM, perform self-diagnosis check. Erase self-diagnostic results and them drive the vehicle [more than 40 km/h (25 MPH)], perform self-diagnosis check. Refer to CVT-95, "DTC Confirmation Procedure" .
B
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" .
CVT

CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) (POWER)

1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and output speed sensor (secondary speed sensor) harness connector.
Check continuity between TCM connector terminals and output
speed sensor (secondary speed sensor) harness connector terminal. Refer to CVT-42, "Circuit Diagram" .
Item

Connector

Terminal

TCM

E31

Output speed sensor (Secondary speed sensor)

F48

TCM

E31

Output speed sensor (Secondary speed sensor)

F48

Continuity
Yes

Yes

H
SCIA2369E

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.

CHECK HARNESS BETWEEN TCM AND OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) (SENSOR GROUND)
1.
2.
3.

Connector

Terminal

TCM

E32

Output speed sensor (Secondary speed sensor)

F48

Continuity
Yes

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.

SCIA2347E

8. CHECK DTC
Perform CVT-95, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 9.
Revision: June 2006

CVT-99

2007 Versa

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

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.

Revision: June 2006

CVT-100

2007 Versa

DTC P0725 ENGINE SPEED SIGNAL
DTC P0725 ENGINE SPEED SIGNAL
Description

PFP:24825

A
UCS005ZX

The engine speed signal is sent from the ECM to the TCM.
B

CONSULT-II Reference Value

UCS005ZY

Remarks: Specification data are reference values.
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

On Board Diagnosis Logic

D
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.

●
●

CVT

Possible Cause

UCS00600

Harness or connectors
(The ECM to the TCM circuit is open or shorted.)
G

DTC Confirmation Procedure

UCS00601

WITH CONSULT-II
1.
2.

M
BCIA0031E

Diagnostic Procedure

UCS00602

CHECK DTC WITH ECM

With CONSULT-II
Turn ignition switch ON. (Do not start engine.)
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" .
1.
2.

Revision: June 2006

CVT-101

2007 Versa

DTC P0725 ENGINE SPEED SIGNAL

CHECK DTC WITH TCM

With CONSULT-II
Turn ignition switch ON. (Do not start engine.)
Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-II. Refer to CVT-60, "SELFDIAGNOSTIC 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 COMMUNICATION LINE" .
1.
2.

CHECK INPUT SIGNALS

With CONSULT-II
Start engine.
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”.
1.
2.

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

OK or NG
OK
>> GO TO 4.
NG
>> Check ignition signal circuit. Refer to EC-576, "IGNITION SIGNAL" .

CHECK DTC

Perform CVT-101, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 5.

CHECK TCM

Revision: June 2006

CVT-102

2007 Versa

DTC P0730 BELT DAMAGE
DTC P0730 BELT DAMAGE
Description

PFP:31935

A
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

CVT

Remarks: Specification data are reference values.
Item name
Condition
GEAR RATIO

Display value (Approx.)

During driving

2.56 - 0.43

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 unexpected gear ratio signal.

Possible Cause

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

3.
4.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
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
If DTC is detected, go to CVT-104, "Diagnostic Procedure" .

Revision: June 2006

UCS00606

Transaxle assembly

CVT-103

M
BCIA0031E

2007 Versa

DTC P0730 BELT DAMAGE
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

Revision: June 2006

CVT-104

2007 Versa

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Description

PFP:31940

A
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 B
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 CVT
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.
Item name
Condition
ISOLT1

Display value (Approx.)

Lock-up OFF

0.0 A

Lock-up ON

0.7 A

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

WITH CONSULT-II
1.
2.
3.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II and wait at least 10 consecutive seconds.
If DTC is detected, go to CVT-107, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-105

2007 Versa

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Wiring Diagram — CVT — TCV

UCS0060E

BCWA0674E

Revision: June 2006

CVT-106

2007 Versa

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition
When vehicle cruises in
“D” position.

Torque converter
clutch solenoid
valve

Data (Approx.)

When CVT performs lock-up.

6.0 V

When CVT does not perform lock-up.

1.0 V

Diagnostic Procedure

CVT

With CONSULT-II
Start engine.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “ISOLT1”.
1.
2.

ISOLT1

Condition

Display value (Approx.)

Lock-up OFF

0.0 A

Lock-up ON

0.7 A

SCIA2349E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Name
Torque
converter
clutch solenoid valve

Connector

E31

Terminal

3 - ground

Voltage
(Approx.)

Condition
When vehicle cruises
in “D” position

Lock-up ON

6.0 V

Lock-up OFF

1.0 V

Turn ignition switch OFF.
Disconnect TCM connector.
Check if there is continuity between the connector terminal and
ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT

1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check resistance between TCM connector terminal and ground.

Torque converter clutch
solenoid valve

Connector

Terminal

Resistance
(Approx.)

E31

3 - Ground

5 - 20 Ω

K
SCIA7954E

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 3.
SCIA1970E

Revision: June 2006

CVT-107

3.
4.
5.

Solenoid valve

UCS0060F

1. CHECK INPUT SIGNAL

Item name

2007 Versa

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

3.
1.
2.
3.

CHECK HARNESS BETWEEN TCM AND TORQUE CONVERTER CLUTCH SOLENOID VALVE
Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
Item

Connector

Terminal

TCM

E31

CVT unit harness connector

F46

Continuity
Yes

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.

SCIA4683E

4. CHECK VALVE RESISTANCE
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid Valve

Connector

Terminal

Resistance
(Approx.)

Torque converter clutch solenoid valve

F46

12 - Ground

5 - 20 Ω

OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
SCIA4684E

5. CHECK DTC
Perform CVT-105, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.

Revision: June 2006

CVT-108

2007 Versa

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Component Inspection

UCS0060G

TORQUE CONVERTER CLUTCH SOLENOID VALVE

1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid Valve

Connector

Terminal

Resistance
(Approx.)

Torque converter clutch solenoid valve

F46

12 - Ground

5 - 20 Ω

CVT

If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .

E
SCIA4684E

Revision: June 2006

CVT-109

2007 Versa

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Description

PFP:31940
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 malfunction such as control valve sticking, improper solenoid valve operation, etc.

●
●

CONSULT-II Reference Value

UCS0060I

Remarks: Specification data are reference values.
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.

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

WITH CONSULT-II
1.
2.
3.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
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)]
If DTC is detected go to CVT-111, "Diagnostic Procedure" .
BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-110

2007 Versa

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Diagnostic Procedure

UCS0060M

1. CHECK INPUT SIGNALS

With CONSULT-II
Start engine.
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.)

1.
2.

Item name

Condition

Display value

ENG SPEED SIG

Engine running

Closely matches the
tachometer reading.

During driving (lock-up ON)

Approximately matches
the engine speed.

CVT

E
SCIA2279E

PRI SPEED SEN

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.

Revision: June 2006

CVT-111

2007 Versa

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)

Revision: June 2006

CVT-112

2007 Versa

DTC P0745 LINE PRESSURE SOLENOID VALVE
DTC P0745 LINE PRESSURE SOLENOID VALVE
Description

PFP:31940

A
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.
Item name
Condition
ISOLT2

●

–
–

Release your foot from the accelerator pedal.

0.8 A

Press the accelerator pedal all the way down.

0.0 A

●

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
●

CVT

Display value (Approx.)

On Board Diagnosis Logic
●

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.
2.
3.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
Start engine and wait at least 5 seconds.
If DTC is detected, go to CVT-115, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-113

2007 Versa

DTC P0745 LINE PRESSURE SOLENOID VALVE
Wiring Diagram — CVT — LPSV

UCS0060S

BCWA0675E

Revision: June 2006

CVT-114

2007 Versa

DTC P0745 LINE PRESSURE SOLENOID VALVE
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition
Release your foot from the accelerator pedal.

5.0 - 7.0 V

Pressure control
solenoid valve A
(Line pressure
solenoid valve)

Data (Approx.)

and

Press the accelerator pedal all the way down.

1.0 - 3.0 V

CVT

Diagnostic Procedure

UCS0060T

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”.
Item name

ISOLT2

Condition

Display value (Approx.)

Release your foot from
the accelerator pedal.

0.8 A

Press the accelerator
pedal all the way down.

0.0 A

H
SCIA2349E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Name
Pressure
control
solenoid
valve A
(Line pressure solenoid valve)

Connector

E31

Terminal

1 - ground

Condition

Voltage
(Approx.)

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

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.

Revision: June 2006

CVT-115

SCIA2348E

2007 Versa

DTC P0745 LINE PRESSURE SOLENOID VALVE

2. CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE) CIRCUIT
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check resistance between TCM connector terminal and ground.
Solenoid valve

Connector

Terminal

Resistance
(Approx.)

E31

1 - ground

2.5 - 5.0 Ω

Pressure control solenoid valve A
(Line pressure solenoid valve)

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 3.
SCIA4685E

3. CHECK VALVE RESISTANCE
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid valve

Connector

Terminal

Resistance
(Approx.)

F46

2 - Ground

2.5 - 5.0 Ω

Pressure control solenoid valve A
(Line pressure solenoid valve)

OK or NG
OK
>> GO TO 4.
NG
>> Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .

SCIA4686E

CHECK HARNESS BETWEEN TCM AND PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector and TCM connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
Item

Connector

Terminal

TCM

E31

CVT unit harness connector

F46

Continuity
Yes

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.

SCIA4687E

5. CHECK DTC
Perform CVT-113, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.
Revision: June 2006

CVT-116

2007 Versa

DTC P0745 LINE PRESSURE SOLENOID VALVE

6. CHECK TCM

Component Inspection

CVT
UCS0060U

PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
1.
2.
3.

Solenoid valve
Pressure control solenoid valve A
(Line pressure solenoid valve)

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Connector

Terminal

Resistance
(Approx.)

F46

2 - Ground

2.5 - 5.0 Ω

If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
SCIA4686E

Revision: June 2006

CVT-117

2007 Versa

DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE SOLENOID VALVE)
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE 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.
Item name
Condition
PRI PRESS

Display value (Approx.)

“N” position idle

0.4 MPa

On Board Diagnosis Logic
●
●

–

UCS0060X

This is an OBD-II self-diagnostic item.
Diagnostic trouble code “P0746 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

WITH CONSULT-II
1.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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.
If DTC is detected, go to CVT-119, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-118

2007 Versa

DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE SOLENOID VALVE)
Diagnostic Procedure

UCS00610

1. CHECK INPUT SIGNAL

With CONSULT-II
Start engine.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “PRI PRESS”.

1.
2.

Item name

Condition

Display value (Approx.)

PRI PRESS

“N” position idle

0.4 MPa

CVT

E
SCIA2366E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Name

Connector

Terminal

Condition

Voltage
(Approx.)

Transmission
fluid pressure
sensor B (Primary pressure
sensor)

E32

41 - Ground

“N” position idle

0.7 V

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

SCIA1922E

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.

Revision: June 2006

CVT-119

2007 Versa

DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE SOLENOID VALVE)

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" .

Revision: June 2006

CVT-120

2007 Versa

DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRESSURE SOLENOID VALVE)
DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRESSURE SOLENOID VALVE)
PFP:31941
Description

UCS00611

The pressure control solenoid valve B (secondary pressure solenoid valve) is included in the control valve B
assembly.
The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the secondary pressure to suit the driving condition in response to a signal sent from the TCM.
CVT

●
●

CONSULT-II Reference Value

UCS00612

Remarks: Specification data are reference values.
Item name
Condition
SEC PRESS

“N” position idle

0.8 MPa

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
●
●
●
●

Display value (Approx.)

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.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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.
If DTC is detected, go to CVT-122, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-121

2007 Versa

DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRESSURE SOLENOID VALVE)
Diagnostic Procedure

UCS00616

1. CHECK INPUT SIGNAL
With CONSULT-II
Start engine.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC PRESS”.
1.
2.

Item name

Condition

Display value (Approx.)

SEC PRESS

“N” position idle

0.8 MPa

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

SCIA2366E

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 Inspection" .
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.

4. CHECK TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR) SYSTEM
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.

Revision: June 2006

CVT-122

2007 Versa

DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRESSURE SOLENOID VALVE)

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

Revision: June 2006

CVT-123

2007 Versa

DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE SOLENOID VALVE)
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 discharge 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.
Item name
Condition
ISOLT3
SOLMON3

Display value (Approx.)

Secondary pressure low - Secondary pressure high

0.8 - 0.0 A

“N” position idle

0.6 - 0.7 A

When stalled

0.4 - 0.6 A

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.
2.
3.
4.

Turn ignition switch ON.
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Start engine and wait at least 5 seconds.
If DTC is detected, go to CVT-126, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-124

2007 Versa

DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE SOLENOID VALVE)
Wiring Diagram — CVT — SECPSV

UCS0061C

CVT

BCWA0676E

Revision: June 2006

CVT-125

2007 Versa

DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE SOLENOID VALVE)
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition

Pressure control
solenoid valve B
(Secondary pressure solenoid
valve)

and

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

Diagnostic Procedure

Data (Approx.)

UCS0061D

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”.
Item name

Condition

Display value (Approx.)

ISOLT3

Secondary pressure low Secondary pressure high

0.8 - 0.0 A

SCIA2349E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Name
Pressure
control
solenoid
valve B
(Secondary pressure
solenoid
valve)

Connector

E31

Terminal

2 - ground

Condition

Voltage
(Approx.)

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

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.

Revision: June 2006

CVT-126

2007 Versa

DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE SOLENOID VALVE)

2. CHECK PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)
CIRCUIT
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check resistance between TCM connector terminal and ground.
Solenoid valve

Connector

Terminal

Resistance
(Approx.)

Pressure control solenoid
valve B (Secondary pressure solenoid valve)

E31

2 - Ground

2.5 - 5.0 Ω

CVT

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 3.

E
SCIA4507E

3. CHECK VALVE RESISTANCE
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid valve

Pressure control solenoid
valve B (Secondary pressure solenoid valve)

Connector

Terminal

Resistance
(Approx.)

F46

3 - Ground

2.5 - 5.0 Ω

OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.

J
SCIA4688E

4. CHECK HARNESS BETWEEN TCM AND PRESSURE CONTROL SOLENOID VALVE B (SECONDARY
PRESSURE SOLENOID VALVE)
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.

M
Item

Connector

Terminal

TCM connector

E31

CVT unit harness connector

F46

Continuity
Yes

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.

SCIA4689E

5. CHECK DTC
Perform CVT-124, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.
Revision: June 2006

CVT-127

2007 Versa

DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE SOLENOID VALVE)

Component Inspection

UCS0061E

PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid Valve

Connector

Terminal

Resistance
(Approx.)

Pressure control solenoid valve B (Secondary
pressure solenoid valve)

F46

3 - Ground

2.5 - 5.0 Ω

If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
SCIA4688E

Revision: June 2006

CVT-128

2007 Versa

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
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 B
assembly.
The transmission fluid pressure sensor A (secondary pressure sensor) detects secondary pressure of
CVT and sends TCM the signal.
CVT

●
●

CONSULT-II Reference Value

UCS0061O

Remarks: Specification data are reference values.
Item name
Condition
SEC HYDR SEN
SEC PRESS

“N” position idle

On Board Diagnosis Logic
●
●

●

1.0 V
0.8 MPa

E
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
●

Display value (Approx.)

UCS0061Q

Transmission fluid pressure sensor A (Secondary pressure sensor)
Harness or connectors
(Switch circuit is open or shorted.)

DTC Confirmation Procedure

H
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.
2.

3.
4.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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)
Start engine and wait for at least 5 consecutive seconds.
If DTC is detected, go to CVT-131, "Diagnostic Procedure" .

M
BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-129

2007 Versa

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
Wiring Diagram — CVT — SECPS

UCS0061S

BCWA0677E

Revision: June 2006

CVT-130

2007 Versa

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Transmission fluid
pressure sensor A
(Secondary pressure sensor)

Condition

Data (Approx.)

B
and

“N” position idle

1.0 V

CVT
42

Sensor ground

Always

D
—
46

5.0 V

Sensor power

E
—

Diagnostic Procedure

UCS0061T

1. CHECK INPUT SIGNAL
G

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”.
Item name

Condition

Display value (Approx.)

SEC HYDR SEN

“N” position idle

1.0 V

J
SCIA2279E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Name
Transmission
fluid pressure sensor A
(Secondary
pressure sensor)

Connector

Terminal

Condition

Voltage
(Approx.)

E32

37 - Ground

“N” position idle

1.0 V

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

Revision: June 2006

SCIA4508E

CVT-131

2007 Versa

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)

2. CHECK SENSOR POWER AND SENSOR GROUND
1.
2.

Turn ignition switch ON. (Do not start engine)
Check voltage between TCM connector terminals.
Item

Connector

Terminal

Data
(Approx.)

E32

46 - 42

5.0 V

TCM connector

OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
SCIA2367E

CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

Continuity
Yes

Yes

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.

SCIA4681E

4. CHECK HARNESS BETWEEN TCM AND TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR)
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

Continuity
Yes

Revision: June 2006

CVT-132

SCIA4690E

2007 Versa

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)

5. CHECK DTC

Perform CVT-129, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.

6. CHECK TCM

CVT

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.

Revision: June 2006

CVT-133

2007 Versa

DTC P0841 PRESSURE SENSOR FUNCTION
DTC P0841 PRESSURE SENSOR FUNCTION
Description

PFP:31936
UCS0061U

Using the engine load (throttle position), the primary pulley revolution speed, and the secondary pulley revolution speed as input signal, TCM changes the operating pressure of the primary pulley and the secondary pulley and changes the groove width of the pulley to control the gear ratio.

CONSULT-II Reference Value

UCS0061V

Remarks: Specification data are reference values.
Item name
Condition
PRI HYDR SEN

Display value (Approx.)
0.7 V

“N” position idle

SEC HYDR SEN

1.0 V

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 specification.

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.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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
If DTC is detected, go to CVT-135, "Diagnostic Procedure" .

BCIA0031E

Revision: June 2006

CVT-134

2007 Versa

DTC P0841 PRESSURE SENSOR FUNCTION
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.

CVT

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 SEN” and
“PRI HYDR SEN”.
Item name
PRI HYDR SEN
SEC HYDR SEN

Condition

Display value (Approx.)
0.7 V

“N” position idle

1.0 V

G
SCIA2277E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminals and ground.
Name

Connector

Transmission fluid
pressure sensor B
(Primary pressure sensor)
Transmission fluid
pressure sensor A
(Secondary pressure sensor)

Terminal

Condition

Voltage
(Approx.)

J
41 - Ground
E32

0.7 V
“N” position idle

37 - Ground

K
1.0 V
SCIA6879E

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) SYSTEM AND TRANSMISSION FLUID PRESSURE SENSOR B (PRIMARY PRESSURE SENSOR) SYSTEM
Check transmission fluid pressure sensor A (secondary pressure sensor) system and transmission fluid pressure sensor B (primary pressure sensor) system. Refer to CVT-129, "DTC P0840 TRANSMISSION FLUID

Revision: June 2006

CVT-135

2007 Versa

DTC P0841 PRESSURE SENSOR FUNCTION
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 Inspection" .
●
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" .

Revision: June 2006

CVT-136

2007 Versa

DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI PRESSURE SENSOR)
PFP:31936
Description

UCS00620

●
●

The transmission fluid pressure sensor B (primary pressure sensor) is included in the control valve B
assembly.
The transmission fluid pressure sensor B (primary pressure sensor) detects primary pressure of CVT and
sends TCM the signal.
CVT

CONSULT-II Reference Value

UCS00621

Remarks: Specification data are reference values.
Item name
Condition
PRI HYDR SEN

“N” position idle

0.7 V

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
●
●

Display value (Approx.)

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.
2.

3.
4.

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-137

2007 Versa

DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
Wiring Diagram — CVT — PRIPS

UCS00625

BCWA0678E

Revision: June 2006

CVT-138

2007 Versa

DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Transmission fluid
pressure sensor B
(Primary pressure
sensor)

Condition

Data (Approx.)

B
and

“N” position idle

0.7 V

CVT
42

Sensor ground

Always

D
—
46

5.0 V

Sensor power

E
—

Diagnostic Procedure

UCS00626

1. CHECK INPUT SIGNAL
G

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”.
Item name

Condition

Display value (Approx.)

PRI HYDR SEN

“N” position idle

0.7 V

J
SCIA2277E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Name
Transmission fluid
pressure
sensor B
(Primary
pressure
sensor)

Connector

Terminal

Condition

Voltage
(Approx.)

E32

41 - Ground

“N” position idle

0.7 V

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

Revision: June 2006

SCIA4509E

CVT-139

2007 Versa

DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)

2. CHECK SENSOR POWER AND SENSOR GROUND
1.
2.

Turn ignition switch ON. (Do not start engine)
Check voltage between TCM connector terminals.
Item

TCM connector

Connector

Terminal

Data
(Approx.)

E32

46 - 42

5.0 V

OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
SCIA2367E

CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

TCM

E32

CVT unit harness connector

F46

Continuity
Yes

Yes

SCIA4681E

4. CHECK HARNESS BETWEEN TCM AND TRANSMISSION FLUID PRESSURE SENSOR B (PRIMARY
PRESSURE SENSOR)
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector and CVT unit harness connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
Item

Connector

Terminal

TCM

E32

CVT unit harness connector

F46

Continuity
Yes

Revision: June 2006

CVT-140

SCIA4691E

2007 Versa

DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)

5. CHECK DTC

Perform CVT-137, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.

6. CHECK TCM

CVT

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.

Revision: June 2006

CVT-141

2007 Versa

DTC P0868 SECONDARY PRESSURE DOWN
DTC P0868 SECONDARY PRESSURE DOWN
Description

PFP:31941
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 pressure 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.
Item name
Condition
SEC PRESS

Display value (Approx.)

“N” position idle

0.8 MPa

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.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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)
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
If DTC is detected, go to CVT-143, "Diagnostic Procedure" .

Revision: June 2006

CVT-142

BCIA0031E

2007 Versa

DTC P0868 SECONDARY PRESSURE DOWN
Diagnostic Procedure

UCS0062C

1. CHECK INPUT SIGNAL

With CONSULT-II
Start engine.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “SEC PRESS”.

1.
2.

Item name

Condition

Display value (Approx.)

SEC PRESS

“N” position idle

0.8 MPa

CVT

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.

E
SCIA2366E

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 Inspection" .
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.

Revision: June 2006

CVT-143

2007 Versa

DTC P0868 SECONDARY PRESSURE DOWN

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" .

Revision: June 2006

CVT-144

2007 Versa

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
Description

PFP:31036

A
UCS0062D

When the power supply to the TCM is cut OFF, for example because the battery is removed, and the self-diagnosis memory function stops, malfunction is detected.
B
NOTE:
Since “P1701 TCM-POWER SUPPLY” will be indicated when replacing TCM, perform diagnosis after
erasing “SELF-DIAG RESULTS”
CVT

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.
2.
3.
4.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Wait for at least 2 consecutive seconds.
If DTC is detected, go to CVT-147, "Diagnostic Procedure" .

L
BCIA0031E

Revision: June 2006

CVT-145

2007 Versa

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
Wiring Diagram — CVT — POWER

UCS0062H

BCWA0679E

Revision: June 2006

CVT-146

2007 Versa

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
TCM terminals data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition

Data (Approx.)
—

Battery voltage

—

Battery voltage

—

Power supply

CVT

Power supply

Ground

Always

Power supply
(memory back-up)

Always

Battery voltage

Ground

Always

Diagnostic Procedure

UCS0062I

1. CHECK DTC
Turn ignition switch ON. (Do not start engine.)
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, "SELFDIAGNOSTIC RESULT MODE" .
Is the “P1701 TCM-POWER SUPPLY” displayed?
YES >> GO TO 2.
NO
>> INSPECTION END

1.
2.

BCIA0031E

2. CHECK TCM POWER SOURCE, STEP 1
1.
2.

Turn ignition switch OFF.
Check voltage between TCM connector terminal and ground.
Name

Connector

Terminal

Condition

Voltage
(Approx.)

Power supply
(memory backup)

E32

28 - Ground

Always

Battery
voltage

OK or NG
OK
>> GO TO 3.
NG
>> GO TO 4.

Revision: June 2006

SCIA4783E

CVT-147

2007 Versa

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)

3. CHECK TCM POWER SOURCE, STEP 2
1.
2.

Turn ignition switch ON. (Do not start engine.)
Check voltage between TCM connector terminals and ground.
Name

Connector

Terminal

Voltage
(Approx.)

Condition

Battery
voltage
Power supply

10 - Ground
0V
SCIA4784E

E31
Battery
voltage
Power supply

19 - Ground
0V

Power supply
(memory
back-up)

E32

28 - Ground

Battery
voltage

Always

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.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check continuity between TCM connector terminals and ground.
Name

Connector

Ground

E32

Terminal
25

Continuity
Yes

OK or NG
OK
>> GO TO 6.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
SCIA2671E

Revision: June 2006

CVT-148

2007 Versa

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)

6. CHECK DTC

Perform CVT-145, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 7.

7. CHECK TCM

CVT

Revision: June 2006

CVT-149

2007 Versa

DTC P1705 THROTTLE POSITION SENSOR
DTC P1705 THROTTLE POSITION SENSOR
Description

PFP:22620
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.
Item name
Condition
ACC PEDAL OPEN

Display value (Approx.)

Released accelerator pedal - Fully depressed accelerator pedal

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
●
●

0.0/8 - 8.0/8

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.
2.
3.
4.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Depress accelerator pedal fully and release it, then wait for 5
seconds.
If DTC is detected, go to CVT-151, "Diagnostic Procedure" .

BCIA0031E

Revision: June 2006

CVT-150

2007 Versa

DTC P1705 THROTTLE POSITION SENSOR
Diagnostic Procedure

UCS0062O

1. CHECK CAN COMMUNICATION LINE

Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
B
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" .
CVT
NO
>> GO TO 2.

2. CHECK INPUT SIGNAL
D

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”.
Item name

ACC PEDAL OPEN

Condition

Display value (Approx.)

Release accelerator
pedal.
↓
Fully depressed accelerator pedal

0.0/8
↓
8.0/8

G
SCIA2277E

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 CONSULT-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, "SELFDIAG RESULTS MODE" .

M
BCIA0030E

4. CHECK DTC
Perform CVT-150, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace damaged parts.

Revision: June 2006

CVT-151

2007 Versa

DTC P1722 ESTM VEHICLE SPEED SIGNAL
DTC P1722 ESTM VEHICLE SPEED SIGNAL
Description

PFP:47660
UCS0062P

The vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) to TCM by CAN communication line.

CONSULT-II Reference Value

UCS0062Q

Remarks: Specification data are reference values.
Item name
Condition
ESTM VSP SIG

Display value

During driving

Approximately matches the speedometer reading.

VEHICLE SPEED

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

WITH CONSULT-II
1.
2.
3.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
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
If DTC is detected, go to CVT-153, "Diagnostic Procedure" .
BCIA0031E

Revision: June 2006

CVT-152

2007 Versa

DTC P1722 ESTM VEHICLE SPEED SIGNAL
Diagnostic Procedure

UCS0062U

1. CHECK CAN COMMUNICATION LINE

CVT

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-DIAGNOSIS" .
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.

3. CHECK INPUT SIGNALS
F

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”.
Item name

Condition

Display value

During driving

Approximately matches
the speedometer reading.

ESTM VSP SIG
VEHICLE SPEED

Check if there is a great difference between the two values.

I
SCIA4510E

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.

4. CHECK TCM
L

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.

Revision: June 2006

CVT-153

2007 Versa

DTC P1723 CVT SPEED SENSOR FUNCTION
DTC P1723 CVT SPEED SENSOR FUNCTION
Description
●
●

●

PFP:31907
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

WITH CONSULT-II
1.
2.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
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.
If DTC is detected, go to CVT-155, "Diagnostic Procedure" .

Revision: June 2006

CVT-154

BCIA0031E

2007 Versa

DTC P1723 CVT SPEED SENSOR FUNCTION
Diagnostic Procedure

UCS0062Z

1. CHECK STEP MOTOR FUNCTION

Perform the self-diagnosis check. Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" .
B
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" .)
CVT
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
G

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
I

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 Transaxle Assembly" , CVT-207, "Removal and Installation" .

Revision: June 2006

CVT-155

2007 Versa

DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM
DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM
Description

PFP:23710
UCS00630

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 electronically controlled throttle for ECM is malfunctioning.

Possible Cause

UCS00632

Harness or connectors
(Sensor circuit is open or shorted.)

DTC Confirmation Procedure

UCS00633

WITH CONSULT-II
1.
2.
3.
4.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
Start engine and let it idle for 5 second.
If DTC is detected, go to CVT-157, "Diagnostic Procedure" .

BCIA0031E

Revision: June 2006

CVT-156

2007 Versa

DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM
Diagnostic Procedure

UCS00634

1. CHECK DTC WITH ECM

With CONSULT-II
Turn ignition switch ON. (Do not start engine.)
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, "SELFDIAG RESULTS MODE" .
● If CAN communication line is detected, go to CVT-68,
"DTC U1000 CAN COMMUNICATION LINE" .

1.
2.

CVT

E
BCIA0030E

2. CHECK DTC
F

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.
●

Revision: June 2006

CVT-157

2007 Versa

DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
Description

PFP:31941
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
Item name
LUSEL SOL OUT

UCS00636

Condition

Display value

Selector lever in “P” and “N” positions

Wait at least for 5 seconds with the selector
lever in “R”, “D” and “L” positions

OFF

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

WITH CONSULT-II
1.
2.
3.

Turn ignition switch ON. (Do not start engine.)
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
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.)
If DTC is detected, go to CVT-160, "Diagnostic Procedure" .
BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-158

2007 Versa

DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
Wiring Diagram — CVT — L/USSV

UCS0063A

CVT

BCWA0680E

Revision: June 2006

CVT-159

2007 Versa

DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition

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

Diagnostic Procedure

Data (Approx.)

UCS0063B

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”.
Item name

LUSEL SOL OUT

Condition

Display value

Selector lever in “P” and
“N” positions

Wait at least for 5 seconds
with the selector lever in
“R”, “D” and “L” positions

OFF
SCIA4512E

Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between TCM connector terminal and ground.
Name

Lock-up
select solenoid valve

Connector

E31

Terminal

4 - Ground

Condition

Voltage
(Approx.)

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

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.

Revision: June 2006

CVT-160

SCIA7955E

2007 Versa

DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT

2. CHECK LOCK-UP SELECT SOLENOID VALVE CIRCUIT
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check resistance between TCM connector terminal and ground.
Solenoid valve

Lock-up select solenoid
valve

Connector
E31

Resistance
(Approx.)

Terminal

CVT

5 - 20 Ω

4 - Ground

OK or NG
OK
>> GO TO 5.
NG
>> GO TO 3.

SCIA4692E

3. CHECK VALVE RESISTANCE
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid valve

Lock-up select solenoid valve

Connector

Terminal

Resistance
(Approx.)

F46

13 - Ground

5 - 20 Ω

OK or NG
OK
>> GO TO 4.
NG
>> Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .

SCIA4693E

4. CHECK HARNESS BETWEEN TCM AND LOCK-UP SELECT SOLENOID VALVE
1.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
Item

Connector

Terminal

TCM

E31

CVT unit harness connector

F46

Continuity

Yes

SCIA4694E

5. CHECK DTC
Perform CVT-158, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.

Revision: June 2006

CVT-161

2007 Versa

DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT

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.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminal
and ground.
Solenoid valve

Lock-up select solenoid valve

Connector

Terminal

Resistance
(Approx.)

F46

13 - Ground

5 - 20 Ω

If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .

SCIA4693E

Revision: June 2006

CVT-162

2007 Versa

DTC P1745 LINE PRESSURE CONTROL
DTC P1745 LINE PRESSURE CONTROL
Description

PFP:31036

A
UCS0063D

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.

On Board Diagnosis Logic
●
●

UCS0063E

This is not an OBD-II self-diagnostic item.
CVT
Diagnostic trouble code “P1745 L/PRESS CONTROL” with CONSULT-II is detected when TCM detects
the unexpected line pressure.

Possible Cause

UCS0063F

UCS0063G

TCM

DTC Confirmation Procedure

WITH CONSULT-II
1.
2.

J
BCIA0031E

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

Revision: June 2006

CVT-163

2007 Versa

DTC P1777 STEP MOTOR - CIRCUIT
DTC P1777 STEP MOTOR - CIRCUIT
Description
●
●

PFP:31020
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.
Item name
Condition

Display value (Approx.)
−20 step - 180 step

STM STEP
SMCOIL A
SMCOIL B

During driving

SMCOIL C

Changes ON⇔OFF.

SMCOIL D

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

WITH CONSULT-II
1.
2.
3.

Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
Drive vehicle for at least 5 consecutive seconds.
If DTC is detected, go to CVT-166, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “WITH CONSULT-II”.

Revision: June 2006

CVT-164

2007 Versa

DTC P1777 STEP MOTOR - CIRCUIT
Wiring Diagram — CVT — STM

UCS0063N

CVT

BCWA0681E

Revision: June 2006

CVT-165

2007 Versa

DTC P1777 STEP MOTOR - CIRCUIT
TCM terminals data are reference values, measured between each terminal and ground.
Terminal

Wire color

Item

Condition

Data (Approx.)

Step motor A

30.0 msec

Step motor B

Within 2 seconds after ignition switch ON, the time measurement by using the pulse width measurement function (Hi level)
of CONSULT-II.*1

Step motor C

30.0 msec

Step motor D

CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis connector.
*1: A circuit tester cannot be used to test this item.

Diagnostic Procedure

10.0 msec

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”.
Item name

Condition

Display value (Approx.)
−20 step - 180 step

STM STEP
SMCOIL A
SMCOIL B

During driving

Changes ON⇔OFF.

SCIA4516E

SMCOIL C
SMCOIL D

OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.

2. CHECK HARNESS BETWEEN TCM AND STEP MOTOR
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit connector and TCM connector.
Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
Item

Connector

Terminal

TCM

E31

CVT unit harness connector

F46

TCM

E31

CVT unit harness connector

F46

TCM

E31

CVT unit harness connector

F46

TCM

E31

CVT unit harness connector

F46

Continuity
Yes

Yes

SCIA4695E

Yes

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.

Revision: June 2006

CVT-166

2007 Versa

DTC P1777 STEP MOTOR - CIRCUIT

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

CVT

Perform CVT-164, "DTC Confirmation Procedure" .
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 5.

5. CHECK TCM

Component Inspection

G
UCS0063P

STEP MOTOR
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT unit harness connector.
Check resistance between CVT unit harness connector terminals and ground.
Name

Connector

Terminal
6-7
8-9

Step motor

F46

Resistance
(Approx.)

30 Ω

6 - Ground
7 - Ground
8 - Ground

15 Ω
SCIA4696E

9 - Ground

If NG, replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
M

Revision: June 2006

CVT-167

2007 Versa

DTC P1778 STEP MOTOR - FUNCTION
DTC P1778 STEP MOTOR - FUNCTION
Description

PFP:31947
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.
Item name
Condition

Display value (Approx.)
−20 step - 180 step

STM STEP
GEAR RATIO

During driving

2.56 - 0.43

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 conditions.
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 confirm the malfunction is eliminated.

WITH CONSULT-II
1.
2.

3.
4.

Revision: June 2006

CVT-168

BCIA0031E

2007 Versa

DTC P1778 STEP MOTOR - FUNCTION
WITH GST
A

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
CVT
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
D
CVT-210, "Vehicle Speed When Shifting Gears" .
OK or NG
OK
>> INSPECTION END
E
NG
>> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .

Revision: June 2006

CVT-169

2007 Versa

OVERDRIVE CONTROL SWITCH
OVERDRIVE CONTROL SWITCH
Description
●
●

PFP:25130
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 position other than “D” releases the overdrive-off mode.

CONSULT-II Reference Value
Item name
SPORT MODE SW

Revision: June 2006

UCS006KP

Condition

Display value

While pushing overdrive cancel switch

Other conditions

OFF

CVT-170

2007 Versa

OVERDRIVE CONTROL SWITCH
Wiring Diagram — CVT — ODSW

UCS006KQ

CVT

BCWA0686E

Revision: June 2006

CVT-171

2007 Versa

OVERDRIVE CONTROL SWITCH
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire
color

Item

Condition

Data (Approx.)

CAN-H

—

CAN-L

—

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”.
Item name

Condition

Display value

SPORT MODE SW

While pushing overdrive
cancel switch

Other conditions

OFF

OK or NG
OK
>> INSPECTION END
NG
>> GO TO 3.

SCIA4517E

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.

Revision: June 2006

CVT-172

2007 Versa

OVERDRIVE CONTROL SWITCH

5. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT device connector and combination meter connector.
Check continuity between CVT device harness connector (A)
terminal and combination meter harness connector (B) terminal.
Item

Connector

Terminal

CVT device harness connector

M38

Combination meter harness
connector

M24

Continuity

CVT

Yes

SCIA7949E

Check continuity between CVT device harness connector terminal and ground.
Item

Connector

Terminal

Continuity

CVT device harness connector

M38

2 - ground

Yes

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.

SCIA7950E

6. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
1.
2.
3.

Connector

Terminal

CVT device harness connector

M38

Combination meter harness
connector

Continuity

L
Yes

M24

SCIA7951E

Check continuity between CVT device harness connector terminal and ground.
Item

Connector

Terminal

Continuity

CVT device harness connector

M38

2 - ground

Yes

Revision: June 2006

CVT-173

SCIA7952E

2007 Versa

OVERDRIVE CONTROL SWITCH
Component Inspection

UCS006KS

OVERDRIVE CONTROL SWITCH
With Intelligent Key
Check continuity between CVT device harness connector terminals.
Item
Overdrive control switch

Condition
While pushing
overdrive control switch

Connector

Terminal

M38

1-2

Continuity
Yes

Other conditions

SCIA7942E

Without Intelligent Key
Check continuity between CVT device harness connector terminals.
Item
Overdrive control switch

Condition
While pushing
overdrive control switch

Connector

Terminal

M38

1-2

Continuity

Other conditions

Yes
No

SCIA7943E

Revision: June 2006

CVT-174

2007 Versa

SHIFT POSITION INDICATOR CIRCUIT
SHIFT POSITION INDICATOR CIRCUIT
Description

PFP:24810

A
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
Item name

RANGE

UCS00642

Condition

Display value

Selector lever in “N” or “P” position.

N·P

Selector lever in “R” position.

Selector lever in “D” position.

Selector lever in “L” position.

CVT

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

Items

Presumed location of trouble
Park/neutral position switch
●

Actual position does not change.

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" .

Perform the self-diagnosis for CVT and the combination meter.

●

Shift position indicator in the combination meter does not indicate
any position.
Actual position changes, but the shift position indicator in the
combination meter does not change.

●

Refer to CVT-60, "SELF-DIAGNOSTIC RESULT MODE" and
DI-5, "COMBINATION METERS" .

Actual position differs from the shift position indicator in the combination meter.
Shift position indicator in the combination meter does not indicate
specific position only.

Revision: June 2006

Check the combination meter.
●

Refer to DI-5, "COMBINATION METERS" .

CVT-175

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
TROUBLE DIAGNOSIS FOR SYMPTOMS
Wiring Diagram — CVT — NONDTC

PFP:00007
UCS00644

BCWA0682E

Revision: June 2006

CVT-176

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
A

CVT

BCWA0683E

Revision: June 2006

CVT-177

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS

BCWA0684E

Revision: June 2006

CVT-178

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
TCM terminal data are reference values, measured between each terminal and ground.
Terminal

Wire
color

A
Condition

Data (Approx.)

CAN-H

—

CAN-L

—

Back-up lamp
relay

ROM assembly

—

ROM assembly

—

ROM assembly

—

Always

Item

Selector lever in “R” position.
Selector lever in other positions.

K-LINE
Sensor ground

0V
Battery voltage

—

5.0 V

—

CVT

Sensor power

Revision: June 2006

CVT-179

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
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

2. CHECK TCM POWER SOURCE
1.
2.

Turn ignition switch ON.
Check voltage between TCM connector terminals and ground.
Refer to CVT-146, "Wiring Diagram — CVT — POWER" .
Name

Connector

Power supply

E31

Terminal

Voltage (Approx.)

Battery voltage

OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.

SCIA4737E

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.
2.
3.

Turn ignition switch OFF.
Disconnect TCM connector.
Check continuity between TCM connector terminals and ground.
Refer to CVT-146, "Wiring Diagram — CVT — POWER" .
Name

Connector

Ground

E32

Terminal
25
48

Continuity
Yes

OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.

Revision: June 2006

CVT-180

SCIA2671E

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS

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.

CVT

6. CHECK SYMPTOM
D

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
F

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 “R” 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 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.

Revision: June 2006

CVT-181

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
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

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.
Revision: June 2006

CVT-182

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS

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.

CVT

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.

Revision: June 2006

CVT-183

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
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.

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.

Revision: June 2006

CVT-184

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
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.

CVT

2. CHECK CVT POSITION
E

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
G

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.

Revision: June 2006

CVT-185

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
Vehicle Speed Does Not Change in “L” Position

UCS006KE

SYMPTOM:
Vehicle speed does not change in “L” position while the cruise test.

DIAGNOSTIC PROCEDURE

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.

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.

Revision: June 2006

CVT-186

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
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

CVT

2. CHECK OVERDRIVE CONTROL SWITCH
E

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
G

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.

Revision: June 2006

CVT-187

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
Vehicle Speed Does Not Change in “D” Position

UCS006KG

SYMPTOM:
Vehicle speed does not change in “D” position while the cruise test.

DIAGNOSTIC PROCEDURE

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.

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.

Revision: June 2006

CVT-188

2007 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMS
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

CVT

2. CHECK CVT POSITION
E

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
G

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.

Revision: June 2006

CVT-189

2007 Versa

TRANSMISSION CONTROL MODULE
TRANSMISSION CONTROL MODULE
Removal and Installation

PFP:31036
UCS006KZ

COMPONENTS

SCIA6963E

TCM

REMOVAL
1.
2.
3.

Disconnect the battery negative terminal.
Disconnect the TCM harness connector (1) from the TCM (2).
● Instrument lower finisher (3)
Remove the TCM (2).

SCIA7167E

INSTALLATION
Installation is in the reverse order of removal.

Revision: June 2006

CVT-190

2007 Versa

SHIFT CONTROL SYSTEM
SHIFT CONTROL SYSTEM
Removal and Installation

PFP:34901

A
UCS0064I

CONTROL DEVICE COMPONENTS
B

CVT

WCIA0638E

Selector lever knob

Overdrive control switch

Selector button return spring

Knob cover

Lock pin

Knob finisher

Selector button

Position indicator plate

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

Revision: June 2006

CVT-191

2007 Versa

SHIFT CONTROL SYSTEM
CONTROL CABLE COMPONENTS
Refer to the figure below for control cable removal and installation procedure.

WCIA0639E

Selector lever knob

Control device assembly

Lock plate

Bracket

Control cable

Bracket

Lock plate

Bracket

Transaxle assembly

Floor

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 assembly. Refer to CVT-202, "Removal and Installation" .

SCIA6965E

5.
6.

Remove the bolts (A) from the control device assembly (1).
Remove exhaust front tube, center muffler and heat plates.
Refer to EM-21, "EXHAUST MANIFOLD" .

WCIA0609E

Revision: June 2006

CVT-192

2007 Versa

SHIFT CONTROL SYSTEM
7.

Remove the plate (1) from the control device assembly.
: Vehicle front

CVT
SCIA6967E

8.
9.

Remove the lock plate (1) from the control cable (2).
: Vehicle front
Remove the control cable (2) from the control device assembly.

G
SCIA6968E

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

SCIA6970E

Revision: June 2006

CVT-193

2007 Versa

SHIFT CONTROL SYSTEM
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 position. Refer to CVT-195, "Adjustment of CVT Position" and CVT196, "Checking of CVT Position" .

SCIA6253E

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).

SCIA6969E

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.

SCIA6977E

ASSEMBLY
Assembly is in the reverse order of disassembly.

Revision: June 2006

CVT-194

2007 Versa

SHIFT CONTROL SYSTEM
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.

CVT

SCIA6971E

INSTALLATION
1.
2.
3.
4.

Insert lock pin (1) to selector lever knob (2).
Install knob cover (3) to selector lever knob (2).
Set selector lever in “N” position.
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.

SCIA6972E

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 “P” position.
4. Tighten the control cable nut.
CAUTION:
Secure the manual lever when tightening nut.
Control cable nut:

M
WCIA0608E

Refer to CVT-192, "CONTROL CABLE COMPONENTS" .

Check the operation of the CVT. Refer to CVT-196, "Checking of CVT Position" .

Revision: June 2006

CVT-195

2007 Versa

SHIFT CONTROL SYSTEM
Checking of CVT Position
1.
2.
3.
4.

7.
8.

UCS0064K

Place selector lever in “P” position, and turn ignition switch ON. (Do not start engine.)
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.
Move the selector lever and check for excessive effort, sticking, noise or rattle.
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.
The method of operating the selector lever to individual positions 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.
Confirm the back-up lamps illuminate only when selector lever is
placed in the “R” position. Confirm the back-up lamps do not illuminate when the selector lever is pushed toward the “R” position
WCIA0620E
side with the gear position remained in the “P” or “N” position.
Confirm the engine can only be started with the selector lever in the “P” and “N” positions.
Make sure transaxle is locked completely in “P” position.

Revision: June 2006

CVT-196

2007 Versa

CVT SHIFT LOCK SYSTEM
CVT SHIFT LOCK SYSTEM
Description
●

●

PFP:00000

A
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- B
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.
CVT
The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock solenoid and by the operation of the rotator and slider located inside key cylinder, respectively.

Shift Lock System Electrical Parts Location

UCS0064M

L
BCIA0034E

Key interlock cable

Key cylinder

Stop lamp switch

Brake pedal

Shift lock release button

Key interlock cable

Shift lock solenoid

Park position switch

Revision: June 2006

CVT-197

2007 Versa

CVT SHIFT LOCK SYSTEM
Wiring Diagram — CVT — SHIFT

UCS0064N

BCWA0685E

Revision: June 2006

CVT-198

2007 Versa

CVT SHIFT LOCK SYSTEM
Diagnostic Procedure

UCS006KN

A
SYMPTOM 1:
●
Selector lever cannot be moved from “P” position with ignition switch in ON position and brake
pedal depressed.
B
●
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.
CVT
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.
D

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
G

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
I

1.
2.
3.

Turn ignition switch ON. (Do not start engine.)
Selector lever is set in “P” position.
Check operation sound.

Condition

Brake pedal

Operation sound

When ignition switch is turned to ON position and selector lever is set in
“P” position.

Depressed

Yes

Released

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.
2.

Turn ignition switch ON. (Do not start engine.)
Check voltage between CVT device harness connector terminal
5 and ground.
Voltage:
Brake pedal depressed:
Brake pedal released:

Battery voltage
0V

OK or NG
OK
>> GO TO 8.
NG
>> GO TO 6.
SCIA7934E

Revision: June 2006

CVT-199

2007 Versa

CVT SHIFT LOCK SYSTEM

5. CHECK POWER SOURCE
1.
2.

Turn ignition switch ON. (Do not start engine.)
Check voltage between CVT device harness connector terminal
5 and ground.
Voltage:
Brake pedal depressed:
Brake pedal released:

Battery voltage
0V

OK or NG
OK
>> GO TO 9.
NG
>> GO TO 6.
SCIA7935E

6. CHECK STOP LAMP SWITCH
1.
2.
3.

Turn ignition switch OFF.
Disconnect stop lamp switch harness connector.
Check continuity between stop lamp switch harness connector
terminals 3 and 4.
Condition

Continuity

When brake pedal is depressed

Yes

When brake pedal is released

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.

SCIA2126E

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 connector
●
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.

Revision: June 2006

CVT-200

2007 Versa

CVT SHIFT LOCK SYSTEM

8. CHECK GROUND CIRCUIT
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT device harness connector.
Check continuity between CVT device harness connector terminal 6 and ground.

Continuity should exist.

CVT

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.

SCIA7936E

9. CHECK GROUND CIRCUIT
1.
2.
3.

Turn ignition switch OFF.
Disconnect CVT device harness connector.
Check continuity between CVT device harness connector terminal 6 and ground.

Continuity should exist.
H

SCIA7937E

Revision: June 2006

CVT-201

2007 Versa

KEY INTERLOCK CABLE
KEY INTERLOCK CABLE
Removal and Installation

PFP:34908
UCS006XR

COMPONENTS

WCIA0621E

Key interlock cable

Key cylinder

Control device assembly

Lock plate

Holder

Clip

Slider

Key interlock rod

Adjust holder

Casing cap

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" .

Revision: June 2006

CVT-202

2007 Versa

KEY INTERLOCK CABLE
4.

5.
6.

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).
Remove the casing cap (B) from the cable bracket on the control
device assembly.
Remove the key interlock cable from the key interlock rod (E).

CVT
SCIA6975E

8.
9.

Remove steering column cover (upper and lower) and instrument lower finisher. Refer to IP-10, "INSTRUMENT PANEL
ASSEMBLY" .
Pull out the lock plate (A) from the holder (B).
Remove the key interlock cable (1) from the key cylinder (2).

G
SCIA6976E

10. Remove the clip (A), and then remove the key interlock cable
(1).

SCIA6973E

INSTALLATION
CAUTION:
●
Install key interlock cable in such a way that it will not be damaged by sharp bends, twists or interference 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.

SCIA6976E

Revision: June 2006

CVT-203

2007 Versa

KEY INTERLOCK CABLE
6.
7.

Temporarily install the adjust holder (A) to the key interlock rod
(B).
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
SCIA6188E
assembly.
● If casing cap (C) is loose [less than 39.2 N (4.0 kg, 8.8 lb) removing force], replace key interlock
cable.
Slide the slider (A) toward the key interlock rod (D) while pressing 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).

SCIA6978E

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 ASSEMBLY" .
11. Install the center console assembly. Refer to IP-10, "INSTRUMENT 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" .
SCIA6973E

Revision: June 2006

CVT-204

2007 Versa

AIR BREATHER HOSE
AIR BREATHER HOSE
Removal and Installation

PFP:31098

A
UCS0064R

CVT

I
WCIA0612E

Air cleaner case

Air duct

Clip

Air breather hose

Air breather tube

CVT

REMOVAL
1.
2.

Remove air duct (inlet), air duct and air cleaner case. Refer to EM-16, "AIR CLEANER AND AIR DUCT" .
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.

WCIA0613E

Revision: June 2006

CVT-205

2007 Versa

DIFFERENTIAL SIDE OIL SEAL
DIFFERENTIAL SIDE OIL SEAL
Removal and Installation

PFP:33111
UCS0064S

COMPONENTS

WCIA0610E

CVT

Differential side oil seal

: Apply CVT Fluid NS-2.

REMOVAL
1.
2.

Remove drive shaft assembly. Refer to FAX-8, "FRONT DRIVE
SHAFT" .
Remove differential side oil seal using a suitable tool.
CAUTION:
Do not scratch transaxle case or converter housing.

SCIA2412E

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)
Tool number (Kent-Moore No.)
Dimensions A

—

(J-47244)

ST33400001 (J-47005)
0±0.5 (0±0.020)

CAUTION:
● Do not reuse differential side oil seals.
● Apply specified NISSAN CVT fluid to side oil seals.
2.
3.

WCIA0611E

Install drive shaft assembly. Refer to FAX-8, "FRONT DRIVE SHAFT" .
Check CVT fluid level and leakage. Refer to CVT-16, "Checking CVT Fluid" .

Revision: June 2006

CVT-206

2007 Versa

TRANSAXLE ASSEMBLY
TRANSAXLE ASSEMBLY
Removal and Installation

PFP:32020

A
UCS0064V

COMPONENTS
B

CVT

WCIA0614E

CVT fluid level gauge

CVT fluid charging pipe

O-ring

Copper washer

Fluid cooler tube

Transaxle assembly

Engine mounting bracket (LH)

Air breather hose

Refer to CVT-208, "INSTALLATION" .

REMOVAL
1.
2.

WCIA0615E

CVT-207

Remove the engine and transaxle as an assembly. Refer to EM-73, "Removal and Installation" .
Disconnect the secondary speed sensor connector (A) and CVT
unit connector (B). Refer to CVT-11, "Removal and Installation
Procedure for CVT Unit Connector" .
Remove the harness from the transaxle.

Revision: June 2006

2007 Versa

TRANSAXLE ASSEMBLY
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.

WCIA0616E

6.
7.
8.

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.
Remove the transaxle to engine and engine to transaxle bolts.
Separate the transaxle from the engine.
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.
Distance A:

14.4 mm (0.57 in) or more

WCIA0617E

Revision: June 2006

CVT-208

2007 Versa

TRANSAXLE ASSEMBLY
●

When installing the cooler outlet tube (1) to the transaxle assembly (2), align the cooler tube bracket (A) against the transaxle as
shown.

CVT
WCIA0618E

D
●
●

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.
Bolt No.

1 (Transaxle to engine)

2 (Engine to transaxle)

55 (2.17)

50 (1.97)

Number of bolts
Bolt length
“A” mm (in)
Tightening torque
N·m (kg-m, ft-lb)

G
62 (6.3, 46)

WCIA0619E

●

When installing the drive plate to torque converter nuts, tighten
them temporarily. Then tighten the nuts to the specified torque.
Converter nuts:

: 51 N·m (5.2 kg-m, 38 ft-lb)
J

K
WCIA0616E

●

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 Position" .
When replacing the CVT assembly, erase EEP ROM in TCM. Refer to CVT-9, "Service After Replacing
TCM and Transaxle Assembly" .

Revision: June 2006

CVT-209

2007 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications

PFP:00030
UCS0064W

Applied model

MR18DE engine

CVT model

RE0F08A

CVT assembly

Transmission gear ratio

Model code number

1XB6B

“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.

*1: Refer to MA-11, "Fluids and Lubricants" .

Vehicle Speed When Shifting Gears

UCS0064X

Numerical value data are reference values.
Engine type

Throttle position

Shift pattern

8/8

At 40 km/h (25 MPH)

At 60 km/h (37 MPH)

“D” position
Overdrive-off mode
“L” position

3,600 - 4,400

4,400 - 5,200

“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

MR18DE
2/8

Engine speed (rpm)

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

Stall speed

2,300 - 3,200 rpm

Line Pressure
Engine speed

UCS0064Z

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)*

*: Reference values

Solenoid Valves
Name
Pressure control solenoid valve B (secondary
pressure solenoid valve)
Pressure control solenoid valve A (line pressure
solenoid valve)
Torque converter clutch solenoid valve
Lock-up select solenoid valve

Revision: June 2006

UCS00650

Resistance (Approx.)

Terminal
3

2.5 - 5.0 Ω
2
5 - 20 Ω

CVT-210

12
13

2007 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)
CVT Fluid Temperature Sensor

UCS00651

A
Name
ATF TEMP SEN

Condition

CONSULT-II “DATA MONITOR” (Approx.)

Resistance (Approx.)

20°C (68°F)

2.0 V

6.5 kΩ

80°C (176°F)

1.0 V

0.9 kΩ

Primary Speed Sensor

UCS00652

Name
Primary speed sensor

Condition

Data (Approx.)

When driving [“L” position, 20 km/h (12 MPH)].

UCS00653

Name

CVT

1000 Hz

Secondary Speed Sensor
Secondary speed sensor

Condition

Data (Approx.)

When driving [“D” position, 20 km/h (12 MPH)].

570 Hz

Removal and Installation

E
UCS00654

Distance between end of converter housing and torque converter

14.4 mm (0.57 in) or more

Revision: June 2006

CVT-211

2007 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)

Revision: June 2006

CVT-212

2007 Versa

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