Product Detail Manual EC

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EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC A
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ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 8
Alphabetical Index .................................................... 8
DTC No. Index ....................................................... 12
PRECAUTIONS ........................................................ 16
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 16
Precautions for Battery Service .............................. 16
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 16
Precaution .............................................................. 17
Wiring Diagrams and Trouble Diagnosis ................ 19
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 21
ENGINE CONTROL SYSTEM .................................. 22
System Diagram ..................................................... 22
Vacuum Hose Drawing ........................................... 23
System Chart ......................................................... 24
Multiport Fuel Injection (MFI) System .................... 25
Electronic Ignition (EI) System ............................... 27
Air Conditioning Cut Control ................................... 28
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 28
CAN communication .............................................. 29
BASIC SERVICE PROCEDURE .............................. 34
Idle Speed and Ignition Timing Check .................... 34
Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment ............................................................. 35
Accelerator Pedal Released Position Learning ...... 46
Throttle Valve Closed Position Learning ................ 46
Idle Air Volume Learning ........................................ 46
Fuel Pressure Check .............................................. 48
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 50
Introduction ............................................................ 50
Two Trip Detection Logic ........................................ 50
Emission-Related Diagnostic Information .............. 51
IVIS (Infiniti Vehicle Immobilizer System — NATS) ... 66
Malfunction Indicator Lamp (MIL) ........................... 66
OBD System Operation Chart ................................ 70
TROUBLE DIAGNOSIS ............................................ 75
Trouble Diagnosis Introduction ............................... 75
DTC Inspection Priority Chart ................................. 78
Fail-Safe Chart ....................................................... 80
Basic Inspection ..................................................... 81
Symptom Matrix Chart ............................................ 86
Engine Control Component Parts Location ............ 90
Circuit Diagram ....................................................... 96
ECM Harness Connector Terminal Layout ............. 98
ECM Terminals and Reference Value ..................... 98
CONSULT-II Function ...........................................107
Generic Scan Tool (GST) Function .......................119
CONSULT-II Reference Value in Data Monitor Mode
.122
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................125
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .128
Description ............................................................128
Testing Condition ..................................................128
Inspection Procedure ............................................128
Diagnostic Procedure ...........................................129
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................132
Description ............................................................132
Diagnostic Procedure ...........................................132
POWER SUPPLY CIRCUIT FOR ECM ...................133
Wiring Diagram .....................................................133
Diagnostic Procedure ...........................................136
DTC U1000, U1001 CAN COMMUNICATION LINE .140
Description ............................................................140
On Board Diagnosis Logic ....................................140
DTC Confirmation Procedure ...............................140
Wiring Diagram .....................................................141
Diagnostic Procedure ...........................................142
DTC P0011, P0021 IVT CONTROL ........................143
Description ............................................................143
CONSULT-II Reference Value in Data Monitor Mode
.143
On Board Diagnosis Logic ....................................144
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DTC Confirmation Procedure ...............................144
Diagnostic Procedure ...........................................145
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER .146
Description ............................................................146
CONSULT-II Reference Value in Data Monitor Mode
.146
On Board Diagnosis Logic ....................................146
DTC Confirmation Procedure ...............................147
Wiring Diagram .....................................................148
Diagnostic Procedure ...........................................151
Component Inspection ..........................................153
Removal and Installation ......................................153
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .154
Description ............................................................154
CONSULT-II Reference Value in Data Monitor Mode
.154
On Board Diagnosis Logic ....................................154
DTC Confirmation Procedure ...............................155
Wiring Diagram .....................................................156
Diagnostic Procedure ...........................................159
Component Inspection ..........................................161
Removal and Installation ......................................161
DTC P0101 MAF SENSOR .....................................162
Component Description ........................................162
CONSULT-II Reference Value in Data Monitor Mode
.162
On Board Diagnosis Logic ....................................162
DTC Confirmation Procedure ...............................163
Overall Function Check ........................................164
Wiring Diagram .....................................................165
Diagnostic Procedure ...........................................166
Component Inspection ..........................................169
Removal and Installation ......................................169
DTC P0102, P0103 MAF SENSOR .........................170
Component Description ........................................170
CONSULT-II Reference Value in Data Monitor Mode
.170
On Board Diagnosis Logic ....................................170
DTC Confirmation Procedure ...............................171
Wiring Diagram .....................................................172
Diagnostic Procedure ...........................................173
Component Inspection ..........................................176
Removal and Installation ......................................176
DTC P0112, P0113 IAT SENSOR ...........................177
Component Description ........................................177
On Board Diagnosis Logic ....................................177
DTC Confirmation Procedure ...............................177
Wiring Diagram .....................................................179
Diagnostic Procedure ...........................................180
Component Inspection ..........................................181
Removal and Installation ......................................181
DTC P0117, P0118 ECT SENSOR ..........................182
Component Description ........................................182
On Board Diagnosis Logic ....................................182
DTC Confirmation Procedure ...............................183
Wiring Diagram .....................................................184
Diagnostic Procedure ...........................................185
Component Inspection ..........................................186
Removal and Installation ......................................186
DTC P0122, P0123 TP SENSOR ............................187
Component Description ........................................187
CONSULT-II Reference Value in Data Monitor Mode
.187
On Board Diagnosis Logic ....................................187
DTC Confirmation Procedure ................................188
Wiring Diagram .....................................................189
Diagnostic Procedure ............................................190
Component Inspection ..........................................193
Removal and Installation .......................................193
DTC P0125 ECT SENSOR ......................................194
Component Description ........................................194
On Board Diagnosis Logic ....................................194
DTC Confirmation Procedure ................................195
Diagnostic Procedure ............................................195
Component Inspection ..........................................196
Removal and Installation .......................................196
DTC P0127 IAT SENSOR ........................................197
Component Description ........................................197
On Board Diagnosis Logic ....................................197
DTC Confirmation Procedure ................................197
Diagnostic Procedure ............................................198
Component Inspection ..........................................198
Removal and Installation .......................................199
DTC P0128 THERMOSTAT FUNCTION .................200
On Board Diagnosis Logic ....................................200
DTC Confirmation Procedure ................................200
Diagnostic Procedure ............................................200
Component Inspection ..........................................201
Removal and Installation .......................................201
DTC P0132, P0152 HO2S1 .....................................202
Component Description ........................................202
CONSULT-II Reference Value in Data Monitor Mode
.202
On Board Diagnosis Logic ....................................202
DTC Confirmation Procedure ................................203
Wiring Diagram .....................................................204
Diagnostic Procedure ............................................207
Component Inspection ..........................................210
Removal and Installation .......................................211
DTC P0133, P0153 HO2S1 .....................................212
Component Description ........................................212
CONSULT-II Reference Value in Data Monitor Mode
.212
On Board Diagnosis Logic ....................................212
DTC Confirmation Procedure ................................213
Overall Function Check .........................................214
Wiring Diagram .....................................................215
Diagnostic Procedure ............................................218
Component Inspection ..........................................223
Removal and Installation .......................................224
DTC P0134, P0154 HO2S1 .....................................225
Component Description ........................................225
CONSULT-II Reference Value in Data Monitor Mode
.225
On Board Diagnosis Logic ....................................225
DTC Confirmation Procedure ................................226
Overall Function Check .........................................227
Wiring Diagram .....................................................228
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Diagnostic Procedure ........................................... 231
Component Inspection ......................................... 232
Removal and Installation ...................................... 234
DTC P0138, P0158 HO2S2 .................................... 235
Component Description ........................................ 235
CONSULT-II Reference Value in Data Monitor Mode
. 235
On Board Diagnosis Logic ................................... 235
DTC Confirmation Procedure ............................... 236
Wiring Diagram .................................................... 237
Diagnostic Procedure ........................................... 240
Component Inspection ......................................... 243
Removal and Installation ...................................... 244
DTC P0139, P0159 HO2S2 .................................... 245
Component Description ........................................ 245
CONSULT-II Reference Value in Data Monitor Mode
. 245
On Board Diagnosis Logic ................................... 245
DTC Confirmation Procedure ............................... 246
Overall Function Check ........................................ 246
Wiring Diagram .................................................... 248
Diagnostic Procedure ........................................... 251
Component Inspection ......................................... 254
Removal and Installation ...................................... 256
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION .............................................................. 257
On Board Diagnosis Logic ................................... 257
DTC Confirmation Procedure ............................... 257
Wiring Diagram .................................................... 259
Diagnostic Procedure ........................................... 261
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION .............................................................. 266
On Board Diagnosis Logic ................................... 266
DTC Confirmation Procedure ............................... 266
Wiring Diagram .................................................... 268
Diagnostic Procedure ........................................... 270
DTC P0181 FTT SENSOR ...................................... 274
Component Description ........................................ 274
On Board Diagnosis Logic ................................... 274
DTC Confirmation Procedure ............................... 274
Wiring Diagram .................................................... 276
Diagnostic Procedure ........................................... 277
Component Inspection ......................................... 278
Removal and Installation ...................................... 278
DTC P0182, P0183 FTT SENSOR ......................... 279
Component Description ........................................ 279
On Board Diagnosis Logic ................................... 279
DTC Confirmation Procedure ............................... 279
Wiring Diagram .................................................... 280
Diagnostic Procedure ........................................... 281
Component Inspection ......................................... 282
Removal and Installation ...................................... 282
DTC P0222, P0223 TP SENSOR ........................... 283
Component Description ........................................ 283
CONSULT-II Reference Value in Data Monitor Mode
. 283
On Board Diagnosis Logic ................................... 283
DTC Confirmation Procedure ............................... 284
Wiring Diagram .................................................... 285
Diagnostic Procedure ...........................................286
Component Inspection ..........................................289
Removal and Installation ......................................289
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 6 CYLINDER MISFIRE .....................290
On Board Diagnosis Logic ....................................290
DTC Confirmation Procedure ...............................290
Diagnostic Procedure ...........................................291
DTC P0327, P0328 KS ...........................................296
Component Description ........................................296
On Board Diagnosis Logic ....................................296
DTC Confirmation Procedure ...............................296
Wiring Diagram .....................................................297
Diagnostic Procedure ...........................................298
Component Inspection ..........................................299
Removal and Installation ......................................300
DTC P0335 CKP SENSOR (POS) ..........................301
Component Description ........................................301
CONSULT-II Reference Value in Data Monitor Mode
.301
On Board Diagnosis Logic ....................................301
DTC Confirmation Procedure ...............................301
Wiring Diagram .....................................................302
Diagnostic Procedure ...........................................303
Component Inspection ..........................................306
Removal and Installation ......................................306
DTC P0340, P0345 CMP SENSOR (PHASE) ........307
Component Description ........................................307
CONSULT-II Reference Value in Data Monitor Mode
.307
On Board Diagnosis Logic ....................................307
DTC Confirmation Procedure ...............................307
Wiring Diagram .....................................................308
Diagnostic Procedure ...........................................311
Component Inspection ..........................................314
Removal and Installation ......................................314
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ........................................................................315
On Board Diagnosis Logic ....................................315
DTC Confirmation Procedure ...............................315
Overall Function Check ........................................316
Diagnostic Procedure ...........................................317
DTC P0441 EVAP CONTROL SYSTEM .................320
System Description ...............................................320
On Board Diagnosis Logic ....................................320
DTC Confirmation Procedure ...............................320
Overall Function Check ........................................321
Diagnostic Procedure ...........................................322
DTC P0442 EVAP CONTROL SYSTEM .................325
On Board Diagnosis Logic ....................................325
DTC Confirmation Procedure ...............................326
Diagnostic Procedure ...........................................328
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ......................335
Description ............................................................335
CONSULT-II Reference Value in Data Monitor Mode
.335
On Board Diagnosis Logic ....................................336
DTC Confirmation Procedure ...............................336
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Wiring Diagram .....................................................337
Diagnostic Procedure ...........................................339
Component Inspection ..........................................340
Removal and Installation ......................................341
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE .....................................................................342
Component Description ........................................342
CONSULT-II Reference Value in Data Monitor Mode
.342
On Board Diagnosis Logic ....................................342
DTC Confirmation Procedure ...............................343
Wiring Diagram .....................................................344
Diagnostic Procedure ...........................................345
Component Inspection ..........................................347
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ..................................................................349
Component Description ........................................349
CONSULT-II Reference Value in Data Monitor Mode
.349
On Board Diagnosis Logic ....................................349
DTC Confirmation Procedure ...............................350
Diagnostic Procedure ...........................................350
Component Inspection ..........................................351
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ..................................................................352
Component Description ........................................352
CONSULT-II Reference Value in Data Monitor Mode
.352
On Board Diagnosis Logic ....................................352
DTC Confirmation Procedure ...............................353
Wiring Diagram .....................................................354
Diagnostic Procedure ...........................................355
Component Inspection ..........................................357
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ..................................................................358
Component Description ........................................358
CONSULT-II Reference Value in Data Monitor Mode
.358
On Board Diagnosis Logic ....................................358
DTC Confirmation Procedure ...............................359
Wiring Diagram .....................................................360
Diagnostic Procedure ...........................................361
Component Inspection ..........................................365
DTC P0455 EVAP CONTROL SYSTEM .................366
On Board Diagnosis Logic ....................................366
DTC Confirmation Procedure ...............................367
Diagnostic Procedure ...........................................368
DTC P0456 EVAP CONTROL SYSTEM .................374
On Board Diagnosis Logic ....................................374
DTC Confirmation Procedure ...............................375
Overall Function Check ........................................376
Diagnostic Procedure ...........................................377
DTC P0460 FUEL LEVEL SENSOR .......................384
Component Description ........................................384
On Board Diagnosis Logic ....................................384
DTC Confirmation Procedure ...............................384
Diagnostic Procedure ...........................................385
Removal and Installation ......................................385
DTC P0461 FUEL LEVEL SENSOR .......................386
Component Description ........................................386
On Board Diagnosis Logic ....................................386
Overall Function Check .........................................386
Diagnostic Procedure ............................................387
Removal and Installation .......................................387
DTC P0462 FUEL LEVEL SENSOR .......................388
Component Description ........................................388
On Board Diagnosis Logic ....................................388
DTC Confirmation Procedure ................................388
Diagnostic Procedure ............................................389
Removal and Installation .......................................389
DTC P0500 VSS ......................................................390
Description ............................................................390
On Board Diagnosis Logic ....................................390
DTC Confirmation Procedure ................................390
Overall Function Check .........................................391
Diagnostic Procedure ............................................391
DTC P0506 ISC SYSTEM .......................................392
Description ............................................................392
On Board Diagnosis Logic ....................................392
DTC Confirmation Procedure ................................392
Diagnostic Procedure ............................................393
DTC P0507 ISC SYSTEM .......................................394
Description ............................................................394
On Board Diagnosis Logic ....................................394
DTC Confirmation Procedure ................................394
Diagnostic Procedure ............................................395
DTC P0550 PSP SENSOR ......................................396
Component Description ........................................396
CONSULT-II Reference Value in Data Monitor Mode
.396
On Board Diagnosis Logic ....................................396
DTC Confirmation Procedure ................................396
Wiring Diagram .....................................................397
Diagnostic Procedure ............................................398
Component Inspection ..........................................400
DTC P0605 ECM .....................................................401
Component Description ........................................401
On Board Diagnosis Logic ....................................401
DTC Confirmation Procedure ................................401
Diagnostic Procedure ............................................402
DTC P1065 ECM POWER SUPPLY ........................404
Component Description ........................................404
On Board Diagnosis Logic ....................................404
DTC Confirmation Procedure ................................404
Wiring Diagram .....................................................405
Diagnostic Procedure ............................................406
DTC P1111, P1136 IVT CONTROL SOLENOID
VALVE ......................................................................408
Component Description ........................................408
CONSULT-II Reference Value in Data Monitor Mode
.408
On Board Diagnosis Logic ....................................408
DTC Confirmation Procedure ................................408
Wiring Diagram .....................................................409
Diagnostic Procedure ............................................412
Component Inspection ..........................................414
Removal and Installation .......................................414
DTC P1121 ELECTRIC THROTTLE CONTROL
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ACTUATOR ............................................................ 415
Component Description ........................................ 415
On Board Diagnosis Logic ................................... 415
DTC Confirmation Procedure ............................... 415
Diagnostic Procedure ........................................... 416
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................. 417
Description ........................................................... 417
On Board Diagnosis Logic ................................... 417
DTC Confirmation Procedure ............................... 417
Wiring Diagram .................................................... 418
Diagnostic Procedure ........................................... 419
Component Inspection ......................................... 422
Remove and Installation ....................................... 422
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .................................................................... 423
Component Description ........................................ 423
CONSULT-II Reference Value in Data Monitor Mode
. 423
On Board Diagnosis Logic ................................... 423
DTC Confirmation Procedure ............................... 423
Wiring Diagram .................................................... 425
Diagnostic Procedure ........................................... 426
DTC P1128 THROTTLE CONTROL MOTOR ........ 428
Component Description ........................................ 428
On Board Diagnosis Logic ................................... 428
DTC Confirmation Procedure ............................... 428
Wiring Diagram .................................................... 429
Diagnostic Procedure ........................................... 430
Component Inspection ......................................... 431
Removal and Installation ...................................... 432
DTC P1143, P1163 HO2S1 ..................................... 433
Component Description ........................................ 433
CONSULT-II Reference Value in Data Monitor Mode
. 433
On Board Diagnosis Logic ................................... 433
DTC Confirmation Procedure ............................... 434
Overall Function Check ........................................ 435
Diagnostic Procedure ........................................... 435
Component Inspection ......................................... 437
Removal and Installation ...................................... 438
DTC P1144, P1164 HO2S1 ..................................... 439
Component Description ........................................ 439
CONSULT-II Reference Value in Data Monitor Mode
. 439
On Board Diagnosis Logic ................................... 439
DTC Confirmation Procedure ............................... 440
Overall Function Check ........................................ 441
Diagnostic Procedure ........................................... 441
Component Inspection ......................................... 443
Removal and Installation ...................................... 445
DTC P1146, P1166 HO2S2 ..................................... 446
Component Description ........................................ 446
CONSULT-II Reference Value in Data Monitor Mode
. 446
On Board Diagnosis Logic ................................... 446
DTC Confirmation Procedure ............................... 447
Overall Function Check ........................................ 447
Wiring Diagram .................................................... 449
Diagnostic Procedure ...........................................452
Component Inspection ..........................................455
Removal and Installation ......................................457
DTC P1147, P1167 HO2S2 .....................................458
Component Description ........................................458
CONSULT-II Reference Value in Data Monitor Mode
.458
On Board Diagnosis Logic ....................................458
DTC Confirmation Procedure ...............................459
Overall Function Check ........................................459
Wiring Diagram .....................................................461
Diagnostic Procedure ...........................................464
Component Inspection ..........................................467
Removal and Installation ......................................469
DTC P1148, P1168 CLOSED LOOP CONTROL ....470
On Board Diagnosis Logic ....................................470
DTC Confirmation Procedure ...............................470
Overall Function Check ........................................471
Diagnostic Procedure ...........................................471
DTC P1211 TCS CONTROL UNIT ..........................472
Description ............................................................472
On Board Diagnosis Logic ....................................472
DTC Confirmation Procedure ...............................472
Diagnostic Procedure ...........................................472
DTC P1212 TCS COMMUNICATION LINE ............473
Description ............................................................473
On Board Diagnosis Logic ....................................473
DTC Confirmation Procedure ...............................473
Diagnostic Procedure ...........................................473
DTC P1217 ENGINE OVER TEMPERATURE ........474
Description ............................................................474
CONSULT-II Reference Value in Data Monitor Mode
.475
On Board Diagnosis Logic ....................................475
Overall Function Check ........................................476
Wiring Diagram .....................................................478
Diagnostic Procedure ...........................................480
Main 12 Causes of Overheating ...........................484
Component Inspection ..........................................485
DTC P1225 TP SENSOR ........................................486
Component Description ........................................486
On Board Diagnosis Logic ....................................486
DTC Confirmation Procedure ...............................486
Diagnostic Procedure ...........................................487
Removal and Installation ......................................487
DTC P1226 TP SENSOR ........................................488
Component Description ........................................488
On Board Diagnosis Logic ....................................488
DTC Confirmation Procedure ...............................488
Diagnostic Procedure ...........................................489
Removal and Installation ......................................489
DTC P1229 SENSOR POWER SUPPLY ................490
On Board Diagnosis Logic ....................................490
DTC Confirmation Procedure ...............................490
Wiring Diagram .....................................................491
Diagnostic Procedure ...........................................492
DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ...............................495
Description ............................................................495
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CONSULT-II Reference Value in Data Monitor Mode
.495
On Board Diagnosis Logic ....................................496
DTC Confirmation Procedure ...............................496
Wiring Diagram .....................................................497
Diagnostic Procedure ...........................................499
Component Inspection ..........................................501
Removal and Installation ......................................502
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .....................................................................503
Component Description ........................................503
CONSULT-II Reference Value in Data Monitor Mode
.503
On Board Diagnosis Logic ....................................503
DTC Confirmation Procedure ...............................504
Wiring Diagram .....................................................505
Diagnostic Procedure ...........................................506
Component Inspection ..........................................508
DTC P1564 ASCD STEERING SWITCH ................510
Component Description ........................................510
CONSULT-II Reference Value in Data Monitor Mode
.510
On Board Diagnosis Logic ....................................510
DTC Confirmation Procedure ...............................511
Wiring Diagram .....................................................512
Diagnostic Procedure ...........................................514
Component Inspection ..........................................516
DTC P1572 ASCD BRAKE SWITCH ......................517
Component Description ........................................517
CONSULT-II Reference Value in Data Monitor Mode
.517
On Board Diagnosis Logic ....................................517
DTC confirmation Procedure ................................518
Wiring Diagram .....................................................519
Diagnostic Procedure ...........................................521
Component Inspection ..........................................531
DTC P1574 ASCD VEHICLE SPEED SENSOR .....533
Component Description ........................................533
On Board Diagnosis Logic ....................................533
DTC Confirmation Procedure ...............................533
Diagnostic Procedure ...........................................534
DTC P1706 PNP SWITCH ......................................535
Component Description ........................................535
CONSULT-II Reference Value in Data Monitor Mode
.535
On Board Diagnosis Logic ....................................535
DTC Confirmation Procedure ...............................535
Overall Function Check ........................................536
Wiring Diagram .....................................................537
Diagnostic Procedure ...........................................540
DTC P1805 BRAKE SWITCH .................................544
Description ............................................................544
CONSULT-II Reference Value in Data Monitor Mode
.544
On Board Diagnosis Logic ....................................544
DTC Confirmation Procedure ...............................544
Wiring Diagram .....................................................545
Diagnostic Procedure ...........................................546
Component Inspection ..........................................549
DTC P2122, P2123 APP SENSOR .........................550
Component Description ........................................550
CONSULT-II Reference Value in Data Monitor Mode
.550
On Board Diagnosis Logic ....................................550
DTC Confirmation Procedure ................................551
Wiring Diagram .....................................................552
Diagnostic Procedure ............................................553
Component Inspection ..........................................555
Removal and Installation .......................................556
DTC P2127, P2128 APP SENSOR .........................557
Component Description ........................................557
CONSULT-II Reference Value in Data Monitor Mode
.557
On Board Diagnosis Logic ....................................557
DTC Confirmation Procedure ................................558
Wiring Diagram .....................................................559
Diagnostic Procedure ............................................560
Component Inspection ..........................................563
Removal and Installation .......................................563
DTC P2135 TP SENSOR ........................................564
Component Description ........................................564
CONSULT-II Reference Value in Data Monitor Mode
.564
On Board Diagnosis Logic ....................................564
DTC Confirmation Procedure ................................565
Wiring Diagram .....................................................566
Diagnostic Procedure ............................................567
Component Inspection ..........................................570
Removal and Installation .......................................570
DTC P2138 APP SENSOR ......................................571
Component Description ........................................571
CONSULT-II Reference Value in Data Monitor Mode
.571
On Board Diagnosis Logic ....................................571
DTC Confirmation Procedure ................................572
Wiring Diagram .....................................................573
Diagnostic Procedure ............................................574
Component Inspection ..........................................579
Removal and Installation .......................................579
IGNITION SIGNAL ..................................................580
Component Description ........................................580
Wiring Diagram .....................................................581
Diagnostic Procedure ............................................586
Component Inspection ..........................................591
Removal and Installation .......................................591
INJECTOR CIRCUIT ...............................................592
Component Description ........................................592
CONSULT-II Reference Value in Data Monitor Mode
.592
Wiring Diagram .....................................................593
Diagnostic Procedure ............................................595
Component Inspection ..........................................597
Removal and Installation .......................................597
FUEL PUMP CIRCUIT .............................................598
Description ............................................................598
CONSULT-II Reference Value in Data Monitor Mode
.598
Wiring Diagram .....................................................599
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Diagnostic Procedure ........................................... 600
Component Inspection ......................................... 603
Removal and Installation ...................................... 603
REFRIGERANT PRESSURE SENSOR ................. 604
Component Description ........................................ 604
Wiring Diagram .................................................... 605
Diagnostic Procedure ........................................... 606
Removal and Installation ...................................... 608
ELECTRICAL LOAD SIGNAL ................................ 609
Description ........................................................... 609
CONSULT-II Reference Value in Data Monitor Mode
. 609
Diagnostic Procedure ........................................... 609
ASCD BRAKE SWITCH ......................................... 610
Component Description ........................................ 610
CONSULT-II Reference Value in Data Monitor Mode
. 610
Wiring Diagram .....................................................611
Diagnostic Procedure ........................................... 613
Component Inspection ......................................... 623
ASCD INDICATOR ................................................. 625
Component Description ........................................ 625
CONSULT-II Reference Value in Data Monitor Mode
. 625
Wiring Diagram .................................................... 626
Diagnostic Procedure ........................................... 627
MIL AND DATA LINK CONNECTOR ..................... 628
Wiring Diagram .................................................... 628
EVAPORATIVE EMISSION SYSTEM ..................... 630
Description ............................................................630
Component Inspection ..........................................633
Removal and Installation ......................................634
How to Detect Fuel Vapor Leakage ......................634
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ....................................................................637
System Description ...............................................637
Diagnostic Procedure ...........................................638
Component Inspection ..........................................640
POSITIVE CRANKCASE VENTILATION ...............642
Description ............................................................642
Component Inspection ..........................................642
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .644
System Description ...............................................644
Component Description ........................................645
SERVICE DATA AND SPECIFICATIONS (SDS) ....646
Fuel Pressure .......................................................646
Idle Speed and Ignition Timing .............................646
Calculated Load Value ..........................................646
Mass Air Flow Sensor ...........................................646
Intake Air Temperature Sensor .............................646
Engine Coolant Temperature Sensor ...................646
Heated Oxygen Sensor 1 Heater .........................646
Heated Oxygen Sensor 2 Heater .........................646
Crankshaft Position Sensor (POS) .......................646
Camshaft Position Sensor (PHASE) ....................646
Throttle Control Motor ...........................................647
Injector ..................................................................647
Fuel Pump ............................................................647
EC-8
INDEX FOR DTC
Revision; 2004 April 2003 G35 Coupe
INDEX FOR DTC PFP:00024
Alphabetical Index ABS0036X
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-140, "DTC U1000, U1001 CAN COMMUNICATION LINE" . ×:Applicable —: Not applicable
Items
(CONSULT-II screen terms)
DTC*1
Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
A/T INTERLOCK P1730 1730 1 ×AT-159
A/T TCC S/V FNCTN P0744 0744 2 ×AT-122
APP SEN 1/CIRC P2122 2122 1 ×EC-550
APP SEN 1/CIRC P2123 2123 1 ×EC-550
APP SEN 2/CIRC P2127 2127 1 ×EC-557
APP SEN 2/CIRC P2128 2128 1 ×EC-557
APP SENSOR P2138 2138 1 ×EC-571
ASCD BRAKE SW P1572 1572 1 EC-517
ASCD SW P1564 1564 1 EC-510
ASCD VHL SPD SEN P1574 1574 1 EC-533
ATF TEMP SEN/CIRC P0710 0710 2 ×AT-146
BRAKE SW/CIRCUIT P1805 1805 2 EC-544
CAN COMM CIRCUIT U1000 1000*51×EC-140
CAN COMM CIRCUIT U1001 1001*52—EC-140
CKP SEN/CIRCUIT P0335 0335 2 ×EC-301
CLOSED LOOP-B1 P1148 1148 1 ×EC-470
CLOSED LOOP-B2 P1168 1168 1 ×EC-470
CMP SEN/CIRC-B1 P0340 0340 2 ×EC-307
CMP SEN/CIRC-B2 P0345 0345 2 ×EC-307
CTP LEARNING P1225 1225 2 EC-486
CTP LEARNING P1226 1226 2 EC-488
CYL 1 MISFIRE P0301 0301 2 ×EC-290
CYL 2 MISFIRE P0302 0302 2 ×EC-290
CYL 3 MISFIRE P0303 0303 2 ×EC-290
CYL 4 MISFIRE P0304 0304 2 ×EC-290
CYL 5 MISFIRE P0305 0305 2 ×EC-290
CYL 6 MISFIRE P0306 0306 2 ×EC-290
D/C SOLENOID/CIRC P1762 1762 1 ×AT-189
D/C SOLENOID FNCTN P1764 1764 1 ×AT-194
ECM P0605 0605 1 or 2 × or — EC-401
ECM BACK UP/CIRCUIT P1065 1065 2 ×EC-404
ECT SEN/CIRCUIT P0117 0117 1 ×EC-182
ECT SEN/CIRCUIT P0118 0118 1 ×EC-182
ECT SENSOR P0125 0125 1 ×EC-194
ENG OVER TEMP P1217 1217 1 ×EC-474
ENGINE SPEED SIG P0725 0725 2 ×AT-115
ETC ACTR P1121 1121 1 ×EC-415
INDEX FOR DTC
EC-9
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April 2003 G35 Coupe
ETC FUNCTION/CIRC P1122 1122 1 ×EC-417
ETC MOT P1128 1128 1 ×EC-428
ETC MOT PWR P1124 1124 1 ×EC-423
ETC MOT PWR P1126 1126 1 ×EC-423
EVAP GROSS LEAK P0455 0455 2 ×EC-366
EVAP PURG FLOW/MON P0441 0441 2 ×EC-320
EVAP SMALL LEAK P0442 0442 2 ×EC-325
EVAP SYS PRES SEN P0451 0451 2 ×EC-349
EVAP SYS PRES SEN P0452 0452 2 ×EC-352
EVAP SYS PRES SEN P0453 0453 2 ×EC-358
EVAP VERY SML LEAK P0456 0456 2 ×EC-374
FR/B SOLENOID/CIRC P1757 1757 1 ×AT-179
FR/B SOLENOID FNCT P1759 1759 1 ×AT-184
FTT SEN/CIRCUIT P0182 0182 2 ×EC-279
FTT SEN/CIRCUIT P0183 0183 2 ×EC-279
FTT SENSOR P0181 0181 2 ×EC-274
FUEL LEV SEN SLOSH P0460 0460 2 ×EC-384
FUEL LEVEL SENSOR P0461 0461 2 ×EC-386
FUEL LEVL SEN/CIRC P0462 0462 2 ×EC-388
FUEL SYS-LEAN-B1 P0171 0171 2 ×EC-257
FUEL SYS-LEAN-B2 P0174 0174 2 ×EC-257
FUEL SYS-RICH-B1 P0172 0172 2 ×EC-266
FUEL SYS-RICH-B2 P0175 0175 2 ×EC-266
HLR/C SOL FNCTN P1769 1769 1 ×AT-203
HLR/C SOL/CIRC P1767 1767 1 ×AT-198
HO2S1 (B1) P0132 0132 2 ×EC-202
HO2S1 (B1) P0133 0133 2 ×EC-212
HO2S1 (B1) P0134 0134 2 ×EC-225
HO2S1 (B1) P1143 1143 2 ×EC-433
HO2S1 (B1) P1144 1144 2 ×EC-439
HO2S1 (B2) P0152 0152 2 ×EC-202
HO2S1 (B2) P0153 0153 2 ×EC-212
HO2S1 (B2) P0154 0154 2 ×EC-225
HO2S1 (B2) P1163 1163 2 ×EC-433
HO2S1 (B2) P1164 1164 2 ×EC-439
HO2S1 HTR (B1) P0031 0031 2 ×EC-146
HO2S1 HTR (B1) P0032 0032 2 ×EC-146
HO2S1 HTR (B2) P0051 0051 2 ×EC-146
HO2S1 HTR (B2) P0052 0052 2 ×EC-146
HO2S2 (B1) P0138 0138 2 ×EC-235
HO2S2 (B1) P0139 0139 2 ×EC-245
HO2S2 (B1) P1146 1146 2 ×EC-446
Items
(CONSULT-II screen terms)
DTC*1
Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
EC-10
INDEX FOR DTC
Revision; 2004 April 2003 G35 Coupe
HO2S2 (B1) P1147 1147 2 ×EC-458
HO2S2 (B2) P0158 0158 2 ×EC-235
HO2S2 (B2) P0159 0159 2 ×EC-245
HO2S2 (B2) P1166 1166 2 ×EC-446
HO2S2 (B2) P1167 1167 2 ×EC-458
HO2S2 HTR (B1) P0037 0037 2 ×EC-154
HO2S2 HTR (B1) P0038 0038 2 ×EC-154
HO2S2 HTR (B2) P0057 0057 2 ×EC-154
HO2S2 HTR (B2) P0058 0058 2 ×EC-154
I/C SOLENOID/CIRC P1752 1752 1 ×AT-170
I/C SOLENOID FNCTN P1754 1754 1 ×AT-175
IAT SEN/CIRCUIT P0112 0112 2 ×EC-177
IAT SEN/CIRCUIT P0113 0113 2 ×EC-177
IAT SENSOR P0127 0127 2 ×EC-197
INT/V TIM CONT-B1 P0011 0011 2 ×EC-143
INT/V TIM CONT-B2 P0021 0021 2 ×EC-143
INT/V TIM V/CIR-B1 P1111 1111 2 ×EC-408
INT/V TIM V/CIR-B2 P1136 1136 2 ×EC-408
ISC SYSTEM P0506 0506 2 ×EC-392
ISC SYSTEM P0507 0507 2 ×EC-394
KNOCK SEN/CIRC-B1 P0327 0327 2 EC-296
KNOCK SEN/CIRC-B1 P0328 0328 2 EC-296
L/PRESS SOL/CIRC P0745 0745 2 ×AT-127
LC/B SOLENOID FNCT P1774 1774 1 ×AT-213
LC/B SOLENOID/CIRC P1772 1772 1 ×AT-208
MAF SEN/CIRCUIT P0101 0101 1 ×EC-162
MAF SEN/CIRCUIT P0102 0102 1 ×EC-170
MAF SEN/CIRCUIT P0103 0103 1 ×EC-170
MULTI CYL MISFIRE P0300 0300 2 ×EC-290
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 EC-66
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
No DTC Flashing*4Flashing*4EC-67
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. P0000 0000 ——
P-N POS SW/CIRCUIT P1706 1706 2 ×EC-535
PNP SW/CIRC P0705 0705 2 ×AT-105
PURG VOLUME CONT/V P0444 0444 2 ×EC-335
PURG VOLUME CONT/V P0445 0445 2 ×EC-335
PURG VOLUME CONT/V P1444 1444 2 ×EC-495
PW ST P SEN/CIRC P0550 0550 2 EC-396
SENSOR POWER/CIRC P1229 1229 1 ×EC-490
TCC SOLENOID/CIRC P0740 0740 2 ×AT-117
Items
(CONSULT-II screen terms)
DTC*1
Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
INDEX FOR DTC
EC-11
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April 2003 G35 Coupe
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
TCS C/U FUNCTN P1211 1211 2 EC-472
TCS/CIRC P1212 1212 2 — EC-473
THERMSTAT FNCTN P0128 0128 2 ×EC-200
TP SEN 1/CIRC P0222 0222 1 ×EC-283
TP SEN 1/CIRC P0223 0223 1 ×EC-283
TP SEN 2/CIRC P0122 0122 1 ×EC-187
TP SEN 2/CIRC P0123 0123 1 ×EC-187
TP SEN/CIRC A/T P1705 1705 1 ×AT-144
TP SENSOR P2135 2135 1 ×EC-564
TURBINE REV S/CIRC P1716 1716 2 ×AT-152
TW CATALYST SYS-B1 P0420 0420 2 ×EC-315
TW CATALYST SYS-B2 P0430 0430 2 ×EC-315
VEH SPD SEN/CIR AT*6P0720 0720 2 ×AT-110
VEH SPEED SEN/CIRC*6P0500 0500 2 ×EC-390
VENT CONTROL VALVE P0447 0447 2 ×EC-342
VENT CONTROL VALVE P1446 1446 2 ×EC-503
Items
(CONSULT-II screen terms)
DTC*1
Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
EC-12
INDEX FOR DTC
Revision; 2004 April 2003 G35 Coupe
DTC No. Index ABS0036Y
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-140, "DTC U1000, U1001 CAN COMMUNICATION LINE" . ×:Applicable —: Not applicable
DTC*1
Items
(CONSULT-II screen terms) Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
No DTC Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
Flashing*4EC-67
U1000 1000*5CAN COMM CIRCUIT 1 ×EC-140
U1001 1001*5CAN COMM CIRCUIT 2 EC-140
P0000 0000 NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. ——
P0011 0011 INT/V TIM CONT-B1 2 ×EC-143
P0021 0021 INT/V TIM CONT-B2 2 ×EC-143
P0031 0031 HO2S1 HTR (B1) 2 ×EC-146
P0032 0032 HO2S1 HTR (B1) 2 ×EC-146
P0037 0037 HO2S2 HTR (B1) 2 ×EC-154
P0038 0038 HO2S2 HTR (B1) 2 ×EC-154
P0051 0051 HO2S1 HTR (B2) 2 ×EC-146
P0052 0052 HO2S1 HTR (B2) 2 ×EC-146
P0057 0057 HO2S2 HTR (B2) 2 ×EC-154
P0058 0058 HO2S2 HTR (B2) 2 ×EC-154
P0101 0101 MAF SEN/CIRCUIT 1 ×EC-162
P0102 0102 MAF SEN/CIRCUIT 1 ×EC-170
P0103 0103 MAF SEN/CIRCUIT 1 ×EC-170
P0112 0112 IAT SEN/CIRCUIT 2 ×EC-177
P0113 0113 IAT SEN/CIRCUIT 2 ×EC-177
P0117 0117 ECT SEN/CIRCUIT 1 ×EC-182
P0118 0118 ECT SEN/CIRCUIT 1 ×EC-182
P0122 0122 TP SEN 2/CIRC 1 ×EC-187
P0123 0123 TP SEN 2/CIRC 1 ×EC-187
P0125 0125 ECT SENSOR 1 ×EC-194
P0127 0127 IAT SENSOR 2 ×EC-197
P0128 0128 THERMSTAT FNCTN 2 ×EC-200
P0132 0132 HO2S1 (B1) 2 ×EC-202
P0133 0133 HO2S1 (B1) 2 ×EC-212
P0134 0134 HO2S1 (B1) 2 ×EC-225
P0138 0138 HO2S2 (B1) 2 ×EC-235
P0139 0139 HO2S2 (B1) 2 ×EC-245
P0152 0152 HO2S1 (B2) 2 ×EC-202
P0153 0153 HO2S1 (B2) 2 ×EC-212
P0154 0154 HO2S1 (B2) 2 ×EC-225
P0158 0158 HO2S2 (B2) 2 ×EC-235
INDEX FOR DTC
EC-13
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April 2003 G35 Coupe
P0159 0159 HO2S2 (B2) 2 ×EC-245
P0171 0171 FUEL SYS-LEAN-B1 2 ×EC-257
P0172 0172 FUEL SYS-RICH-B1 2 ×EC-266
P0174 0174 FUEL SYS-LEAN-B2 2 ×EC-257
P0175 0175 FUEL SYS-RICH-B2 2 ×EC-266
P0181 0181 FTT SENSOR 2 ×EC-274
P0182 0182 FTT SEN/CIRCUIT 2 ×EC-279
P0183 0183 FTT SEN/CIRCUIT 2 ×EC-279
P0222 0222 TP SEN 1/CIRC 1 ×EC-283
P0223 0223 TP SEN 1/CIRC 1 ×EC-283
P0300 0300 MULTI CYL MISFIRE 2 ×EC-290
P0301 0301 CYL 1 MISFIRE 2 ×EC-290
P0302 0302 CYL 2 MISFIRE 2 ×EC-290
P0303 0303 CYL 3 MISFIRE 2 ×EC-290
P0304 0304 CYL 4 MISFIRE 2 ×EC-290
P0305 0305 CYL 5 MISFIRE 2 ×EC-290
P0306 0306 CYL 6 MISFIRE 2 ×EC-290
P0327 0327 KNOCK SEN/CIRC-B1 2 EC-296
P0328 0328 KNOCK SEN/CIRC-B1 2 EC-296
P0335 0335 CKP SEN/CIRCUIT 2 ×EC-301
P0340 0340 CMP SEN/CIRC-B1 2 ×EC-307
P0345 0345 CMP SEN/CIRC-B2 2 ×EC-307
P0420 0420 TW CATALYST SYS-B1 2 ×EC-315
P0430 0430 TW CATALYST SYS-B2 2 ×EC-315
P0441 0441 EVAP PURG FLOW/MON 2 ×EC-320
P0442 0442 EVAP SMALL LEAK 2 ×EC-325
P0444 0444 PURG VOLUME CONT/V 2 ×EC-335
P0445 0445 PURG VOLUME CONT/V 2 ×EC-335
P0447 0447 VENT CONTROL VALVE 2 ×EC-342
P0451 0451 EVAP SYS PRES SEN 2 ×EC-349
P0452 0452 EVAP SYS PRES SEN 2 ×EC-352
P0453 0453 EVAP SYS PRES SEN 2 ×EC-358
P0455 0455 EVAP GROSS LEAK 2 ×EC-366
P0456 0456 EVAP VERY SML LEAK 2 ×EC-374
P0460 0460 FUEL LEV SEN SLOSH 2 ×EC-384
P0461 0461 FUEL LEVEL SENSOR 2 ×EC-386
P0462 0462 FUEL LEVL SEN/CIRC 2 ×EC-388
P0500 0500 VEH SPEED SEN/CIRC*62×EC-390
P0506 0506 ISC SYSTEM 2 ×EC-392
P0507 0507 ISC SYSTEM 2 ×EC-394
P0550 0550 PW ST P SEN/CIRC 2 EC-396
P0605 0605 ECM 1 or 2 × or EC-401
DTC*1
Items
(CONSULT-II screen terms) Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
EC-14
INDEX FOR DTC
Revision; 2004 April 2003 G35 Coupe
P0705 0705 PNP SW/CIRC 2 ×AT-105
P0710 0710 ATF TEMP SEN/CIRC 2 ×AT-146
P0720 0720 VEH SPD SEN/CIR AT*62×AT-110
P0725 0725 ENGINE SPEED SIG 2 ×AT-115
P0740 0740 TCC SOLENOID/CIRC 2 ×AT-117
P0744 0744 A/T TCC S/V FNCTN 2 ×AT-122
P0745 0745 L/PRESS SOL/CIRC 2 ×AT-127
P1065 1065 ECM BACK UP/CIRCUIT 2 ×EC-404
P1111 1111 INT/V TIM V/CIR-B1 2 ×EC-408
P1121 1121 ETC ACTR 1 ×EC-415
P1122 1122 ETC FUNCTION/CIRC 1 ×EC-417
P1124 1124 ETC MOT PWR 1 ×EC-423
P1126 1126 ETC MOT PWR 1 ×EC-423
P1128 1128 ETC MOT 1 ×EC-428
P1136 1136 INT/V TIM V/CIR-B2 2 ×EC-408
P1143 1143 HO2S1 (B1) 2 ×EC-433
P1144 1144 HO2S1 (B1) 2 ×EC-439
P1146 1146 HO2S2 (B1) 2 ×EC-446
P1147 1147 HO2S2 (B1) 2 ×EC-458
P1148 1148 CLOSED LOOP-B1 1 ×EC-470
P1163 1163 HO2S1 (B2) 2 ×EC-433
P1164 1164 HO2S1 (B2) 2 ×EC-439
P1166 1166 HO2S2 (B2) 2 ×EC-446
P1167 1167 HO2S2 (B2) 2 ×EC-458
P1168 1168 CLOSED LOOP-B2 1 ×EC-470
P1211 1211 TCS C/U FUNCTN 2 EC-472
P1212 1212 TCS/CIRC 2 EC-473
P1217 1217 ENG OVER TEMP 1 ×EC-474
P1225 1225 CTP LEARNING 2 EC-486
P1226 1226 CTP LEARNING 2 EC-488
P1229 1229 SENSOR POWER/CIRC 1 ×EC-490
P1444 1444 PURG VOLUME CONT/V 2 ×EC-495
P1446 1446 VENT CONTROL VALVE 2 ×EC-503
P1564 1564 ASCD SW 1 EC-510
P1572 1572 ASCD BRAKE SW 1 EC-517
P1574 1574 ASCD VHL SPD SEN 1 EC-533
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 EC-66
P1705 1705 TP SEN/CIRC A/T 1 ×AT-144
P1706 1706 P-N POS SW/CIRCUIT 2 ×EC-535
P1716 1716 TURBINE REV S/CIRC 2 ×AT-152
P1730 1730 A/T INTERLOCK 1 ×AT-159
P1752 1752 I/C SOLENOID/CIRC 1 ×AT-170
DTC*1
Items
(CONSULT-II screen terms) Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
INDEX FOR DTC
EC-15
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April 2003 G35 Coupe
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
P1754 1754 I/C SOLENOID FNCTN 1 ×AT-175
P1757 1757 FR/B SOLENOID/CIRC 1 ×AT-179
P1759 1759 FR/B SOLENOID FNCT 1 ×AT-184
P1762 1762 D/C SOLENOID/CIRC 1 ×AT-189
P1764 1764 D/C SOLENOID FNCTN 1 ×AT-194
P1767 1767 HLR/C SOL/CIRC 1 ×AT-198
P1769 1769 HLR/C SOL FNCTN 1 ×AT-203
P1772 1772 LC/B SOLENOID/CIRC 1 ×AT-208
P1774 1774 LC/B SOLENOID FNCT 1 ×AT-213
P1805 1805 BRAKE SW/CIRCUIT 2 EC-544
P2122 2122 APP SEN 1/CIRC 1 ×EC-550
P2123 2123 APP SEN 1/CIRC 1 ×EC-550
P2127 2127 APP SEN 2/CIRC 1 ×EC-557
P2128 2128 APP SEN 2/CIRC 1 ×EC-557
P2135 2135 TP SENSOR 1 ×EC-564
P2138 2138 APP SENSOR 1 ×EC-571
DTC*1
Items
(CONSULT-II screen terms) Trip MIL lighting
up Reference page
CONSULT-II
GST*2ECM*3
EC-16
PRECAUTIONS
Revision; 2004 April 2003 G35 Coupe
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” ABS008G3
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery Service ABS00B3Q
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
On Board Diagnostic (OBD) System of Engine and A/T ABS00371
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 negative battery cable 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
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-63, "HAR-
NESS CONNECTOR" .
Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MIL to light up due to the 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 the malfunction of the EVAP system or fuel injection system,
etc.
Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PRECAUTIONS
EC-17
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April 2003 G35 Coupe
Precaution ABS00372
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect battery
ground cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.
Before removing parts, turn ignition switch OFF and then
disconnect battery ground cable.
Do not disassemble ECM.
If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.
When connecting ECM harness connector, fasten it
securely with a lever as far as it will go as shown at right.
When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.
Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.
Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.
Keep engine control system parts and harness dry.
SEF289H
PBIB1164E
SEC406D
PBIB0090E
EC-18
PRECAUTIONS
Revision; 2004 April 2003 G35 Coupe
Before replacing ECM, perform ECM Terminals and Refer-
ence Value inspection and make sure ECM functions prop-
erly. Refer to EC-98 .
Handle mass air flow sensor carefully to avoid damage.
Do not disassemble mass air flow sensor.
Do not clean mass air flow sensor with any type of deter-
gent.
Do not disassemble electric throttle control actuator.
Even a slight leak in the air intake system can cause seri-
ous incidents.
Do not shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Overall Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Overall Function
Check should be a good result if the repair is completed.
When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.
MEF040D
SEF217U
SEF348N
PRECAUTIONS
EC-19
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EC
Revision; 2004 April 2003 G35 Coupe
B1 indicates the bank 1, B2 indicates the bank 2 as shown
in the figure.
Do not operate fuel pump when there is no fuel in lines.
Tighten fuel hose clamps to the specified torque.
Do not depress accelerator pedal when starting.
Immediately after starting, do not rev up engine unneces-
sarily.
Do not rev up engine just prior to shutdown.
When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
Keep the antenna as far as possible from the electronic
control units.
Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.
Be sure to ground the radio to vehicle body.
Wiring Diagrams and Trouble Diagnosis ABS00373
When you read wiring diagrams, refer to the following:
GI-15, "How to Read Wiring Diagrams"
PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit
When you perform trouble diagnosis, refer to the following:
GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident"
SEC893C
PBIB1100E
SEF709Y
SEF708Y
EC-20
PREPARATION
Revision; 2004 April 2003 G35 Coupe
PREPARATION PFP:00002
Special Service Tools ABS00374
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
KV10117100
(J36471-A)
Heated oxygen
sensor wrench
Loosening or tightening heated oxygen sensors
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrench
Loosening or tightening heated oxygen sensors
a: 22 mm (0.87 in)
(J44321)
Fuel pressure gauge
kit
Checking fuel pressure
KV109E0010
(J-46209)
Break-out box
Measuring the ECM signals with a circuit tester
KV109E0080
(J-45819)
Y-cable adapter
Measuring the ECM signals with a circuit tester
EG17650301
(J-33984-A)
Radiator cap tester
adapter
Adapting radiator cap tester to radiator cap and
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
S-NT379
S-NT636
LEC642
S-NT825
S-NT826
S-NT564
PREPARATION
EC-21
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EC
Revision; 2004 April 2003 G35 Coupe
Commercial Service Tools ABS00375
Tool name
(Kent-Moore No.) Description
Leak detector
i.e.: (J41416)
Locating the EVAP leak
EVAP service port
adapter
i.e.: (J41413-OBD)
Applying positive pressure through EVAP service
port
Fuel filler cap adapter
i.e.: (MLR-8382)
Checking fuel tank vacuum relief valve opening
pressure
Socket wrench Removing and installing engine coolant
temperature sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12)
Reconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for
Titania Oxygen Sensor
Anti-seize lubricant
i.e.: (PermatexTM
133AR or equivalent
meeting MIL
specification MIL-A-
907)
Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
S-NT703
S-NT704
S-NT815
S-NT705
AEM488
S-NT779
EC-22
ENGINE CONTROL SYSTEM
Revision; 2004 April 2003 G35 Coupe
ENGINE CONTROL SYSTEM PFP:23710
System Diagram ABS00376
PBIB1101E
ENGINE CONTROL SYSTEM
EC-23
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Revision; 2004 April 2003 G35 Coupe
Vacuum Hose Drawing ABS00377
Refer to EC-22, "System Diagram" for Vacuum Control System. PBIB1552E
EC-24
ENGINE CONTROL SYSTEM
Revision; 2004 April 2003 G35 Coupe
System Chart ABS00378
*1: This sensor is not used to control the engine system. This is used only for the on board diagnosis.
*2: This sensor is not used to control the engine system under normal conditions.
*3: This input signal is sent to the ECM through CAN communication line.
*4: This output signal is sent from the ECM through CAN communication line.
Input (Sensor) ECM Function Output (Actuator)
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Mass air flow sensor
Engine coolant temperature sensor
Heated oxygen sensor 1
Throttle position sensor
Accelerator pedal position sensor
Park/neutral position (PNP) switch
Intake air temperature sensor
Power steering pressure sensor
Ignition switch
Battery voltage
Knock sensor
Refrigerant pressure sensor
Stop lamp switch
ASCD steering switch
ASCD brake switch
ASCD clutch switch
Fuel level sensor*1 *3
EVAP control system pressure sensor
Fuel tank temperature sensor*1
Heated oxygen sensor 2 *2
TCM (Transmission control module) *3
Air conditioner switch*3
Wheel sensor*3
Electrical load signal*3