ENGINE CONTROL SYSTEM
B ENGINE
A
EC
SECTION
INDEX FOR DTC ........................................................ 9
Alphabetical Index .................................................... 9
DTC No. Index ....................................................... 13
PRECAUTIONS ........................................................ 17
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 17
On Board Diagnostic (OBD) System of Engine and
A/T ............................ ............. ............. ............. ....... 17
Precaution ...................... ........................................ 17
Wiring Diagrams and Trouble Diagnosis ................ 20
PREPARATION ......................................................... 21
Special Service Tools ............................................. 21
Commercial Service Tools ...................................... 21
ENGINE CONTROL SYSTEM .................................. 23
System Diagram ..................................................... 23
Vacuum Hose Drawing ........................................... 24
System Chart ......................................................... 25
Multiport Fuel Injection (MFI) System .................... 26
Electronic Ignition (EI) System ............................... 28
Nissan Torque Demand (NTD) Control System ..... 29
Air Conditioning Cut Control ................................... 30
Fuel Cut Control (at No Load and High Engine
Speed) ...................... ............. ............. ............. ....... 30
CAN communication .............................................. 30
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 ............ 51
Introduction ............................................................ 51
Two Trip Detection Logic ........................................ 51
Emission-related Diagnostic Information ................ 52
IVIS (Infi niti V ehi cle Immob ilizer S ystem — N A TS) ... 65
Malfunction Indicator Lamp (MIL) ........................... 65
OBD System Operation Chart ................................ 69
ENGINE CONTROL SYSTEM
CONTENTS
TROUBLE DIAGNOSIS ............................................74
Trouble Diagnosis Introduction ...............................74
DTC Inspection Priority Chart .................................79
Fail-safe Chart ....................................... ...... ....... .... 81
Basic Inspection .....................................................82
Symptom Matrix Chart ............................................87
Engine Control Component Parts Location ............91
Circuit Diagram .......................................................97
ECM Harness Connector Terminal Layout .............99
ECM Terminals and Reference Value .....................99
CONSULT-II Function .. ...... ....... ...... ....... ...... ....... ..108
Generic Scan Tool (GST) Function .......................121
CONSULT-II Reference Value in Data Monitor Mode
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................126
TROUBLE DIAGNOSIS - SPECIFICA TION V ALUE .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
Component Inspection ..........................................140
DTC U1000, U1001 CAN COMMUNICA TION LINE .141
Description ............ ....... ...... ....... ...... ....... ...... ....... ..141
On Board Diagnosis Logic ....................................141
DTC Confirmation Procedure ...............................141
Wiring Diagram .....................................................142
Diagnostic Procedure ...........................................143
DTC P0011, P0021 IVT CONTROL ........................144
Description ............ ....... ...... ....... ...... ....... ...... ....... ..144
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................145
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DTC Confirmation Procedure ................... ....... .....146
Wiring Diagram .....................................................147
Diagnostic Procedure ...........................................151
Component Inspection ..........................................154
Removal and Installation ......................................154
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER .155
Description .......... ......................... .........................155
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................155
DTC Confirmation Procedure ................... ....... .....156
Wiring Diagram .....................................................157
Diagnostic Procedure ...........................................160
Component Inspection ..........................................162
Removal and Installation ......................................162
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .163
Description .......... ......................... .........................163
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................163
DTC Confirmation Procedure ................... ....... .....164
Wiring Diagram .....................................................165
Diagnostic Procedure ...........................................168
Component Inspection ..........................................170
Removal and Installation ......................................170
DTC P0101 MAF SENSOR .....................................171
Component Description ........................................171
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................171
DTC Confirmation Procedure ................... ....... .....172
Overall Function Check ........................................173
Wiring Diagram .....................................................174
Diagnostic Procedure ...........................................175
Component Inspection ..........................................177
Removal and Installation ......................................178
DTC P0102, P0103 MAF SENSOR .........................179
Component Description ........................................179
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................179
DTC Confirmation Procedure ................... ....... .....180
Wiring Diagram .....................................................181
Diagnostic Procedure ...........................................182
Component Inspection ..........................................184
Removal and Installation ......................................185
DTC P0112, P0113 IAT SENSOR ...........................186
Component Description ........................................186
On Board Diagnosis Logic ....................................186
DTC Confirmation Procedure ................... ....... .....186
Wiring Diagram .....................................................187
Diagnostic Procedure ...........................................188
Component Inspection ..........................................189
Removal and Installation ......................................189
DTC P0117, P0118 ECT SENSOR ..........................190
Component Description ........................................190
On Board Diagnosis Logic ....................................190
DTC Confirmation Procedure ................... ....... .....191
Wiring Diagram .....................................................192
.155
.163
.171
.179
Diagnostic Procedure ............................................193
Component Inspection ..........................................194
Removal and Installation .......................................194
DTC P0122, P0123 TP SENSOR ............................195
Component Description ........................................195
CONSULT-II Reference Value in Data Monitor Mode
.195
On Board Diagnosis Logic ....................................195
DTC Confirmation Procedure ................................196
Wiring Diagram .....................................................197
Diagnostic Procedure ............................................198
Component Inspection ..........................................200
Removal and Installation .......................................200
DTC P0125 ECT SENSOR ......................................201
Component Description ........................................201
On Board Diagnosis Logic ....................................201
DTC Confirmation Procedure ................................202
Wiring Diagram .....................................................203
Diagnostic Procedure ............................................204
Component Inspection ..........................................204
Removal and Installation .......................................204
DTC P0127 IAT SENSOR ........................................205
Component Description ........................................205
On Board Diagnosis Logic ....................................205
DTC Confirmation Procedure ................................206
Wiring Diagram .....................................................207
Diagnostic Procedure ............................................208
Component Inspection ..........................................209
Removal and Installation .......................................209
DTC P0128 THERMOSTAT FUNCTION .................210
On Board Diagnosis Logic ....................................210
DTC Confirmation Procedure ................................210
Diagnostic Procedure ............................................210
Component Inspection ..........................................211
Removal and Installation .......................................211
DTC P0132, P0152 HO2S1 .....................................212
Component Description ........................................212
CONSULT-II Reference Value in Data Monitor Mode
.212
On Board Diagnosis Logic ....................................212
DTC Confirmation Procedure ................................213
Wiring Diagram .....................................................214
Diagnostic Procedure ............................................217
Component Inspection ..........................................219
Removal and Installation .......................................220
DTC P0133, P0153 HO2S1 .....................................221
Component Description ........................................221
CONSULT-II Reference Value in Data Monitor Mode
.221
On Board Diagnosis Logic ....................................221
DTC Confirmation Procedure ................................222
Overall Function Check .........................................223
Wiring Diagram .....................................................224
Diagnostic Procedure ............................................227
Component Inspection ..........................................231
Removal and Installation .......................................232
DTC P0134, P0154 HO2S1 .....................................233
Component Description ........................................233
CONSULT-II Reference Value in Data Monitor Mode
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On Board Diagnosis Logic ................................... 233
DTC Confirmation Procedure ............................... 234
Overall Function Check ........................................ 235
Wiring Diagram .................................................... 236
Diagnostic Procedure ........................................... 239
Component Inspection ......................................... 240
Removal and Installation ...................................... 241
DTC P0138, P0158 HO2S2 .................................... 242
Component Description ........................................ 242
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 242
DTC Confirmation Procedure ............................... 243
Wiring Diagram .................................................... 244
Diagnostic Procedure ........................................... 247
Component Inspection ......................................... 250
Removal and Installation ...................................... 252
DTC P0139, P0159 HO2S2 .................................... 253
Component Description ........................................ 253
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 253
DTC Confirmation Procedure ............................... 254
Overall Function Check ........................................ 254
Wiring Diagram .................................................... 256
Diagnostic Procedure ........................................... 259
Component Inspection ......................................... 262
Removal and Installation ...................................... 264
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ........................ .......................... ............ 265
On Board Diagnosis Logic ................................... 265
DTC Confirmation Procedure ............................... 265
Wiring Diagram .................................................... 267
Diagnostic Procedure ........................................... 269
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION ........................ .......................... ............ 274
On Board Diagnosis Logic ................................... 274
DTC Confirmation Procedure ............................... 274
Wiring Diagram .................................................... 276
Diagnostic Procedure ........................................... 278
DTC P0181 FTT SENSOR ...................................... 282
Component Description ........................................ 282
On Board Diagnosis Logic ................................... 282
DTC Confirmation Procedure ............................... 282
Wiring Diagram .................................................... 284
Diagnostic Procedure ........................................... 285
Component Inspection ......................................... 286
Removal and Installation ...................................... 286
DTC P0182, P0183 FTT SENSOR ......................... 287
Component Description ........................................ 287
On Board Diagnosis Logic ................................... 287
DTC Confirmation Procedure ............................... 287
Wiring Diagram .................................................... 288
Diagnostic Procedure ........................................... 289
Component Inspection ......................................... 290
Removal and Installation ...................................... 290
DTC P0222, P0223 TP SENSOR ........................... 291
Component Description ........................................ 291
. 233
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. 253
CONSULT-II Reference Value in Data Monitor Mode
.291
On Board Diagnosis Logic ....................................291
DTC Confirmation Procedure ...............................291
Wiring Diagram .....................................................293
Diagnostic Procedure ...........................................294
Component Inspection ..........................................296
Removal and Installation ......................................296
DTC P0300 - P0308 NO. 8 - 1 CYLINDER MISFIRE,
MULTIPLE CYLINDER MISFIRE ............................297
On Board Diagnosis Logic ....................................297
DTC Confirmation Procedure ...............................298
Diagnostic Procedure ...........................................298
DTC P0327, P0328, P0332, P0333 KS ...................303
Component Description ........................................303
On Board Diagnosis Logic ....................................303
DTC Confirmation Procedure ...............................303
Wiring Diagram .....................................................304
Diagnostic Procedure ...........................................305
Component Inspection ..........................................306
Removal and Installation ......................................306
DTC P0335 CKP SENSOR (POS) ........................ ..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 P0340 CMP SENSOR (PHASE) ............ ....... ..315
Component Description ........................................315
On Board Diagnosis Logic ....................................315
DTC Confirmation Procedure ...............................315
Wiring Diagram .....................................................316
Diagnostic Procedure ...........................................317
Component Inspection ..........................................319
Removal and Installation ......................................319
DTC P0420, P0430 THREE WAY CAT AL YST FUNC-
TION ..................................... ...................................320
On Board Diagnosis Logic ....................................320
DTC Confirmation Procedure ...............................320
Overall Function Check ........................................321
Diagnostic Procedure ...........................................322
DTC P0441 EVAP CONTROL SYSTEM .. ...... ....... ..325
System Description ...............................................325
On Board Diagnosis Logic ....................................325
DTC Confirmation Procedure ...............................325
Overall Function Check ........................................326
Diagnostic Procedure ...........................................327
DTC P0442 EVAP CONTROL SYSTEM .. ...... ....... ..330
On Board Diagnosis Logic ....................................330
DTC Confirmation Procedure ...............................331
Diagnostic Procedure ...........................................332
Component Inspection ..........................................338
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ......................339
Description ............ ....... ...... ....... ...... ....... ...... ....... ..339
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CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................340
DTC Confirmation Procedure ................... ....... .....340
Wiring Diagram .....................................................341
Diagnostic Procedure ...........................................342
Component Inspection ..........................................344
Removal and Installation ......................................344
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE .....................................................................345
Component Description ........................................345
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................345
DTC Confirmation Procedure ................... ....... .....346
Wiring Diagram .....................................................347
Diagnostic Procedure ...........................................348
Component Inspection ..........................................350
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ............................ ....... ...............................352
Component Description ........................................352
CONSULT-II Reference Value in Data Monitor Mode
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 ............................ ....... ...............................359
Component Description ........................................359
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................359
DTC Confirmation Procedure ................... ....... .....360
Wiring Diagram .....................................................361
Diagnostic Procedure ...........................................362
Component Inspection ..........................................365
DTC P0455 EVAP CONTROL SYSTEM .................367
On Board Diagnosis Logic ....................................367
DTC Confirmation Procedure ................... ....... .....368
Diagnostic Procedure ...........................................369
DTC P0456 EVAP CONTROL SYSTEM .................375
On Board Diagnosis Logic ....................................375
DTC Confirmation Procedure ................... ....... .....376
Overall Function Check ........................................377
Diagnostic Procedure ...........................................378
Component Inspection ..........................................383
DTC P0460 FUEL LEVEL SENSOR .......................384
Component Description ........................................384
On Board Diagnosis Logic ....................................384
DTC Confirmation Procedure ................... ....... .....384
Wiring Diagram .....................................................385
Diagnostic Procedure ...........................................386
Removal and Installation ......................................388
DTC P0461 FUEL LEVEL SENSOR .......................389
Component Description ........................................389
On Board Diagnosis Logic ....................................389
Overall Function Check ........................................389
.339
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.352
.359
DTC P0462, P0463 FUEL LEVEL SENSOR ...........391
Component Description ........................................391
On Board Diagnosis Logic ....................................391
DTC Confirmation Procedure ................................391
Wiring Diagram .....................................................392
Diagnostic Procedure ............................................393
Removal and Installation .......................................394
DTC P0500 VSS ......................................................395
Description ............................................................395
On Board Diagnosis Logic ....................................395
DTC Confirmation Procedure ................................395
Overall Function Check .........................................396
Diagnostic Procedure ............................................396
DTC P0506 ISC SYSTEM .......................................397
Description ............................................................397
On Board Diagnosis Logic ....................................397
DTC Confirmation Procedure ................................397
Diagnostic Procedure ............................................398
DTC P0507 ISC SYSTEM .......................................399
Description ............................................................399
On Board Diagnosis Logic ....................................399
DTC Confirmation Procedure ................................399
Diagnostic Procedure ............................................400
DTC P0550 PSP SENSOR ......................................401
Component Description ........................................401
CONSULT-II Reference Value in Data Monitor Mode
.401
On Board Diagnosis Logic ....................................401
DTC Confirmation Procedure ................................401
Wiring Diagram .....................................................402
Diagnostic Procedure ............................................403
Component Inspection ..........................................406
DTC P0605 ECM .....................................................407
Component Description ........................................407
On Board Diagnosis Logic ....................................407
DTC Confirmation Procedure ................................407
Diagnostic Procedure ............................................408
DTC P0650 MIL .......................................................410
Component Description ........................................410
On Board Diagnosis Logic ....................................410
DTC Confirmation Procedure ................................410
Wiring Diagram .....................................................411
Diagnostic Procedure ............................................412
DTC P1065 ECM POWER SUPPLY ........................414
Component Description ........................................414
On Board Diagnosis Logic ....................................414
DTC Confirmation Procedure ................................414
Wiring Diagram .....................................................415
Diagnostic Procedure ............................................416
DTC P1102 MAF SENSOR .....................................418
Component Description ........................................418
CONSULT-II Reference Value in Data Monitor Mode
.418
On Board Diagnosis Logic ....................................418
DTC Confirmation Procedure ................................419
Wiring Diagram .....................................................420
Diagnostic Procedure ............................................421
Component Inspection ..........................................423
Removal and Installation .......................................423
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DTC P1111, P1136 IVT CONTROL SOLENOID
VALVE ......................... ............................................ 424
Component Description ........................................ 424
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 424
DTC Confirmation Procedure ............................... 424
Wiring Diagram .................................................... 425
Diagnostic Procedure ........................................... 428
Component Inspection ......................................... 429
Removal and Installation ...................................... 429
DTC P1119 RADIATOR COOLANT TEMPERA-
TURE SENSOR ...................................................... 430
Component Description ........................................ 430
On Board Diagnosis Logic ................................... 430
DTC Confirmation Procedure ............................... 431
Wiring Diagram .................................................... 432
Diagnostic Procedure ........................................... 433
Component Inspection ......................................... 434
Removal and Installation ...................................... 434
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 435
Component Description ........................................ 435
On Board Diagnosis Logic ................................... 435
DTC Confirmation Procedure ............................... 435
Diagnostic Procedure ........................................... 436
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ........................ .......................... ............ 437
Description ........................................................... 437
On Board Diagnosis Logic ................................... 437
DTC Confirmation Procedure ............................... 437
Wiring Diagram .................................................... 438
Diagnostic Procedure ........................................... 439
Component Inspection ......................................... 442
Remove and Installation ....................................... 443
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .................................................................... 444
Component Description ........................................ 444
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 444
DTC Confirmation Procedure ............................... 444
Wiring Diagram .................................................... 446
Diagnostic Procedure ........................................... 447
Component Inspection ......................................... 448
DTC P1128 THROTTLE CONTROL MOTOR ........ 450
Component Description ........................................ 450
On Board Diagnosis Logic ................................... 450
DTC Confirmation Procedure ............................... 450
Wiring Diagram .................................................... 451
Diagnostic Procedure ........................................... 452
Component Inspection ......................................... 453
Removal and Installation ...................................... 454
DTC P1140, P1 145 IVT CONTROL POSITION SEN-
SOR ........................................................................ 455
Component Description ........................................ 455
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 455
. 424
. 444
. 455
DTC Confirmation Procedure ...............................455
Wiring Diagram .....................................................456
Diagnostic Procedure ...........................................459
Component Inspection ..........................................461
Removal and Installation ......................................462
DTC P1143, P1163 HO2S1 .....................................463
Component Description ........................................463
CONSULT-II Reference Value in Data Monitor Mode
.463
On Board Diagnosis Logic ....................................463
DTC Confirmation Procedure ...............................464
Overall Function Check ........................................465
Diagnostic Procedure ...........................................465
Component Inspection ..........................................467
Removal and Installation ......................................468
DTC P1144, P1164 HO2S1 .....................................469
Component Description ........................................469
CONSULT-II Reference Value in Data Monitor Mode
.469
On Board Diagnosis Logic ....................................469
DTC Confirmation Procedure ...............................470
Overall Function Check ........................................471
Diagnostic Procedure ...........................................471
Component Inspection ..........................................473
Removal and Installation ......................................475
DTC P1146, P1166 HO2S2 .....................................476
Component Description ........................................476
CONSULT-II Reference Value in Data Monitor Mode
.476
On Board Diagnosis Logic ....................................476
DTC Confirmation Procedure ...............................477
Overall Function Check ........................................477
Wiring Diagram .....................................................479
Diagnostic Procedure ...........................................482
Component Inspection ..........................................485
Removal and Installation ......................................487
DTC P1147, P1167 HO2S2 .....................................488
Component Description ........................................488
CONSULT-II Reference Value in Data Monitor Mode
.488
On Board Diagnosis Logic ....................................488
DTC Confirmation Procedure ...............................489
Overall Function Check ........................................489
Wiring Diagram .....................................................491
Diagnostic Procedure ...........................................494
Component Inspection ..........................................497
Removal and Installation ......................................499
DTC P1148, P1168 CLOSED LOOP CONTROL ....500
On Board Diagnosis Logic ....................................500
DTC Confirmation Procedure ...............................500
Overall Function Check ........................................501
Diagnostic Procedure ...........................................501
DTC P1211 TCS CONTROL UNIT ..........................502
Description ............ ....... ...... ....... ...... ....... ...... ....... ..502
On Board Diagnosis Logic ....................................502
DTC Confirmation Procedure ...............................502
Diagnostic Procedure ...........................................502
DTC P1212 TCS COMMUNICATION LINE ............503
Description ............ ....... ...... ....... ...... ....... ...... ....... ..503
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On Board Diagnosis Logic ....................................503
DTC Confirmation Procedure ................... ....... .....503
Diagnostic Procedure ...........................................503
DTC P1217 ENGINE OVER TEMPERATURE ........504
Description .......... ......................... .........................504
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................505
Overall Function Check ........................................506
Wiring Diagram .....................................................508
Diagnostic Procedure ...........................................509
Main 12 Causes of Overheating ...........................512
DTC P1220 FUEL PUMP CONTROL MODULE
(FPCM) ....................................................................513
Description .......... ......................... .........................513
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................513
DTC Confirmation Procedure ................... ....... .....514
Wiring Diagram .....................................................515
Diagnostic Procedure ...........................................517
Component Inspection ..........................................519
DTC P1225 TP SENSOR ........................................521
Component Description ........................................521
On Board Diagnosis Logic ....................................521
DTC Confirmation Procedure ................... ....... .....521
Diagnostic Procedure ...........................................522
Removal and Installation ......................................522
DTC P1226 TP SENSOR ........................................523
Component Description ........................................523
On Board Diagnosis Logic ....................................523
DTC Confirmation Procedure ................... ....... .....523
Diagnostic Procedure ...........................................524
Removal and Installation ......................................524
DTC P1229 SENSOR POWER SUPPLY ................525
On Board Diagnosis Logic ....................................525
DTC Confirmation Procedure ................... ....... .....525
Wiring Diagram .....................................................526
Diagnostic Procedure ...........................................527
DTC P1442 EVAP CONTROL SYSTEM .................529
On Board Diagnosis Logic ....................................529
DTC Confirmation Procedure ................... ....... .....530
Diagnostic Procedure ...........................................531
Component Inspection ..........................................537
DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ...............................538
Description .......... ......................... .........................538
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ....................................539
DTC Confirmation Procedure ................... ....... .....539
Wiring Diagram .....................................................540
Diagnostic Procedure ...........................................541
Component Inspection ..........................................544
Removal and Installation ......................................545
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .....................................................................546
Component Description ........................................546
CONSULT-II Reference Value in Data Monitor Mode
.505
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.538
.546
On Board Diagnosis Logic ....................................546
DTC Confirmation Procedure ................................547
Wiring Diagram .....................................................548
Diagnostic Procedure ............................................549
Component Inspection ..........................................551
DTC P1448 EVAP CANISTER VENT CONTROL
VALVE ............................. ............. ............. ............. ..552
Component Description ........................................552
CONSULT-II Reference Value in Data Monitor Mode
.552
On Board Diagnosis Logic ....................................552
DTC Confirmation Procedure ................................553
Overall Function Check .........................................554
Wiring Diagram .....................................................555
Diagnostic Procedure ............................................556
Component Inspection ..........................................558
DTC P1456 EVAP CONTROL SYSTEM .................559
On Board Diagnosis Logic ....................................559
DTC Confirmation Procedure ................................560
Overall Function Check .........................................561
Diagnostic Procedure ............................................562
Component Inspection ..........................................567
DTC P1464 FUEL LEVEL SENSOR .......................568
Component Description ........................................568
On Board Diagnosis Logic ....................................568
DTC Confirmation Procedure ................................568
Wiring Diagram .....................................................569
Diagnostic Procedure ............................................570
Removal and Installation .......................................570
DTC P1480 COOLING FAN SPEED CONTROL
SOLENOID VALVE ..................................................571
Description ............................................................571
CONSULT-II Reference Value in Data Monitor Mode
.572
On Board Diagnosis Logic ....................................572
DTC Confirmation Procedure ................................572
Wiring Diagram .....................................................574
Diagnostic Procedure ............................................575
Component Inspection ..........................................576
Removal and Installation .......................................576
DTC P1490 VACUUM CUT V ALVE BYPASS VAL VE .577
Description ............................................................577
CONSULT-II Reference Value in Data Monitor Mode
.577
On Board Diagnosis Logic ....................................577
DTC Confirmation Procedure ................................578
Wiring Diagram .....................................................579
Diagnostic Procedure ............................................580
Component Inspection ..........................................582
DTC P1491 VACUUM CUT V ALVE BYPASS VAL VE .583
Description ............................................................583
CONSULT-II Reference Value in Data Monitor Mode
.583
On Board Diagnosis Logic ....................................583
DTC Confirmation Procedure ................................584
Overall Function Check .........................................584
Wiring Diagram .....................................................586
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Diagnostic Procedure ........................................... 587
Component Inspection ......................................... 590
DTC P1706 PNP SWITCH ...................................... 592
Component Description ........................................ 592
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 592
DTC Confirmation Procedure ............................... 592
Overall Function Check ........................................ 593
Wiring Diagram .................................................... 594
Diagnostic Procedure ........................................... 595
DTC P1720 VEHICLE SPEED SENSOR (A/T OUT-
PUT) ............................ ............................................ 598
Description ........................................................... 598
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 598
DTC Confirmation Procedure ............................... 598
Diagnostic Procedure ........................................... 599
DTC P1780 SHIFT CHANGE SIGNAL ................... 600
Description ........................................................... 600
On Board Diagnosis Logic ................................... 600
DTC Confirmation Procedure ............................... 600
Diagnostic Procedure ........................................... 600
DTC P1805 BRAKE SWITCH ................................ 602
Description ........................................................... 602
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 602
DTC Confirmation Procedure ............................... 602
Wiring Diagram .................................................... 603
Diagnostic Procedure ........................................... 604
Component Inspection ......................................... 606
DTC P2122, P2123 APP SENSOR ........................ 607
Component Description ........................................ 607
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 607
DTC Confirmation Procedure ............................... 608
Wiring Diagram .................................................... 609
Diagnostic Procedure ........................................... 610
Component Inspection ......................................... 612
Removal and Installation ...................................... 612
DTC P2127, P2128 APP SENSOR ........................ 613
Component Description ........................................ 613
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 613
DTC Confirmation Procedure ............................... 614
Wiring Diagram .................................................... 615
Diagnostic Procedure ........................................... 616
Component Inspection ......................................... 618
Removal and Installation ...................................... 618
DTC P2135 TP SENSOR ........................................ 619
Component Description ........................................ 619
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic ................................... 619
DTC Confirmation Procedure ............................... 620
. 592
. 598
. 602
. 607
. 613
. 619
Wiring Diagram .....................................................621
Diagnostic Procedure ...........................................622
Component Inspection ..........................................624
Removal and Installation ......................................625
DTC P2138 APP SENSOR .....................................626
Component Description ........................................626
CONSULT-II Reference Value in Data Monitor Mode
.626
On Board Diagnosis Logic ....................................626
DTC Confirmation Procedure ...............................627
Wiring Diagram .....................................................628
Diagnostic Procedure ...........................................629
Component Inspection ..........................................632
Removal and Installation ......................................632
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) ...................... .............................................. ..633
Description ............ ....... ...... ....... ...... ....... ...... ....... ..633
CONSULT-II Reference Value in Data Monitor Mode
.634
Wiring Diagram .....................................................635
Diagnostic Procedure ...........................................636
Component Inspection ..........................................639
Removal and Installation ......................................640
IGNITION SIGNAL ............................ ....... ...... ....... ..641
Component Description ........................................641
Wiring Diagram .....................................................642
Diagnostic Procedure ...........................................647
Component Inspection ..........................................651
Removal and Installation ......................................652
INJECTOR CIRCUIT ...............................................653
Component Description ........................................653
CONSULT-II Reference Value in Data Monitor Mode
.653
Wiring Diagram .....................................................654
Diagnostic Procedure ...........................................657
Component Inspection ..........................................661
Removal and Installation ......................................661
START SIGNAL ......................................................662
CONSULT-II Reference Value in Data Monitor Mode
.662
Wiring Diagram .....................................................663
Diagnostic Procedure ...........................................664
FUEL PUMP CIRCUIT ............................................666
Description ............ ....... ...... ....... ...... ....... ...... ....... ..666
CONSULT-II Reference Value in Data Monitor Mode
.666
Wiring Diagram .....................................................667
Diagnostic Procedure ...........................................668
Component Inspection ..........................................671
Removal and Installation ......................................671
REFRIGERANT PRESSURE SENSOR ..................672
Component Description ........................................672
Wiring Diagram .....................................................673
Diagnostic Procedure ...........................................674
Removal and Installation ......................................676
ELECTRICAL LOAD SIGNAL ................................677
Description ............ ....... ...... ....... ...... ....... ...... ....... ..677
CONSULT-II Reference Value in Data Monitor Mode
.677
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EC-7
Wiring Diagram .....................................................678
Diagnostic Procedure ...........................................680
DATA LINK CONNECTOR ....... ...............................683
Wiring Diagram .....................................................683
EVAPORATIVE EMISSION SYSTEM .....................684
Description .......... ......................... .........................684
Component Inspection ..........................................687
How to Detect Fuel Vapor Leakage ......................688
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ....................................................................690
System Description ...............................................690
Diagnostic Procedure ...........................................691
Component Inspection ..........................................693
POSITIVE CRANKCASE VENTILATION ...............696
Description .......... ......................... .........................696
Component Inspection ..........................................696
SERVICE DATA AND SPECIFICATIONS (SDS) ....698
Fuel Pressure Regulator .......................................698
Idle Speed and Ignition Timing ..............................698
Calculated Load Value ..........................................698
Mass Air Flow Sensor .................................. ....... ..698
Intake Air Temperature Sensor .............................698
Engine Coolant Temperature Sensor ....................698
Heated Oxygen Sensor 1 ......................................698
Heated Oxygen sensor 2 ......................................698
Fuel Tempe rature Sens or ......... ...... ....... ...... ....... ..698
Crankshaft Position Sensor (POS) .......................698
Camshaft Position Sensor (PHASE) .....................699
Radiator Coolant Temperature Sensor .................699
Throttle Control Motor ...........................................699
Injector ..................................................................699
Fuel Pump .................... ...... ....... ...... ....... ...... ....... ..699
Revision; 2004 April 2003 Q45
EC-8
INDEX FOR DTC
INDEX FOR DTC PFP:00024
Alphabetical Index EBS00LV1
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-141, "
Items
(CONSULT-II screen terms)
A/T INTERLOCK P1730 1730 1 × AT-160
A/T TCC S/V FNCTN P0744 0744 2 × AT-123
APP SEN 1/CIRC P2122 2122 1 × EC-607
APP SEN 1/CIRC P2123 2123 1 × EC-607
APP SEN 2/CIRC P2127 2127 1 × EC-613
APP SEN 2/CIRC P2128 2128 1 × EC-613
APP SENSOR P2138 2138 1 × EC-626
ATF TEMP SEN/CIRC P0710 0710 2 × AT-147
BRAKE SW/CIRCUIT P1805 1805 2 — EC-602
CAN COMM CIRCUIT U1000
CAN COMM CIRCUIT U1001
CKP SEN/CIRCUIT P0335 0335 2 × EC-307
CLOSED LOOP-B1 P1148 1148 1 × EC-500
CLOSED LOOP-B2 P1168 1168 1 × EC-500
CMP SEN/CIRC-B1 P0340 0340 2 × EC-315
CTP LEARNING P1225 1225 2 — EC-521
CTP LEARNING P1226 1226 2 — EC-523
CYL 1 MISFIRE P0301 0301 2 × EC-297
CYL 2 MISFIRE P0302 0302 2 × EC-297
CYL 3 MISFIRE P0303 0303 2 × EC-297
CYL 4 MISFIRE P0304 0304 2 × EC-297
CYL 5 MISFIRE P0305 0305 2 × EC-297
CYL 6 MISFIRE P0306 0306 2 × EC-297
CYL 7 MISFIRE P0307 0307 2 × EC-297
CYL 8 MISFIRE P0308 0308 2 × EC-297
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-407
ECM BACK UP/CIRCUIT P1065 1065 2 × EC-414
ECT SEN/CIRCUIT P0117 0117 1 × EC-190
ECT SEN/CIRCUIT P0118 0118 1 × EC-190
ECT SENSOR P0125 0125 1 × EC-201
ENG OVER TEMP P1217 1217 1 × EC-504
ETC ACTR P1121 1121 1 × EC-435
ETC FUNCTION/CIRC P1122 1122 1 × EC-437
ETC MOT P1128 1128 1 × EC-450
ETC MOT PWR P1124 1124 1 × EC-444
DTC U1000, U1001 CAN COMMUNICATION LINE" .
1
DTC*
CONSULT-II
GST*
2
ECM*
1000*
1001*
3
5
5
Trip
1 × EC-141
2—EC-141
×:Applicable —: Not applicable
MIL lighting
up
Reference page
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EC-9
INDEX FOR DTC
1
Items
(CONSULT-II screen terms)
ETC MOT PWR P1126 1126 1 × EC-444
EV AP GROSS LEAK P0455 0455 2 × EC-367
EV AP PURG FLOW/MON P0441 0441 2 × EC-325
EV AP SMALL LEAK P0442 0442 2 × EC-330
EV AP SMALL LEAK P1442 1442 2 × EC-529
EVAP SYS PRES SEN P0452 0452 2 × EC-352
EVAP SYS PRES SEN P0453 0453 2 × EC-359
EV AP VERY SML LEAK P0456 0456 2 × EC-375
EV AP VERY SML LEAK P1456 1456 2 × EC-559
FAN CONT S/V CIRC P1480 1480 1 — EC-571
FPCM/CIRCUIT P1220 1220 2 × EC-513
FR/B SOLENOID/CIRC P1757 1757 1 × AT-180
FR/B SOLENOID FNCT P1759 1759 1 × AT-185
FTT SEN/CIRCUIT P0182 0182 2 × EC-287
FTT SEN/CIRCUIT P0183 0183 2 × EC-287
FTT SENSOR P0181 0181 2 × EC-282
FUEL LEV SEN SLOSH P0460 0460 2 × EC-384
FUEL LEVEL SENSOR P0461 0461 2 × EC-389
FUEL LEVL SEN/CIRC P0462 0462 2 × EC-391
FUEL LEVL SEN/CIRC P0463 0463 2 × EC-391
FUEL LEVL SEN/CIRC P1464 1464 2 × EC-568
FUEL SYS-LEAN-B1 P0171 0171 2 × EC-265
FUEL SYS-LEAN-B2 P0174 0174 2 × EC-265
FUEL SYS-RICH-B1 P0172 0172 2 × EC-274
FUEL SYS-RICH-B2 P0175 0175 2 × EC-274
HLR/C SOL FNCTN P1769 176 9 1 × AT-203
HLR/C SOL/CIRC P1767 1767 1 × AT-198
HO2S1 (B1) P0132 0132 2 × EC-212
HO2S1 (B1) P0133 0133 2 × EC-221
HO2S1 (B1) P0134 0134 2 × EC-233
HO2S1 (B1) P1143 1143 2 × EC-463
HO2S1 (B1) P1144 1144 2 × EC-469
HO2S1 (B2) P0152 0152 2 × EC-212
HO2S1 (B2) P0153 0153 2 × EC-221
HO2S1 (B2) P0154 0154 2 × EC-233
HO2S1 (B2) P1163 1163 2 × EC-463
HO2S1 (B2) P1164 1164 2 × EC-469
HO2S1 HTR (B1) P0031 0031 2 × EC-155
HO2S1 HTR (B1) P0032 0032 2 × EC-155
HO2S1 HTR (B2) P0051 0051 2 × EC-155
HO2S1 HTR (B2) P0052 0052 2 × EC-155
HO2S2 (B1) P0138 0138 2 × EC-242
CONSULT-II
GST*
DTC*
3
2
ECM*
Trip
MIL lighting
up
Reference page
Revision; 2004 April 2003 Q45
EC-10
INDEX FOR DTC
1
Items
(CONSULT-II screen terms)
HO2S2 (B1) P0139 0139 2 × EC-253
HO2S2 (B1) P1146 1146 2 × EC-476
HO2S2 (B1) P1147 1147 2 × EC-488
HO2S2 (B2) P0158 0158 2 × EC-242
HO2S2 (B2) P0159 0159 2 × EC-253
HO2S2 (B2) P1166 1166 2 × EC-476
HO2S2 (B2) P1167 1167 2 × EC-488
HO2S2 HTR (B1) P0037 0037 2 × EC-163
HO2S2 HTR (B1) P0038 0038 2 × EC-163
HO2S2 HTR (B2) P0057 0057 2 × EC-163
HO2S2 HTR (B2) P0058 0058 2 × EC-163
I/C SOLENOID/CIRC P1752 1752 1 × AT-171
I/C SOLENOID FNCTN P1754 1754 1 × AT-176
IAT SEN/CIRCUIT P0112 0112 2 × EC- 186
IAT SEN/CIRCUIT P0113 0113 2 × EC- 186
IAT SENSOR P0127 0127 2 × EC-205
INT/V TIM CONT-B1 P0011 0011 2 × EC-144
INT/V TIM CONT-B2 P0021 0021 2 × EC-144
INT/V TIM V /CIR-B1 P1111 1111 2 × EC-424
INT/V TIM V/CIR-B2 P1136 1136 2 × EC-424
INTK TIM S/CIR-B1 P1140 1140 2 × EC-455
INTK TIM S/CIR-B2 P1145 1145 2 × EC-455
ISC SYSTEM P0506 0506 2 × EC-397
ISC SYSTEM P0507 0507 2 × EC-399
KNOCK SEN/CIRC-B1 P0327 0327 2 — EC-303
KNOCK SEN/CIRC-B1 P0328 0328 2 — EC-303
KNOCK SEN/CIRC-B2 P0332 0332 2 — EC-303
KNOCK SEN/CIRC-B2 P0333 0333 2 — EC-303
L/PRESS SOL/CIRC P0745 0745 2 × AT-128
LC/B SOLENOID FNCT P1774 1774 1 × AT-212
LC/B SOLENOID/CIRC P1772 1772 1 × AT-207
MAF SEN/CIRCUIT P0101 0101 1 × EC-171
MAF SEN/CIRCUIT P0102 0102 1 × EC-179
MAF SEN/CIRCUIT P0103 0103 1 × EC-179
MAF SENSOR P1102 1102 1 × EC-418
MIL/CIRC P0650 0650 2 — EC-410
MULTI CYL MISFIRE P0300 0300 2 × EC-297
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 — BL-201
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
CONSULT-II
GST*
No DTC
P0000 0000 —— —
DTC*
3
2
ECM*
Flashing*
4
Trip
—
MIL lighting
up
Flashing*
4
Reference page
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EC-11
INDEX FOR DTC
1
Items
(CONSULT-II screen terms)
P-N POS SW/CIRCUIT P1706 170 6 2 × EC-592
PNP SW/CIRC P0705 0705 2 × AT-106
PURG VOLUME CONT/V P0444 0444 2 × EC-339
PURG VOLUME CONT/V P0445 0445 2 × EC-339
PURG VOLUME CONT/V P1444 1444 2 × EC-538
PW ST P SEN/CIRC P0550 0550 2 — EC-401
RADI TEMP SEN/CIRC P1119 1119 1 — EC-430
SENSOR POWER/CIRC P1229 1229 1 × EC-525
SHIFT SIG FNCTN P1780 1780 2 — EC-600
TCC SOLENOID/CIRC P0740 0740 2 × AT-118
TCS C/U FUNCTN P121 1 1211 2 — EC-502
TCS/CIRC P1212 1212 2 — EC-503
THERMSTAT FNCTN P0128 0128 2 × EC-210
TP SEN 1/CIRC P0222 0222 1 × EC-291
TP SEN 1/CIRC P0223 0223 1 × EC-291
TP SEN 2/CIRC P0122 0122 1 × EC-195
TP SEN 2/CIRC P0123 0123 1 × EC-195
TP SENSOR P2135 2135 1 × EC-619
TURBINE REV S/CIRC P1716 1716 2 × AT-153
TW CATALYST SYS-B1 P0420 0420 2 × EC-320
TW CATALYST SYS-B2 P0430 0430 2 × EC-320
V/SP SEN(A/T OUT) P1720 1720 2 — EC-598
VC/V BYPASS/V P1490 1490 2 × EC-577
VC CUT/V BYPASS/V P1491 1491 2 × EC-5 83
VEH SPD SEN/CIR AT P0720 072 0 2 × AT-111
VEH SPEED SEN/CIRC P0500 0500 2 × EC-395
VENT CONTROL VALVE P0447 0447 2 × EC-345
VENT CONTROL VALVE P1446 1446 2 × EC-546
VENT CONTROL VALVE P1448 1448 2 × EC-552
*1: 1st trip DTC No. is the same as DTC No.
*2: This numbers is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this numbers is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
CONSULT-II
GST*
DTC*
3
2
ECM*
Trip
MIL lighting
up
Reference page
Revision; 2004 April 2003 Q45
EC-12
INDEX FOR DTC
DTC No. Index EBS00LV2
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-141, "
1
DTC*
CONSULT-II
2
GST*
No DTC
U1000
U1001
P0000 0000
P0011 0011 INT/V TIM CONT-B1 2 × EC-144
P0021 0021 INT/V TIM CONT-B2 2 × EC-144
P0031 0031 HO2S1 HTR (B1) 2 × EC-155
P0032 0032 HO2S1 HTR (B1) 2 × EC-155
P0037 0037 HO2S2 HTR (B1) 2 × EC-163
P0038 0038 HO2S2 HTR (B1) 2 × EC-163
P0051 0051 HO2S1 HTR (B2) 2 × EC-155
P0052 0052 HO2S1 HTR (B2) 2 × EC-155
P0057 0057 HO2S2 HTR (B2) 2 × EC-163
P0058 0058 HO2S2 HTR (B2) 2 × EC-163
P0101 0101 MAF SEN/CIRCUIT 1 × EC-171
P0102 0102 MAF SEN/CIRCUIT 1 × EC-179
P0103 0103 MAF SEN/CIRCUIT 1 × EC-179
P0112 0112 IAT SEN/CIRCUIT 2 × EC-186
P0113 0113 IAT SEN/CIRCUIT 2 × EC-186
P0117 0117 ECT SEN/CIRCUIT 1 × EC-190
P0118 0118 ECT SEN/CIRCUIT 1 × EC-190
P0122 0122 TP SEN2/CIRC 1 × EC-195
P0123 0123 TP SEN2/CIRC 1 × EC-195
P0125 0125 ECT SENSOR 1 × EC-201
P0127 0127 IAT SENSOR 2 × EC-205
P0128 0128 THERMSTAT FNCTN 2 × EC-210
P0132 0132 HO2S1 (B1) 2 × EC-212
P0133 0133 HO2S1 (B1) 2 × EC-221
P0134 0134 HO2S1 (B1) 2 × EC-233
P0138 0138 HO2S2 (B1) 2 × EC-242
P0139 0139 HO2S2 (B1) 2 × EC-253
P0152 0152 HO2S1 (B2) 2 × EC-212
P0153 0153 HO2S1 (B2) 2 × EC-221
P0154 0154 HO2S1 (B2) 2 × EC-233
P0158 0158 HO2S2 (B2) 2 × EC-242
Flashing*
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
ECM*
1000*
1001*
3
4
5
5
(CONSULT-II screen terms)
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
CAN COMM CIRCUIT 1 × EC-141
CAN COMM CIRCUIT 2 — EC-141
NO DTC IS DETECTED.
FURTHER TESTING
MA Y BE REQUIRED.
×:Applicable —: Not applicable
Trip
—
—— —
MIL lighting
up
Flashing*
4
Reference page
EC-66
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EC-13
1
DTC*
CONSULT-II
2
GST*
P0159 0159 HO2S2 (B2) 2 × EC-253
P0171 0171 FUEL SYS-LEAN-B1 2 × EC-265
P0172 0172 FUEL SYS-RICH-B1 2 × EC-274
P0174 0174 FUEL SYS-LEAN-B2 2 × EC-265
P0175 0175 FUEL SYS-RICH-B2 2 × EC-274
P0181 0181 FTT SENSOR 2 × EC-282
P0182 0182 FTT SEN/CIRCUIT 2 × EC-287
P0183 0183 FTT SEN/CIRCUIT 2 × EC-287
P0222 0222 TP SEN 1/CIRC 1 × EC-291
P0223 0223 TP SEN 1/CIRC 1 × EC-291
P0300 0300 MULTI CYL MISFIRE 2 × EC-297
P0301 0301 CYL 1 MISFIRE 2 × EC-297
P0302 0302 CYL 2 MISFIRE 2 × EC-297
P0303 0303 CYL 3 MISFIRE 2 × EC-297
P0304 0304 CYL 4 MISFIRE 2 × EC-297
P0305 0305 CYL 5 MISFIRE 2 × EC-297
P0306 0306 CYL 6 MISFIRE 2 × EC-297
P0307 0307 CYL 7 MISFIRE 2 × EC-297
P0308 0308 CYL 8 MISFIRE 2 × EC-297
P0327 0327 KNOCK SEN/CIRC-B1 2 — EC-303
P0328 0328 KNOCK SEN/CIRC-B1 2 — EC-303
P0332 0332 KNOCK SEN/CIRC-B2 2 — EC-303
P0333 0333 KNOCK SEN/CIRC-B2 2 — EC-303
P0335 0335 CKP SEN/CIRCUIT 2 × EC-307
P0340 0340 CMP SEN/CIRC-B1 2 × EC-315
P0420 0420 TW CATALYST SYS-B1 2 × EC-320
P0430 0430 TW CATALYST SYS-B2 2 × EC-320
P0441 0441 EVAP PURG FLOW/MON 2 × EC-325
P0442 0442 EVAP SMALL LEAK 2 × EC-330
P0444 0444 PURG VOLUME CONT/V 2 × EC-339
P0445 0445 PURG VOLUME CONT/V 2 × EC-339
P0447 0447 VENT CONTROL VALVE 2 × EC-345
P0452 0452 EVAP SYS PRES SEN 2 × EC-352
P0453 0453 EVAP SYS PRES SEN 2 × EC-359
P0455 0455 EVAP GROSS LEAK 2 × EC-367
P0456 0456 EVAP VERY SML LEAK 2 × EC-375
P0460 0460 FUEL LEV SEN SLOSH 2 × EC-384
P0461 0461 FUEL LEVEL SENSOR 2 × EC-389
P0462 0462 FUEL LEVL SEN/CIRC 2 × EC-391
P0463 0463 FUEL LEVL SEN/CIRC 2 × EC-391
P0500 0500 VEH SPEED SEN/CIRC 2 × EC-395
P0506 0506 ISC SYSTEM 2 × EC-397
ECM*
INDEX FOR DTC
Items
3
(CONSULT-II screen terms)
Trip
MIL lighting
up
Reference page
Revision; 2004 April 2003 Q45
EC-14
1
DTC*
CONSULT-II
2
GST*
P0507 0507 ISC SYSTEM 2 × EC-399
P0550 0550 PW ST P SEN/CIRC 2 — EC-401
P0605 0605 ECM 1 or 2 × or — EC-407
P0650 0650 MIL/CIRC 2 — EC-410
P0705 0705 PNP SW/CIRC 2 × AT-106
P0710 0710 ATF TEMP SEN/CIRC 2 × AT-147
P0720 0720 VEH SPD SEN/CIR AT 2 × AT-111
P0740 0740 TCC SOLENOID/CIRC 2 × AT-118
P0744 0744 A/T TCC S/V FNCTN 2 × AT-123
P0745 0745 L/PRESS SOL/CIRC 2 × AT-128
P1065 1065 ECM BACK UP/CIRCUIT 2 × EC-414
P1102 1102 MAF SENSOR 1 × EC-418
P1111 1111 INT/V TIM V/CIR-B1 2 × EC-424
P1119 1119 RADI TEMP SEN/CIRC 1 — EC-430
P1121 1121 ETC ACTR 1 × EC-435
P1122 1122 ETC FUNCTION/CIRC 1 × EC-437
P1124 1124 ETC MOT PWR 1 × EC-444
P1126 1126 ETC MOT PWR 1 × EC-444
P1128 1128 ETC MOT 1 × EC-450
P1136 1 136 INT/V TIM V/CIR-B2 2 × EC-424
P1140 1140 INTK TIM S/CIRC-B1 2 × EC-455
P1143 1143 HO2S1 (B1) 2 × EC-463
P1144 1144 HO2S1 (B1) 2 × EC-469
P1145 1145 INTK TIM S/CIRC-B2 2 × EC-455
P1146 1146 HO2S2 (B1) 2 × EC-476
P1147 1147 HO2S2 (B1) 2 × EC-488
P1148 1148 CLOSED LOOP-B 1 1 × EC-500
P1163 1163 HO2S1 (B2) 2 × EC-463
P1164 1164 HO2S1 (B2) 2 × EC-469
P1166 1166 HO2S2 (B2) 2 × EC-476
P1167 1167 HO2S2 (B2) 2 × EC-488
P1168 1168 CLOSED LOOP-B 2 1 × EC-500
P1211 1211 TCS C/U FUNCTN 2 — EC-502
P1212 1212 TCS/CIRC 2 — EC-503
P1217 1217 ENG OVER TEMP 1 × EC-504
P1220 1220 FPCM/CIRCUIT 2 × EC-513
P1225 1225 CTP LEARNING 2 — EC-521
P1226 1226 CTP LEARNING 2 — EC-523
P1229 1229 SENSOR POWER/CIRC 1 × EC-525
P1442 1442 EVAP SMALL LEAK 2 × EC-529
P1444 1444 PURG VOLUME CONT/V 2 × EC-538
P1446 1446 VENT CONTROL VALVE 2 × EC-546
ECM*
INDEX FOR DTC
Items
3
(CONSULT-II screen terms)
Trip
MIL lighting
up
Reference page
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Revision; 2004 April 2003 Q45
EC-15
INDEX FOR DTC
1
DTC*
CONSULT-II
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 — BL-201
*1: 1st trip DTC No. is the same as DTC No.
*2: This numbers is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this numbers is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC need CONSU LT-II.
2
GST*
P1448 1448 VENT CONTROL VALVE 2 × EC-552
P1456 1456 EVAP VERY SML LEAK 2 × EC-559
P1464 1464 FUEL LEVL SEN/CIRC 2 × EC-568
P1480 1480 FAN CONT S/V CIRC 1 — EC-571
P1490 1490 VC/V BYP ASS/V 2 × EC-577
P1491 1491 VC CUT/V BYPASS/V 2 × EC-583
P1706 1706 P-N POS SW/CIRCUIT 2 × EC-592
P1716 1716 TURBINE REV S/CIRC 2 × AT-153
P1720 1720 V/SP SEN(A/T OUT) 2 — EC-598
P1730 1730 A/T INTERLOCK 1 × AT-160
P1752 1752 I/C SOLENOID/CIRC 1 × AT-171
P1754 1754 I/C SOLENOID FNCTN 1 × AT-176
P1757 1757 FR/B SOLENOID/CIRC 1 × AT-180
P1759 1759 FR/B SOLENOID FNCT 1 × AT-185
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-207
P1774 1774 LC/B SOLENOID FNCT 1 × AT-212
P1780 1780 SHIFT SIG FNCTN 2 — EC-600
P1805 1805 BRAKE SW/CIRCUIT 2 — EC-602
P2122 2122 APP SEN 1/CIRC 1 × EC-607
P2123 2123 APP SEN 1/CIRC 1 × EC-607
P2127 2127 APP SEN 2/CIRC 1 × EC-613
P2128 2128 APP SEN 2/CIRC 1 × EC-613
P2135 2135 TP SENSOR 1 × EC-619
P2138 2138 APP SENSOR 1 × EC-626
ECM*
3
(CONSULT-II screen terms)
Items
Trip
MIL lighting
up
Reference page
Revision; 2004 April 2003 Q45
EC-16
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENS IONER”, used along
with a front seat belt, helps to redu ce th e risk or se verit y o f inju ry to the d river a nd fro nt passen ger fo r certain
types of collision. This system includes sea t belt switch inpu ts 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 inopera tive, which c ould increa se the risk of perso nal injury or dea th
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, inc luding incorrect removal and installation of the SRS, can lead to per-
sonal injury cause d by unintentional ac tiv atio n o f the s ys tem . For removal of Spi ral Cab le and Air
Bag Module, see the SRS section.
● Do not use electrical test equ ipment o n any circu it related to the SRS unless in structed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
EBS00LV3
On Board Diagnostic (OBD) System of Engine and A/T EBS00LV4
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The ECM has an on boa rd diagnos tic system. It w ill light up th e malfunct ion indicat or lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
● Be sure to turn the ignitio n switch OFF and disconne ct the negative battery terminal 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 relate d to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-56, "
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 shor t circuit.
● Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to ligh t up due to the m al func tion 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.
Precaution EBS00LV5
● Always use a 12 volt battery as power source.
● Do not attempt to disconne ct b atte ry c abl es while engine is
running.
● Before connecting or d isconnecting th e 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 applie d to ECM even if ignition
switch is turned off.
● Before removing parts, turn ignition switch OFF and then
disconnect battery ground cable.
HAR-
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Revision; 2004 April 2003 Q45
EC-17
PRECAUTIONS
● Do not disassemble ECM.
● If a battery terminal 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 termin al i s di sconnected. However, this is not an in dication of a malfunction. Do not replace parts because of a slight variation.
● When connecting ECM harness connector, fasten it
securely with a leve r as far as it will go as shown in the f igure.
SEF707Y
● When connecting or discon necting pin connectors into or
from ECM, take care not to dam age 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 harne ss , to p r ev ent eng ine control system malfunctions due to receiving external noise, degraded
operation of ICs, etc.
● Keep engine control system parts and harness dry.
PBIB1162E
PBIB1163E
PBIB0090E
Revision; 2004 April 2003 Q45
EC-18
PRECAUTIONS
● Before replacing ECM, perform “ECM Terminals and Refer-
ence Value” inspection and make sure ECM functions properly. Refer to EC-99, "
● Handle mass air flow sensor carefully to avoid damage.
● Do not disassemble mass air flow sensor.
● Do not clean mass ai r 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 dis played i n the “DTC Con firmatio n
Procedure” if the repair is completed. The “Overall Function Check” should be a good result if the repair is completed.
ECM Terminals and Reference Value" .
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● When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short c ircuit and
damage the ECM power transistor.
● Do not use ECM ground terminals when measuring input/
output volt ag e. Doi ng so ma y resul t in dam age t o the ECM' s
transistor. Use a ground other than ECM terminals, such as
the ground.
SEF217U
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SEF348N
Revision; 2004 April 2003 Q45
EC-19
PRECAUTIONS
● “B1” indicates the bank 1 an d “B2” indica tes the ba nk 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.
PBIB1144E
● 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 s hutdown.
● When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect electronic 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.
PBIB1241E
SEF709Y
SEF708Y
Wiring Diagrams and Trouble Diagnosis EBS00LV6
When you read Wiring diagrams, refer to the following:
● GI-14, "How to Read Wiring Diagrams"
● PG-2, "POWER SUPPL Y ROUTING" for power distribution circuit
When you perform trouble diagnosis, refer to the following:
● GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
● GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"
Revision; 2004 April 2003 Q45
EC-20
PREPARATION
PREPARATION PFP:00002
Special Service Tools EBS00LV7
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool num ber
(Kent-Moore No.)
Tool nam e
Description
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EC
KV10117100
(J-36471-A)
Heated oxygen
sensor wrench
KV10114400
(J-38365)
Heated oxygen
sensor wrench
(J-44321)
Fuel pressure gauge
kit
EG17650301
(J-33984-A)
Radiator cap tester
adapter
S-NT379
S-NT636
LEC642
S-NT564
Loosening or tightening heated oxygen sensors
with 22 mm (0.87 in) hexagon nut
Loosening or tightening heated oxygen sensors
a: 22 mm (0.87 in)
Checking fuel pressure
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)
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Commercial Service Tools EBS00LV8
Tool nam e
(Kent-Moore No.)
Leak detector
i.e.: (J-41416)
S-NT703
EVAP service port
adapter
i.e.: (J-41413-OBD)
S-NT704
Revision; 2004 April 2003 Q45
EC-21
Description
Locating the EVAP leak
Applying positive pressure through EVAP service
port
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PREPARATION
Too l name
(Kent-Moore No.)
Fuel filler cap adapter
i.e.: (MLR-8382)
S-NT815
Socket wrench Removing and installing engine coolant
S-NT705
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12)
AEM488
Anti-seize lubricant
i.e.: (Permatex
133AR or equivalent
meeting MIL
specification MIL-A-
907)
TM
Description
Checking fuel tank vacuum relief valve opening
pressure
temperature sensor
Reconditioning the exhaust syst em threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: J-43897-18 18 mm diameter, for Zirconia
Oxygen Sensor
b: J-43897-12 12 mm diameter, for Titania
Oxygen Sensor
Lubricating oxygen sensor thread clea ni ng to ol
when reconditioning exhaust system threads.
S-NT779
Revision; 2004 April 2003 Q45
EC-22
ENGINE CONTROL SYSTEM
ENGINE CONTROL SYSTEM PFP:23710
System Diagram EBS00LV9
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PBIB1916E
Revision; 2004 April 2003 Q45
EC-23
ENGINE CONTROL SYSTEM
Vacuum Hose Drawing EBS00LVA
Refer to EC-23, "System Diagram" for Vacuum Control System.
PBIB1143E
Revision; 2004 April 2003 Q45
EC-24
ENGINE CONTROL SYSTEM
System Chart EBS00LVB
Input (Sensor) ECM Function Output (Actuator)
● Camshaft position sensor (PHASE)
● C ra nkshaft position sensor (POS)
● M ass ai r f lo w sensor
● Engine coolant temperature sensor
● H eated oxygen sensor 1
● Thr ot tle posit io n sens or
● Accelerator pedal position sensor
● Par k/ neut ra l positi on (PNP ) switch
● In take air temp era ture sensor
● Power steering pressure sensor
● Ig ni tion swi t ch
● Bat te ry vo ltage
● Knoc k sensor
● R efrigerant pressure sensor
● Stop lamp switch
● Fuel le vel sens or*
● EVAP control system pressure sensor
● Fuel tank temp era ture sensor*
● H eated oxygen sensor 2*
● TCM (Transmission control module)*
● VDC/TCS/ABS control unit*
● Air conditioner switch*
● Wheel sensor*
● Elect rical lo ad signal *
1
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2
3
3
3
3
3
*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 signal is sent to the ECM through CAN communi cat ion l ine .
Fuel injection & mixture ratio control Fuel injector
Electronic ignition system Power transistor
Nissan torque demand control syst em
Fuel pump control
● Elect ric th rott le co nt rol act uator
● F u e l injector
● Fuel pump relay
● Fuel pump control module
(FPCM)
On board diagnostic system MIL (On the instrument panel)
Power valve control VIAS control solenoid valve
Heated oxygen sensor 1 heater con trol Heated oxygen sensor 1 heater
Heated oxygen sensor 2 heater con trol Heated oxygen sensor 2 heater
EVAP canister purge flow control
EVAP canister purge volume control
solenoid valve
Air conditioning cut control Air conditioner relay
Cooling fan speed control
ON BOARD DIAGNOSIS for EVAP system
Cooling fan speed control solenoid
valve
● EVAP canister vent control valve
● Vacuum cut valve bypass valve
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EC-25
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Multiport Fuel Injection (MFI) System EBS00LVC
INPUT/OUTPUT SIGNAL CHART
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Ignition switch Start signal
Knock sensor Engine knocking condition
Battery Battery voltage
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
VDC/TCS/ABS control unit*
Air conditioner switch*
Wheel sensor*
*1: This sensor is not used to control the engine sys tem under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
2
1
2
2
Engine speed
Piston position
Density of oxygen in exhaust gas
VDC/TCS operation command
Air conditioner operation
Ve hicle speed
Fuel injection
& mixture ra tio
control
Fuel injectors
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (inj ection pu lse durati on). The a mount of fuel injec ted is a pr ogram val ue in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from the crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operating conditions as listed belo w.
<Fuel increase>
● During warm-up
● When starting the engine
● During acceleration
● Hot-engine operatio n
● When selector lever is changed from “N” to “D”
● High-load, high-speed operation
<Fuel decrease>
● During deceleration
● During high engine speed operation
Revision; 2004 April 2003 Q45
EC-26
ENGINE CONTROL SYSTEM
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
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PBIB0121E
The mixture r atio feedback system provides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst (manifold) can then better reduce CO, HC and NOx emissions. This system uses
heated oxygen sensor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The
ECM adjusts the injection pulse width according to the sensor voltage signal. For more information about
heated oxygen sensor 1, refer to EC-212
. This maintains th e mixture ratio within the range o f stoichio metric
(ideal air-fuel mixture).
This stage is referred to as the closed loop control condition.
Heated oxygen se nsor 2 is located downstream of the three way catalyst (manifold). Even if the switching
characteristics of heated oxyge n sensor 1 shift , the air-fuel ratio is controlled to st oichiometric by the signal
from heated oxygen sensor 2.
Open Loop Control
The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.
● Deceleration and acceleration
● High-load, high-speed operation
● Malfunction of heated oxygen sensor 1 or its circuit
● Insufficient activation of heated oxygen sensor 1 at low engine coolant temperature
● High engine coolant temperature
● During warm-up
● After shifting from “N” to “D”
● When starting the engine
MIXTURE RATIO SELF-LEARNING CONT ROL
The mixture ratio fe edback control syst em monitors the mixture ratio signal transmit ted from heated oxygen
sensor 1. This feedba ck sign al is then se nt to the ECM. Th e ECM contro ls the bas ic mixture ratio as close to
the theoretical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as originally designed. Both manufacturing differences (i.e., mass air flow sensor hot film) and characteristic changes
during operation (i.e., injector clogging) directly affect mixture ratio.
Accordingly, the dif fer e nc e bet w een th e ba si c and t he ore ti ca l mixt ur e ra ti os is m onit o re d in t hi s sys te m. T hi s is
then computed in terms of “injection pu lse duration” to aut omatically compe nsate for the difference be tween
the two ratios.
“Fuel trim” refers to the feedback co mpensation value compare d against the basic injecti on duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the sh ort-term fuel c ompensatio n used to ma intain the mix ture ratio at its th eoretical
value. The signal from heated oxygen sensor 1 indicates whether the mixture ratio is RICH or LEAN compared
to the theoretica l value. Th e signal then trigge rs a reduc tion in fue l volume if the mixtu re ratio i s rich, and a n
increase in fuel volume if it is lean.
“Long term fuel trim” is ov erall fue l compe nsation ca rried out lo ng-term to com pensate fo r continu al deviatio n
of the short t e rm fue l t rim f rom t he c en tra l valu e. Su ch dev ia ti o n wil l oc cu r d ue to in di vi dual eng i ne differences,
wear over time and changes in the usage environment.
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EC-27
ENGINE CONTROL SYSTEM
FUEL INJECTION TIMING
PBIB0122E
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injec ted into each cy linder d uring ea ch engi ne cyc le accordi ng to the firin g order. This system i s used
when the engine is running.
Simultaneous Multiport Fuel Injection System
Fuel is inject ed simul taneously into all eight cyli nd er s tw ic e e ach en gi ne cyc le . In o th er w ord s, pu ls e sign al s o f
the same width are simultaneously transmitted from the ECM.
The eight injectors will then receive the signals two times for each engine cycle.
This system is used when the engine is being s tarted and/or if the fail-safe system (CPU ) is operating.
FUEL SHUT-OFF
Fuel to each cylinder is cut off during deceleration or operation of t he engine at exc essively high speeds.
Electronic Ignition (EI) System EBS00LVD
INPUT/OUTPUT SIGNAL CHART
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Ignition switch Start signal
Knock sensor Engine knocking
Park/neutral position (PNP) switch G ear posi tion
Battery Batte ry vo ltage
Wheel sen sor*
*1: This signal is sent to the ECM through CAN communication line.
1
SYSTEM DESCRIPTION
The ignition timing is controlled by the ECM to maintain the best airfuel ratio for every running condition of the engine. The ignition timing data is stored in the ECM. This data forms the map shown.
The ECM receives information such as the injection pulse width
crankshaft position sensor (POS) signal, and camshaft position sensor (PHASE) signal. Computing this information, ignition signals are
transmitted to the power transistor.
e.g., N: 1,800 rpm, Tp: 1.50 msec
A °BTDC
During the foll owing condition s, the ignition ti ming is revised by the
ECM according to the other da ta stored in the ECM.
● At starting
Engine speed
Piston position
Vehicle speed
Ignition timing
control
Power transistor
SEF742M
Revision; 2004 April 2003 Q45
EC-28
ENGINE CONTROL SYSTEM
● During warm-up
● At idle
● At low battery voltage
● During acceleration
The knock sensor retard system is designed only for emergencies. The basic ignition timing is programmed
within the anti-knocking zone, if recommended fuel is used under dry conditions. The retard system does not
operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.
The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.
Nissan Torque Demand (NTD) Control System EBS00LVE
INPUT/OUTPUT SIGNAL CHART
Sensor Input signal to ECM ECM function Actuator
Camshaft position sensor (PHAS E)
Crankshaft position sensor (POS)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/Neutral position (PNP) switch Gear position
Power steering pressure sensor Power steering operation
Battery Battery voltage
TCM* A/T control signal
Air conditioner switch* Air conditioner operati on
VDC/TCS/ABS control unit* VDC/TCS/ABS operation
Wheel sensor* Vehicle speed
Electrical load* Electrical load signal
*: Signal is sent to the ECM through CAN communication line.
Engine speed
NTD control
Electric throttle control actuator and fuel
injector
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SYSTEM DESCRIPTION
NTD control system decides the target traction based on the accelerator operation status and the current driving condition. It then selects the engine torque target by correcting running resistance and atmospheric pressure, and controlling the power-train. Using electric throttle control actuator, it achieves the engine torque
development target which corresponds linearly to the driver's accelerator operation.
Running resistance correction control compares the engine torque estimate value, measured vehicle acceleration, and run ning resi stance on a f lat road , and es timates veh icle weig ht gain a nd running resistance variation caused by slopes to correct the engine torque estimate value.
Atmospheric pressure correction control compares the engine torque estimate value from the airflow rate and
the target engine torque for the target traction, and estimates variation of atmospheric pressure to correct the
target engine torque. This system achieves powerful driving without reducing engine performance in the practical speed range in mountains and high-altitude areas.
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Revision; 2004 April 2003 Q45
EC-29
ENGINE CONTROL SYSTEM
Air Conditioning Cut Control EBS00LVF
INPUT/OUTPUT SIGNAL CHART
Sensor I nput Signal to ECM ECM function Actuator
Air conditioner switch*
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine coolant temperature sensor Engine coolant temperature
Ignition switch Start signal
Refrigerant pressure sensor Refrigerant pressure
Power steering pressure sensor Power steering operation
Wheel sensor*
*1: This signal is sent to the ECM through CAN communication line.
1
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SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
● When the accelerator pedal is fully depressed.
● When cranking the engine.
● At high engine speeds.
● When the engine coolant temperature becomes excessively high.
● When operating power steering during low engine speed or low vehicle speed.
● When engine speed is excessive ly low.
● When refrigerant pressure is excessively low or high.
Air conditioner “ON” signal
Engine speed
Vehicle speed
Air conditioner
cut control
Air conditioner relay
Fuel Cut Control (at No Load and High Engine Speed) EBS00LVG
INPUT/OUTPUT SIGNAL CHART
Park/neutral position (PNP) switch Neut ra l pos ition
Accelerator pedal position sensor Accelerator pedal position
Engine coolant temperature sensor Engine coolant temperature
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Wheel sensor*
*1: This signal is sent to the ECM through CAN communication line.
Sensor Input Signal to ECM ECM function Actuator
Fuel cut con-
Engine speed
1
Vehicle speed
trol
Fuel injectors
SYSTEM DESCRIPTION
If the engine speed is above 1,400 rpm under no lo ad (for example, t he shift position is neutral and engi ne
speed is over 1,8 00 rpm) fuel will be cut o ff after some time. The exact ti me when the fuel is cut off varies
based on engine sp ee d.
Fuel cut will be operated until the engine speed reaches 1,000 rpm, then fuel cut will be cancelled.
NOTE:
This function is different from deceleration control listed under “Multiport Fuel Injection (MFI) System”, EC-26
CAN communication EBS00LVH
SYSTEM DESCRIPTION
CAN (Controller Area N et w ork ) is a s eri al co mm u nic a tio n l ine for real time applic ati on . It is an on-vehicl e m ul tiplex communi catio n lin e with hi gh da ta co mmun icat ion spe ed and exce llent error d etec tion ab ili ty. Many electronic control u nits are eq uipped o nto a ve hicl e, and ea ch control unit sh ares info rmation and l inks with other
control units duri ng operation (not independent). In CAN communicat ion, control units ar e connected wi th 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.
.
Revision; 2004 April 2003 Q45
EC-30
ENGINE CONTROL SYSTEM
CAN COMMUNICATION UNIT
Body type Sedan
Axle 2WD
Engine VK45DE
Transmission A/T
Brake control VDC
ICC system Not applicable Applicable
CAN commun ication unit
ECM ××
VDC/TCS/ABS control unit ××
ICC sensor ×
ICC unit ×
TCM ××
Data link connector ××
Steering angle sensor ××
Combination meter ××
CAN communication type EC-31, "
×: Applicable
Type 1" EC-32, "Type 2"
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System diagram
Input/output signal chart
T: Transmit R: Receive
Signals ECM
Engine speed signal T R R R
Engine coolant temperature signal T R
Accelerator pedal position signal T R R
Engine torque signal T R R
Battery voltage signal T R
Closed throttle position signal T R
Wide open throttle position signal T R
Engine and A/T integrated control signal
Fuel consumption monitor signal T R
A/T CHECK indicator signal T R
A/T position indicator signal T R
Current gear position signal R R T R
TR
RT
VDC/TCS/ABS
control unit
TCM
Steering angle
sensor
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Combination
meter
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EC-31
ENGINE CONTROL SYSTEM
Signals ECM
Next gear position signal R R T
Shift change signal R R T
Shift pattern signal R T
VDC operation signal R T
Stop lamp switch signal R T
Steering angle sensor signal R T
Air conditioner switch signal R T
Headlamp switch signal R T
Rear window defogger switch signal R T
OD cancel switch signal R T
Vehicle speed signal
Output shaft revolution signal R T
ABS operation signal R T R
TCS operation signal R T
A/T shift schedule change demand signal T R
ASCD operation signal R R T
Overdrive cancel signal R R T
Manual mode signal R T
Not manual mode signal R T
Manual mode shift up signal R T
Manual mode shift down signal R T
Manual mode indicator signal T R
RRT
VDC/TCS/ABS
control unit
TR
TCM
Steering angle
sensor
Combination
meter
Type 2
System diagram
Input/output signal chart
T: Transmit R: Receive
VDC/
Signals ECM
ICC system display signal T R
ICC sensor signal T R
ICC operation signal T R
Engine speed signal T R R R R
Engine coolant temperature signal T R R
TCS/ABS
control
unit
ICC sen-
sor
ICC unit TCM
Steering
angle
sensor
SKIA3838E
Combination meter
Revision; 2004 April 2003 Q45
EC-32
ENGINE CONTROL SYSTEM
VDC/
Signals ECM
Accelerator pedal position signal T R R R
Engine torque signal T R R
Battery voltage signal T R
Closed throttle position signal T R R
Wide open throttle position signal T R
Engine and A/T integrated control signal
Fuel consumption monitor signal T R
A/T CHECK indicator signal TR
A/T position indicator signal TR
Current gear position signal R R R T R
Next gear position signal R R R T
Shift change signal R R T
Shift pattern signal R R T
VDC operation signal R T R
Stop lamp switch signal RT
Steering angle sensor signal R T
Air conditioner switch signal R T
Headlamp switch signal R T
Rear window defogger switch signal R T
OD cancel switch signal R T
Vehicle speed signal
Output shaft revolution signal R R T
ABS operation signal R T R R
TCS operation signal R T R
A/T shift schedule change demand signal T R
Manual mode signal R R T
Not manual mode signal RT
Manual mode shift up signal RT
Manual mode shift down signal R T
Manual mode indicator signal TR
TR
RT
RRT
TCS/ABS
control
unit
TR R
ICC sen-
sor
ICC unit TCM
Steering
angle
sensor
Combination meter
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EC-33
BASIC SERVICE PROCEDURE
BASIC SERVICE PROCEDURE PFP:00018 Idle Speed and Ignition Timing Check EBS00LVI
IDLE SPEED
With CONSULT-II
Check idle speed in “DATA MONITOR” mode with CONSULT-II.
SEF058Y
With GST
Check idle speed with GST.
IGNITION TIMING
Any of following two methods may be used.
Method A
1. Attach timing light to loop wire as shown.
2. Check ignition timing.
Method B
1. Remove No. 1 ignition coil.
PBIB0139E
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BASIC SERVICE PROCEDURE
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension w ire as sh ow n , a nd attach timing light cl am p t o this
wire.
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3. Check ignition timing.
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment EBS00LVJ
PREPARATION
1. Make sure that the following parts are in good order.
– Battery
– Ignition system
– Engine oil and coolant levels
– Fuses
– ECM harness connector
– Vacuum hoses
– Air intake system
(Oil filler cap, oil lev el ga ug e, etc .)
– Fuel pressure
– Engine compression
– Throttle valve
– Evaporative emission system
2. On air conditioner equipped models, checks should be carried out while the air conditioner is “OFF”.
3. On automatic transmission equipped models, when checking idle rpm, ignition timing and mixture ratio,
checks should be carried out while selector lever is in “N” position.
4. When measuring “CO” per c entage, in sert probe mor e than 40 cm (15.7 in) into tail pipe.
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BASIC SERVICE PROCEDURE
5. Turn off headlamp, heater blower, rear window defogger.
6. Keep front wheels pointed straight ahead.
OVERALL INSPECTION SEQUENCE
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EC-36
BASIC SERVICE PROCEDURE
INSPECTION PROCEDURE
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
– Harness connectors for improper connections
– Wiring harness for improper connections, pinches and cut
– V acuum hoses for splits, kinks an d improper connections
– Hoses and ducts for leaks
– Air cleaner clog ging
– Gasket
3. Confirm that electrical or mechanical loads ar e not applied.
– Headlamp switch is OFF.
– Air conditioner swit ch is OFF.
– Rear window defogger switch is OFF.
– Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
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5. Run engine at about 2,000 rpm for about 2 minutes under no
load.
6. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding “Diagnostic Procedure”.
>> GO TO 3.
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BASIC SERVICE PROCEDURE
3. CHECK TARGET IDLE SPEED
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no lo ad.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
650 ± 50 rpm (in “P” or “N” position)
SEF978U
Without CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no lo ad.
2. Rev engine ( 2,00 0 t o 3, 0 00 rp m) two or th r ee time s un de r no loa d, th en ru n e ngin e at id l e sp eed f or ab out
1 minute.
3. Check idle speed.
650 ± 50 rpm (in “P” or “N” position)
OK or NG
OK >> GO TO 10.
NG >> GO TO 4.
4. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-46, "
>> GO TO 5.
Accelerator Pedal Released Position Learning" .
5. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-46, "
Throttle Valve Closed Position Learning" .
SEF058Y
>> GO TO 6.
Revision; 2004 April 2003 Q45
EC-38
BASIC SERVICE PROCEDURE
6. PERFORM IDLE AIR VOLUME LEARNING
Perform EC-46, "
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes >> G O T O 7.
No >> 1. Follow the inst ruc tio n of “Idl e Air Volume Learning”.
Idle Air Volume Learning" .
2. GO TO 4.
7. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
650 ± 50 rpm (in “P” or “N” position)
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
650 ± 50 rpm (in “P” or “N” position)
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
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8. DETECT MALFUNCTIONING PART
Check the Followin g.
● Check camshaft position sensor (PHASE) and cir cuit. refer to EC-315 .
● Check crankshaft position sensor (POS) and circuit. refer to EC-307 .
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replac e.
2. GO TO 4.
9. CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initializ ation of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to
BL-203, "
ECM Re-Communicating Function" .
>> GO TO 4.
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BASIC SERVICE PROCEDURE
10. CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
12 ± 5° BTDC (in “P” or “N” position)
OK or NG
OK (With CONSULT-II)>>GO TO 19.
OK (Without CONSULT-II)>>GO TO 20.
NG >> GO TO 11.
11. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-46, "
>> GO TO 12.
Accelerator Pedal Released Position Learning" .
PBIB1242E
12. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-46, "
>> GO TO 13.
Throttle Valve Closed Position Learning" .
13. PERFORM IDLE AIR VOLUME LEARNING
Perform EC-46, "
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes >> GO TO 14.
No >> 1. Follow the instruction of “Idle Air Volume Learning”.
Idle Air Volume Learning" .
2. GO TO 4.
14. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
650 ± 50 rpm (in “P” or “N” position)
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
650 ± 50 rpm (in “P” or “N” position)
OK or NG
OK >> GO TO 15.
NG >> GO TO 17.
Revision; 2004 April 2003 Q45
EC-40
SEF058Y
BASIC SERVICE PROCEDURE
15. CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light.
12 ± 5° BTDC (in “P” or “N” position)
OK or NG
OK (With CONSULT-II)>>GO TO 19.
OK (Without CONSULT-II)>>GO TO 20.
NG >> GO TO 16.
16. CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-35, "
OK or NG
OK >> GO TO 17.
NG >> 1. Repair the timing chain installation.
2. GO TO 4.
TIMING CHAIN" .
17. DETECT MALFUNCTIONING PART
Check the followin g.
● Check camshaft position sensor (PHASE) and cir cuit. refer to EC-315 .
● Check crankshaft position sensor (POS) and circuit. refer to EC-307 .
OK or NG
OK >> GO TO 18.
NG >> 1. Repair or replac e.
2. GO TO 4.
18. CHECK ECM FUNCTION
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1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initializ ation of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to
BL-203, "
Revision; 2004 April 2003 Q45
ECM Re-Communicating Function" .
>> GO TO 4.
EC-41
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19. CHECK HEATED OXYGEN SENSOR 1 (BANK 1) SIGNAL
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no lo ad.
2. See “HO2S1 MNTR (B1)” in “DATA MONITOR” mode.
3. Running engine at 2,000 rpm under no load (The engine is
warmed up to normal operating temperature.), check that the
monitor fluctuate s between LEAN and RICH more than 5 tim es
during 10 seconds.
1 time: RICH → LEAN → RICH
2 times: RICH → LEAN → RICH → LEAN → RICH
OK or NG
OK >> GO TO 21.
NG (Monitor does not fluctuate. )>>GO TO 23.
NG (Monitor fluctuates less than 5 times.)>>GO TO 31.
PBIB0120E
20. CHECK HEATED OXYGEN SENSOR 1 (BANK 1) SIGNAL
Without CONSULT-II
1. Stop engine and set ECM to Self Diagnostic Test Mode II (Heated oxygen sensor 1 monitor). Refer to EC-
66, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .
2. Start engine and run it at about 2,000 rpm for about 2 minutes under no load.
3. Running engine at 2,000 rpm under no load (The engine is warmed up to normal operating temperature.),
check that the MIL comes on more than 5 times during 10 seconds.
OK or NG
OK >> GO TO 22.
NG (MIL does not come on)>>GO TO 23.
NG (MIL comes on less than 5 times)>>GO TO 31.
21. CHECK HEATED OXYGEN SENSOR 1 (BANK 2) SIGNAL
With CONSULT-II
1. See “HO2S1 MNTR (B2)” in “DATA MONITOR” mode.
2. Running engine at 2,000 rpm under no load (The engine is
warmed up to normal operating temperature.), check that the
monitor fluctuate s between LEAN and RICH more than 5 tim es
during 10 seconds.
1 time: RICH → LEAN → RICH
2 times: RICH → LEAN → RICH → LEAN → RICH
OK or NG
OK >> INSPECTION END
NG (Monitor does not fluctuate. )>>GO TO 24.
NG (Monitor fluctuates less than 5 times.)>>GO TO 31.
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EC-42
BASIC SERVICE PROCEDURE
22. CHECK HEATED OXYGEN SENSOR 1 (BANK 2) SIGNAL
Without CONSULT-II
1. Switch the mon itored sensor from ba nk 1 to bank 2. Refer to EC-67, "
From Bank 1 to Bank 2 or Vice Versa" .
2. Running engine at 2,000 rpm under no load (The en gine is warme d up to normal operating temperature.),
check that the MIL comes on more than 5 times during 10 seconds.
OK or NG
OK >> INSPECTION END
NG (MIL does not come on)>>GO TO 24.
NG (MIL comes on less than 5 times)>>GO TO 31.
How to Switch Monitored Sensor
23. CHECK HEATED OXYGEN SENSOR 1 (BANK 1) HARNESS
1. Turn ignition switch “OFF” and disconnect battery ground cable.
2. Disconnect ECM harness connector.
3. Disconnect heated oxygen s ensor 1 (bank 1) harness connector.
4. Check harness continuity between ECM terminal 114 and heated oxygen sensor 1 (bank 1) terminal 1.
Refer to Wiring Diagram, EC-214, "
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 25.
NG >> 1. Repair or repl ace harness between ECM and heated oxygen sensor 1 (ban k 1).
2. GO TO 4.
BANK 1" .
24. CHECK HEATED OXYGEN SENSOR 1 (BANK 2) HARNESS
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1. Turn ignition switch “OFF” and disconnect battery ground cable.
2. Disconnect ECM harness connector.
3. Disconnect heated oxygen s ensor 1 (bank 2) harness connector.
4. Check harness continuity between ECM terminal 115 and heated oxygen sensor 1 (bank 2) terminal 1.
Refer to Wiring Diagram, EC-216, "
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 25.
NG >> 1. Repair or repl ace harness between ECM and heated oxygen sensor 1 (ban k 2).
2. GO TO 4.
BANK 2" .
25. PERFORM ACCELERA TOR PEDAL RELEASED POSITION LEARNING
1. Reconnect ECM harness connecto r and heated oxyge n sensor 1 harnes s connector.
2. Perform EC-46, "
>> GO TO 26.
Accelerator Pedal Released Position Learning" .
26. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-46, "
Throttle Valve Closed Position Learning" .
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>> GO TO 27.
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EC-43
BASIC SERVICE PROCEDURE
27. PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-46, "
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes (With CONSULT-II)>>GO TO 28.
Yes (Without CONSULT-II)>>GO TO 29.
No >> 1. Follow the instruction of “Idle Air Volume Learning”.
Idle Air Volume Learning" .
2. GO TO 4.
28. CHECK “CO” %
With CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
2. Turn ignition switch “OFF”, wait at least 10 seconds and then turn “ON”.
3. Select “ENG COOLANT TEMP” in “ACTIVE TEST” mode.
4. Set “ENG COOLANT TEMP” to 5°C (41°F) by touching “DOWN”
and “Qd”.
5. Start engine and rev it (2,000 to 3,000 rpm) two or thre e times
under no load, then run engine at idle speed.
6. Check “CO” %.
Idle CO: 0.7 − 9.9 % and engine runs smoothly.
OK or NG
OK >> GO TO 31.
NG >> GO TO 30.
SEF172Y
29. CHECK “CO” %
Without CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
2. T urn ignition switch “OFF”.
3. Disconnect engine coolant temperature sensor harness connector.
4. Connec t a resistor (4. 4 kΩ) between terminals of en gin e c oo lan t
temperature sensor harness connector.
5. Start engine and rev it (2,000 to 3,000 rpm) two or thre e times
under no load, then run engine at idle speed.
6. Check “CO” %.
Idle CO: 0.7 − 9.9 % and engine runs smoothly.
7. After checking “CO” %, turn ignition switch “OFF”, disconnect
the resistor from the terminals of engine coolant temperature
sensor harness connector, and then connect engine coolant
temperature sensor harness connector to engine coolant temperature sensor.
OK or NG
OK >> GO TO 31.
NG >> GO TO 30.
30. RECONNECT HEATED OXYGEN SENSOR 1 HARNESS CONNECTOR
SEF982UA
1. T urn ignition switch “OFF”.
2. Reconnec t heated oxygen sensor 1 harness con nector.
>> GO TO 34.
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EC-44
BASIC SERVICE PROCEDURE
31. REPLACE HEATED OXYGEN SENSOR 1
1. Stop engine.
2. Replace heated oxygen sensor 1 on the malfunctioning bank.
With CONSULT-II>>GO TO 32.
Without CONSULT-II>>GO TO 33.
32. CHECK HEATED OXYGEN SENSOR 1 (BANK 1) / (BANK 2) SIGNAL
With CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
2. See “HO2S1 MNTR (B1)/(B2)” in “DATA MONITOR” mode.
3. Running engine at 2,000 rpm under no load (The en gine is warme d up to normal operating temperature.),
check that the monitor fluctuates between LEAN and RICH more than 5 times during 10 seconds.
1 time: RICH → LEAN → RICH
2 times: RICH → LEAN → RICH → LEAN → RICH
OK or NG
OK >> GO TO 4.
NG >> GO TO 34.
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33. CHECK HEATED OXYGEN SENSOR 1 (BANK 1) / (BANK 2) SIGNAL
Without CONSULT-II
1. Set ECM to Self Diagnostic Test Mode II (Heated oxygen sensor 1 monitor). Refer to EC-66, "
SWITCH DIAGNOSTIC TEST MODE" .
2. Switch the monitored sensor to the malfunctioning bank. Refer to EC-67, "
sor From Bank 1 to Bank 2 or Vice Versa" .
3. Running engine at 2,000 rpm under no load (The en gine is warme d up to normal operating temperature.),
check that the MIL comes on more than 5 times during 10 seconds.
OK or NG
OK >> GO TO 4.
NG >> GO TO 34.
How to Switch Monitored Sen-
HOW TO
34. DETECT MALFUNCTIONING PART
Check the followin g.
● Check fuel pressure regulator and repair or replace if necessary. Refer to EC-48 .
● Check mass air flow sensor and it s circuit, and repair or replace if necessary. Refer to EC-179 .
● Check injector and its circuit, and repair or replace if necessary. Refer to EC-653 .
● Check engine c oola nt tempe ratu re se nso r and its circu it, an d repair or repla ce i f nec ess ary. Refer to EC-
190 and EC-201 .
OK or NG
OK >> GO TO 36.
NG >> 1. Repair or replac e.
2. GO TO 35.
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BASIC SERVICE PROCEDURE
35. ERASE UNNECESSARY DTC
After this inspection, unnecessary DTC might be disp layed.
Erase the stored me mory in ECM and TCM . Refe r to EC-63, "
NOSTIC INFORMATION" and AT-39 .
>> GO TO 4.
HOW TO ERASE EMISSION-RELATED DIAG-
36. CHECK ECM FUNCTION
1. Substitute anothe r kn own -good ECM to chec k ECM func tion . (E CM ma y be the cau se o f an inci dent , but
this is a rare case.)
2. Perform initializa tion of IV IS (NATS) system and registrati on of all IVIS (NATS) ignition key IDs. Refer to
BL-203, "
Accelerator Pedal Released Position Learning EBS00LVK
DESCRIPTION
“Accelerator P eda l Rel eased Pos ition Lear ning ” i s an o perat ion to lea rn th e ful ly rel ease d po siti on of t he a ccelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time
harness connec tor of accelerator pedal position sensor or ECM is disconnected.
ECM Re-Communicating Function" .
>> GO TO 4.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. T urn ignition switch “ON” and wait at least 2 s econds.
3. Turn ignition switch “OFF” and wait at least 10 seconds.
4. T urn ignition switch “ON” and wait at least 2 s econds.
5. Turn ignition switch “OFF” and wait at least 10 seconds.
Throttle Valve Closed Position Learning EBS00LVL
DESCRIPTION
“Throttle Valve Closed Position Learning” is an operation to learn the fully closed position of the throttle valve
by monitoring the thro ttle posi tion sens or output signal. It mu st be perform ed each time harne ss connec tor of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is released.
2. Turn ignition switch “ON”.
3. Turn ignition switch “OFF” and wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume Learning EBS00LVM
DESCRIPTION
“Idle Air Volume Learning” is an operation to learn the idle air volume that keeps each engine within the specific range. It must be performed under any of the following conditions:
● Each time electric throttle control actuator or ECM is replaced.
● Idle speed or ignition timing is out of specification.
PREPARATION
Before performing “Idle Air Volume Learning”, make sure that all of th e following conditions are s atisfied.
Learning will be cancelled if any of the follow ing conditions are missed for even a moment.
● Battery voltage: More than 12.9V (At idle)
● Engine coolant temperature: 70 - 99°C (158 - 210°F)
● PNP switch: ON
● Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
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EC-46
BASIC SERVICE PROCEDURE
On vehicles equ ipp ed with da yti me li ght sy ste ms, if the p a r k ing brak e i s ap pl ied be for e the en g ine
is started the headlamp will not be illuminated.
● Ste ering wheel: Neutral (Straight-ahead position)
● Ve hicle speed: Stopped
● Transmission: Warmed-up
For models with CONSULT-II, drive vehicle un til “ATF TEMP SE 1” in “DATA MONITOR” mode of “A/T”
system indicates less than 0.9V.
For models without CONSULT-II, drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform EC-46, "Accelerator Pedal Released Position Learning" .
2. Perform EC-46, "
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic “PREP ARATION” (previously mentioned) are in good order.
5. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
Throttle Valve Closed Position Learning" .
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6. Touch “ST ART” and wait 20 seconds.
7. Make sure t hat “CMP LT” is displayed on CON SULT-II screen. If
“CMPLT” is not displa yed, “Id le Air Volume Learning ” will not be
carried out succe ssfully. In this case, find the cause of th e incident by referring to the “DIAGNOSTIC PROCEDURE” below.
8. Rev up the engi ne two or three times and make sure th at idle
speed and ignition timing are within the specifications.
ITEM SPECIFICATION
Idle speed 650 ± 50 rpm (in “P” o r “N” position)
Ignition timing 12 ± 5° BTDC (in “P” or “N” position)
Without CONSULT-II
NOTE:
● It is better to count the time accurately with a clock.
● It is impossible to switch the diagnostic mode when an acce lerator pedal position sens or circuit
has a malfunction.
1. Perform EC-46, "
Accelerator Pedal Released Position Learning" .
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BASIC SERVICE PROCEDURE
2. Perform EC-46, "Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic “PREPARATION” (previously mentioned) are in good order.
5. Turn ignition switch “OFF” and wait at least 10 seconds.
6. Confir m that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
7. Repeat the following procedure quickly five times within 5 second s.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the acceler ator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
SEC897C
12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the
specifications.
ITEM SPECIFICATION
Idle speed 650 ± 50 rpm (in “P” or “N” position)
Ignition timing 12 ± 5° BTDC (in “P” or “N” position)
13. If idle speed and igni tion tim ing are not with in the sp ecif icati on, “Idl e Air Volume Learning” w ill not be car-
ried out successfully. In this case, find the cause of the in ci de nt by refe rrin g to th e “D i ag no st ic Proce du re”
below.
DIAGNOSTIC PROCEDURE
If idle air volume learning cannot be performed successfully, proceed as follows:
1. Check that throttle valve is fully closed.
2. Check PCV valve operati on.
3. Check that downstream of throttle valve is free from air leakage.
4. When the above three items check out OK, engine component parts and their installation condi-
tion are questionable. Check and eliminate the cause of the incident.
It is useful to perform EC-128, "
5. If any of the following condition s occur after the engine has started, eliminate the cause of the
incident and perform “Idle Air Volume Learning” all over again:
– Engine stalls.
– Erroneous idle.
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
Fuel Pressure Check EBS00LVN
FUEL PRESSURE RELEASE
With CONSULT-II
1. Turn ignition switch “ON”.
Revision; 2004 April 2003 Q45
EC-48
BASIC SERVICE PROCEDURE
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT”
mode with CONSULT-II.
3. Start engine.
4. After engine stalls, crank it two or three t imes to rel ease all fu el
pressure.
5. Turn ignition switch “OFF”.
Without CONSULT-II
1. Remove fuel pump fuse located in fuse box.
2. Start engine.
3. After engine stalls, crank it two or three t imes to rel ease all fu el
pressure.
4. Turn ignition switch “OFF”.
5. Reinstall fuel pump fuse after servicing fuel system.
A
EC
C
SEF214Y
D
E
F
G
FUEL PRESSURE CHECK
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
● Use Fuel Pressure Gauge Kit (J-44321) to check fuel pressure.
● Prepare pans or saucers under the disconne cted fuel lin e beca use the fuel ma g spill o ut. The fu el
pressure cannot be completely released because F50 models do not have fuel return system.
1. Release fuel pressure to zero. Refer to EC-48, "
2. Install the inline fuel quick disconnected fitting between fuel
damper and inj ector tube.
3. Connect the fuel pressure test gauge (quick connector adapter
hose) to the inline fuel quick disconnected fitting.
4. Turn ignition switch “ON” and check for fuel leakage.
5. Start engine and check for fuel leakage.
6. Read the indication of fuel pressure gauge.
FUEL PRESSURE RELEASE" .
PBIB0041E
H
I
J
K
L
M
PBIB1126E
At idling:
Approximately 350 kPa (3.57 kg/cm
psi)
2
, 51
7. If result is unsatisfactory, go to next step.
8. Check the following.
● Fuel hoses and fuel tubes for clogging
● Fuel filter for clogging
● Fuel pump
Revision; 2004 April 2003 Q45
EC-49
PBIB1243E
BASIC SERVICE PROCEDURE
● Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.
Revision; 2004 April 2003 Q45
EC-50
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM PFP:00028
Introduction EBS00LVO
The ECM has an o n board diagnostic s ys te m, which detec ts ma lf unctions relate d to en gi ne s ensors or actuators. The ECM also records various emission-related diagnostic information including:
Emission-related diagnostic information SAE Mode
Diagnostic Trouble Code (DTC) Mode 3 of SAE J1979
Freeze Frame data Mode 2 of SAE J1979
System Readiness Test (SRT) code Mode 1 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Mode 7 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Mode 6 of SAE J1979
Calibration ID Mode 9 of SAE J1979
The above information can be checked using procedures listed in the table below.
×: Applicable —: Not applicable
DTC 1st trip DTC
CONSULT-II ×× × × ×—
GST ××*1 × — ××
ECM ××*2 — — — —
*1: 1st trip DTCs for self-diagnoses concerni ng SRT items cannot be shown on the GST display.
*2: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
Freeze Frame
data
1st trip Freeze
Frame data
SRT code Test value
A
EC
C
D
E
F
G
H
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to EC-81
Two Trip Detection Logic EBS00LVP
When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lig hts up. The MIL lig hts up at the same time when th e DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” means a driv ing mode in wh ich self-diagnos is is performed
during vehicl e operation. Spe cific on board d iagnostic item s will cause t he ECM to light u p or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
×: Applicable —: Not applicable
MIL DTC 1st trip DTC
Items
Misfire (Possible three way catalyst damage) — DTC: P0300 P0308 is being detected
Misfire (Possible three way catalyst damage) — DTC: P0300 P0308 is being detected
One trip detection diagnoses
(Refer to EC-9
Except above — — — × — ××—
.)
1st trip 2nd trip
Blinking
× ————— × —
—— × —— × ——
— × —— × ———
Lighting
up
Blinking
Lighting
up
1st trip
displaying
2nd trip
displaying
1st trip
displaying
.)
2nd trip
display-
ing
I
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Revision; 2004 April 2003 Q45
EC-51
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Emission-related Diagnostic Information EBS00LVQ
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
×:Applicable —: Not applicable
1
2
DTC*
ECM*
1000*
1001*
3
5
5
SRT code
———EC-141
—— × EC-141
Items
(CONSULT-II screen terms )
CONSULT-II
GST*
CAN COMM CIRCUIT U1000
CAN COMM CIRCUIT U1001
NO DTC IS DETECTED.
FURTHER TESTING
P0000 0000 ————
MA Y BE REQUIRED.
INT/V TIM CONT-B1 P0011 0011 — — × EC-144
INT/V TIM CONT-B2 P0021 0021 — — × EC-144
HO2S1 HTR (B1) P0031 0031 ××
HO2S1 HTR (B1) P0032 0032 ××
HO2S2 HTR (B1) P0037 0037 ××
HO2S2 HTR (B1) P0038 0038 ××
HO2S1 HTR (B2) P0051 0051 ××
HO2S1 HTR (B2) P0052 0052 ××
HO2S2 HTR (B2) P0057 0057 ××
HO2S2 HTR (B2) P0058 0058 ××
MAF SEN/CIRCUIT P0101 0101 — — — EC-171
MAF SEN/CIRCUIT P0102 0102 — — — EC-179
MAF SEN/CIRCUIT P0103 0103 — — — EC-179
IAT SEN/CIRCUIT P0112 0112 — — × EC-186
IAT SEN/CIRCUIT P0113 0113 — — × EC-186
ECT SEN/CIRCUIT P0117 0117 — — — EC-190
ECT SEN/CIRCUIT P0118 0118 — — — EC-190
TP SEN2/CIRC P0122 0122 — — — EC-195
TP SEN2/CIRC P0123 0123 — — — EC-195
ECT SENSOR P0125 0125 — — — EC-201
IAT SENSOR P012 7 012 7 — — × EC-205
THERMSTAT FNCTN P0128 0128 — — × EC-210
HO2S1 (B1) P0132 0132 — ××EC-212
HO2S1 (B1) P0133 0133 ××
HO2S1 (B1) P0134 0134 — ××EC-233
HO2S2 (B1) P0138 0138 — ××EC-242
HO2S2 (B1) P0139 0139 ××
HO2S1 (B2) P0152 0152 — ××EC-212
HO2S1 (B2) P0153 0153 ××
HO2S1 (B2) P0154 0154 — ××EC-233
HO2S2 (B2) P0158 0158 — ××EC-242
HO2S2 (B2) P0159 0159 ××
FUEL SYS-LEAN-B1 P0171 0171 — — × EC-2 65
Tes t value /
Test limit
(GST only)
1st trip DTC
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
Reference
page
EC-155
EC-155
EC-163
EC-163
EC-155
EC-155
EC-163
EC-163
EC-221
EC-253
EC-221
EC-253
Revision; 2004 April 2003 Q45
EC-52
ON BOARD DIAGNOSTIC (OBD) SYSTEM
1
2
DTC*
ECM*
3
SRT code
6
×*
Items
(CONSUL T-II screen terms)
FUEL SYS-RICH-B1 P0172 0172 — — × EC-274
FUEL SYS-LEAN-B2 P0174 0174 — — × EC-265
FUEL SYS-RICH-B2 P0175 0175 — — × EC-274
FTT SENSOR P0181 0181 — — × EC-282
FTT SEN/CIRCUIT P0 182 0 182 — — × EC-287
FTT SEN/CIRCUIT P0 183 0 183 — — × EC-287
TP SEN 1/CIRC P0222 0222 — — — EC-291
TP SEN 1/CIRC P0223 0223 — — — EC-291
MULTI CYL MISFIRE P0300 0300 — — × EC-297
CYL 1 MISFIRE P0301 0301 — — × EC-297
CYL 2 MISFIRE P0302 0302 — — × EC-297
CYL 3 MISFIRE P0303 0303 — — × EC-297
CYL 4 MISFIRE P0304 0304 — — × EC-297
CYL 5 MISFIRE P0305 0305 — — × EC-297
CYL 6 MISFIRE P0306 0306 — — × EC-297
CYL 7 MISFIRE P0307 0307 — — × EC-297
CYL 8 MISFIRE P0308 0308 — — × EC-297
KNOCK SEN/CIRC-B1 P0327 0327 — — × EC-303
KNOCK SEN/CIRC-B1 P0328 0328 — — × EC-303
KNOCK SEN/CIRC-B2 P0332 0332 — — × EC-303
KNOCK SEN/CIRC-B2 P0333 0333 — — × EC-303
CKP SEN/CIRCUIT P0335 0335 — — × EC-307
CMP SEN/CIRC-B1 P0340 0340 — — × EC-315
TW CATALYST SYS-B1 P0420 0420 ××
TW CATALYST SYS-B2 P0430 0430 ××
EVAP PURG FLOW/MON P0441 0441 ××
EVAP SMALL LEAK P0442 0442 ××
PURG VOLUME CONT/V P0444 0444 — — × EC-339
PURG VOLUME CONT/V P0445 0445 — — × EC-339
VENT CONTROL VALVE P0447 0447 — — × EC-345
EVAP SYS PRES SEN P0452 0452 — — × EC-352
EVAP SYS PRES SEN P0453 0453 — — × EC-359
EVAP GROSS LEAK P0455 0455 — ×
EVAP VERY SML LEAK P0 456 0 456
FUEL LEV SEN SLOSH P0460 0460 — — × EC-384
FUEL LEVEL SENSOR P0461 0461 — — × EC-389
FUEL LEVL SEN/CIRC P0462 0462 — — × EC-391
FUEL LEVL SEN/CIRC P0463 0463 — — × EC-391
VEH SPEED SEN/CIRC*
ISC SYSTEM P0506 0 506 — — × EC-397
ISC SYSTEM P0507 0 507 — — × EC-399
5
CONSULT-II
GST*
P0500 0500 — — × EC-395
Test value/
Test limit
(GST only)
×
1st trip DTC
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
Reference
page
EC-320
EC-320
EC-325
EC-330
EC-367
EC-375
A
EC
C
D
E
F
G
H
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Revision; 2004 April 2003 Q45
EC-53
ON BOARD DIAGNOSTIC (OBD) SYSTEM
1
2
DTC*
ECM*
3
SRT code
Items
(CONSULT-II screen terms )
CONSULT-II
GST*
PW ST P SEN/CIRC P0550 0550 — — × EC-4 01
ECM P0605 0605 — — × EC-407
MIL/CIRC P0650 0650 — — × EC-410
PNP SW/CIRC P0705 0705 — — × AT-106
ATF TEMP SEN/CIRC P0710 0710 — — × AT-147
VEH SPD SEN/CIR AT P0720 0720 — — × AT-111
TCC SOLENOID/CIRC P0740 0740 — — × AT-118
A/T TCC S/V FNCTN P0744 0744 — — × AT-123
L/PRESS SOL/CIRC P0745 0745 — — × AT-128
ECM BACK UP/CIRC P1065 1065 — — × EC-414
MAF SENSOR P1102 1102 — — — EC-418
INT/V TIM V/CIR-B1 P1111 1111 — — × EC-424
RADI TEMP SE N/CIRC P1119 1119 — — — EC-430
ETC ACTR P1121 1121 — — — EC-435
ETC FUNCTION/CIRC P1122 1122 — — — EC-437
ETC MOT PWR P1124 1124 — — — EC-444
ETC MOT PWR P1126 1126 — — — EC-444
ETC MOT P1128 1128 — — — EC-450
INT/V TIM V/CIR-B2 P1136 1136 — — × EC-424
INTK TIM S/CIRC-B1 P1140 1140 — — × EC-455
HO2S1 (B1) P1143 1143 ××
HO2S1 (B1) P1144 1144 ××
INTK TIM S/CIRC-B2 P1145 1145 — — × EC-455
HO2S2 (B1) P1146 1146 ××
HO2S2 (B1) P1147 1147 ××
CLOSED LOOP-B1 P1148 1148 — — — EC-500
HO2S1 (B2) P1163 1163 ××
HO2S1 (B2) P1164 1164 ××
HO2S2 (B2) P1166 1166 ××
HO2S2 (B2) P1167 1167 ××
CLOSED LOOP-B2 P1168 1168 — — — EC-500
TCS C/U FUNCTN P1211 1211 — — × EC-502
TCS/CIRC P1212 1212 — — × EC-503
ENG OVER TEMP P1217 1217 — — — EC-504
FPCM/CIRCUIT P1220 1220 — — × EC-513
CTP LEARNING P1225 1225 — — × EC-521
CTP LEARNING P1226 1226 — — × EC-523
SENSOR POWER/CIRC P1229 1229 — — — EC-525
EVAP SMALL LEAK P144 2 1442 ××
PURG VOLUME CONT/V P1444 1444 — — × EC-538
VENT CONTROL VALVE P1446 1446 — — × EC-546
Tes t value /
Test limit
(GST only)
1st trip DTC
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
4
×*
Reference
page
EC-463
EC-469
EC-476
EC-488
EC-463
EC-469
EC-476
EC-488
EC-529
Revision; 2004 April 2003 Q45
EC-54
ON BOARD DIAGNOSTIC (OBD) SYSTEM
1
2
DTC*
ECM*
3
SRT code
6
×*
Items
(CONSUL T-II screen terms)
VENT CONTROL VALVE P1448 1448 — — × EC-552
EVAP VERY SML LEAK P1 456 1 456
FUEL LEVEL SEN/CIRC P1464 1464 — — × EC-568
FAN CONT S/V CIRC P1480 1480 — — — EC-571
VC/V BYPASS/V P1490 1490 — — × EC-577
VC CUT/V BYPASS/V P1491 1491 — — × EC-583
NATS MALFUNCTION P1610 - P1615 1610 - 1615 — — × BL-201
P-N POS SW/CIRCUIT P1706 1706 — — × EC-592
TURBINE REV S/CIRC P1716 1716 — — × AT-153
VSP SEN(A/T OUT) P1720 1720 — — × EC-598
A/T INTERLOCK P1730 1730 — — — AT-160
I/C SOLEN OID/CIRC P1752 17 5 2 — — — AT-171
I/C SOLENOID FNCTN P1754 1754 — — — AT-176
FR/B SOLENOID/CIRC P1757 1757 — — — AT-180
FR/B SOLENOID/CIRC P1759 1759 — — — AT-185
D/C SOLENOID/CIRC P1762 1762 — — — AT-189
D/C SOLENOID FNCTN P1764 1764 — — — AT-194
HLR/C SOL/CIRC P1767 1767 — — — AT-198
HLR/C SOL FNCTN P1769 1769 — — — AT-203
LC/B SOLENOID/CIRC P1772 1772 — — — AT-207
LC/B SOLENOID FNCT P1774 1774 — — — AT-212
SHIFT SIG FNCTN P1780 1780 — — × EC-600
BRAKE SW/CIRCUIT P1805 1805 — — × EC-602
APP SEN 1/CIRC P2122 2122 — — — EC-607
APP SEN 1/CIRC P2123 2123 — — — EC-607
APP SEN 2/CIRC P2127 2127 — — — EC-613
APP SEN 2/CIRC P2128 2128 — — — EC-613
TP SENSOR P2135 2135 — — — EC-619
APP SENSOR P2138 2138 — — — EC-626
*1: 1st trip DTC No. is the same as DTC No.
*2: This numbers is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this numbers is controlled by NISSAN.
*4: This is not displayed with GST.
*5: The trouble shooting for this DTC needs CONS ULT-II.
*6: SRT code will not be set if the self-diagnostic results is NG.
CONSULT-II
GST*
Test value/
Test limit
(GST only)
×
1st trip DTC
4
×*
Reference
page
EC-559
A
EC
C
D
E
F
G
H
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M
DTC AND 1ST TRIP DTC
The 1st trip DTC (wh ose number is t he same as the DT C number) is disp layed for the late st self-diagnos tic
result obtained. If the EC M memory w as cleared prev iously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed.
If a malfuncti on is d et ec ted during the 1st t r ip, th e 1s t trip DTC is stored in the ECM mem o ry. The MIL will not
light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1 st trip DTC is c leared fr om the ECM m emory. If the same malfunction i s detecte d in the
2nd trip, both the 1st tri p DTC and DTC are s tored in the EC M memo ry and th e MIL lights up. In othe r words ,
the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consecutive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
Revision; 2004 April 2003 Q45
EC-55
ON BOARD DIAGNOSTIC (OBD) SYSTEM
trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MIL during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearin g the D TC and th e 1st t rip DTC from th e ECM memory are descri bed in EC-63, "
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-52, "
INFORMATION ITEMS" . These items are required by legal regulations to continuously monitor the system/
component. In addition, the items monitored non-continuously are also displayed on CONSULT-II.
1st trip DTC is specified in Mode 7 of SAE J1979. 1st trip DTC detection occurs without lighting up the MIL and
therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent the vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in “Work Flow” procedure Step II, refer to EC-75, "
firmation Procedure” or “Overall Fu nction Check” to try to dupli cate the malfunction. If the malfunction is duplicated, the item requires repair.
How to Read DTC and 1st Trip DTC
DTC and 1st trip DTC can be read by the following methods.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P1148, P1706, etc.
These DTCs are prescribed by SA E J2012.
(CONSULT-II also displays the malfunctioning com ponent or system .)
No Tools
The number of blinks of the M IL in the Diag nostic Test Mode II (Self-D iagnostic Res ults) indicates the DTC.
Example: 0340, 1148, 1706, etc.
These DTCs are controlled by NISSAN.
● 1st trip DTC No. is the same as DTC No.
● Output of a DTC indicates a malfunction. However, GST or the Diagnostic Test Mode II do not indi-
cate whether the malfunction is still occurring or has occurred in the past and has returned to normal. CONSULT-II can identify malfun ction s tatus as shown below. Therefore, usi ng CONSULT-II (if
available) is recommen de d.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown below. DTC or 1st trip DTC of a malfunction is displayed in SELF-DIAGNOSTIC RESULTS mode of CONSULT-II. Time data indicates how many times
the vehicle was driven after the last de tection of a DTC.
If the DTC is being detected currently, the time data will be “0”.
If a 1st trip DTC is stored in the ECM, the time data will be “[1t]”.
EMISSION-RELATED DIAGNOSTIC
WORK FLOW" . Then perform “DTC Con-
HOW
PBIB0911E
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
The ECM records th e dri ving co ndit ion s such a s fuel system s ta tus , calc ulate d loa d valu e, engi ne coo lant temperature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, base fuel schedule and intake
air temperature at the moment a malfunction is detected.
Data which are stored in the ECM mem ory, along with the 1st t rip DTC , are called 1st trip free ze fram e data.
The data, stored tog ether with the DTC data, are called freeze frame data and display ed on CONSULT- II or
GST. T he 1st trip freeze frame da ta can only be displayed on the CONSULT-I I screen, not on the GST. For
details, see EC-56, "
Only one set of fre eze f rame d ata (eithe r 1st tri p freez e fram e data or fre eze frame d ata) can b e sto red in t he
ECM. 1st trip freez e frame data is s tored in the ECM mem ory al ong wi th the 1st trip DT C. Th ere is no priori ty
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
Revision; 2004 April 2003 Q45
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA" .
EC-56
ON BOARD DIAGNOSTIC (OBD) SYSTEM
longer stored. R eme mber, only one set of free ze fra me da ta can be stored in the ECM . The ECM has th e following pri orities to up date the data.
Priority Items
1
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was stored in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different malfunction is dete cted. There is no priority fo r 1st trip freeze frame data. Howev er, once freeze frame data is
stored in the ECM memory , 1st trip freeze data is no longer stored (because only one freeze frame data or 1st
trip freeze frame data can be stored in the ECM). If freeze frame data is stored in the ECM memory and freeze
frame data with the same priority occurs later, the first (original) freeze frame data remains unchanged in the
ECM memory.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM memory is erased. Procedures for clearing the ECM memory are described in EC-52, "
DIAGNOSTIC INFORMATION ITEMS" .
SYSTEM READINESS TEST (SRT) CODE
System Readiness Test (SRT) code is specified in Mo de 1 of SAE J1979.
As part of an enhanced em iss ions tes t for Ins pect ion & Ma inte nanc e (I/M), certain states req uire th e status of
SRT be used to indicate whether the ECM has completed self-diagnosis of major emission systems and components. Completion must be verified in order for the emissions inspection to proceed.
If a vehicle is rejected for a State emissions inspection due to one or more SRT items indicating “INCMP”, use
the information in this Service Manual to set the SRT to “CMPLT”.
In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT
status will indicate “CMPLT” for each application system. Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.
Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer's
normal driving pattern; the SRT will indicate “INCMP” for these items.
NOTE:
The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM mem-
ory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will continue with the em issions test. However, if the SRT indicat es “INCMP” for one or m ore of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If MIL is “ON” duri ng the st a te emiss ions insp ection , the ve hicl e is al so ret urned to the cu stom er unte sted ev en
though the SRT indicate s “CMPLT” for all test items. Therefore, it is important to check SRT (“CMPLT”) and
DTC (No DTCs) before the inspection.
Freeze frame data Misfire — DTC: P0300 - P0308
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
EMISSION-RELATED
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SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
SRT item
(CONSULT-II indica-
tion)
CATALYST 2 Three way catalyst functio n P0420, P0430
EVAPORATIVE SYS-
TEM
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Perfor-
mance Pri-
1
ority*
1 EVAP control system P0442, P1442
2 EVAP control system P0456, P1456
2 EVAP control system purge flow monitoring P0441
Required self-diagnostic items to set the SRT to “CMPLT”
Corresponding DTC
EC-57
No.
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SRT item
(CONSULT-II indica-
tion)
HO2S 2 H eated oxygen sensor 1 P0133, P0153
HO2S HTR 2 Heated oxygen sensor 1 heater P0031, P0032, P0051,
*1: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the priority for
models with CONSULT-II.
Perfor-
mance Pri-
1
ority*
Required self-diagnostic items to set the SRT to “CMPLT”
Heated oxygen sensor 1 P1143, P1163
Heated oxygen sensor 1 P1144, P1164
Heated oxygen sensor 2 P0139, P0159
Heated oxygen sensor 2 P1146, P1166
Heated oxygen sensor 2 P1147, P1167
Heated oxygen sensor 2 heater P0037, P0038, P0057,
Corresponding DTC
No.
P0052
P0058
SRT Set Timing
SRT is set as “CMPLT” after self-diagno sis has been performed one or more times. Completi on of SRT is
done regardless of whether the result is OK or NG. The set timing is different between OK and NG results and
is shown in the table below.
Example
Self-diagnosis result
All OK Cas e 1 P0400 OK (1) — (1) OK (2) — (2)
Case 2 P0400 OK (1) — (1) — (1) — (1)
Diagnosis
SRT of EGR “CMPLT” “CMPLT” “CMPLT ” “CMPLT”
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”
NG exists Case 3 P0400 OK OK — —
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”
OK: Self-diagnosis is carried out and the resul t is OK .
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.
← ON → OFF ← ON → OFF ← ON → OFF ← ON →
P0402 OK (1 ) — (1) — (1) OK (2)
P1402 OK (1 ) OK (2) — (2) — (2)
P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1 ) OK (2) — (2) — (2)
P0402 — — — —
P1402 NG — NG
(1st trip)
DTC
1st trip DTC — 1st trip DT C
Ignition cycle
NG
(Consecutive
NG)
DTC
(= MIL “ON”)
When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective self-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indicate “CMPLT”. → Case 3 above
The table above s hows that the mi nimum number of cycles for setting SRT as “INCMP” is one (1) f or each
self-diagnosis (Case 1 & 2) or two (2) for one of self-diagnoses (Case 3). However, in preparation for the state
emissions inspection, it is unnecessary for each self-diagnosis to be executed twice (Case 3) for the following
reasons:
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EC-58
ON BOARD DIAGNOSTIC (OBD) SYSTEM
● The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.
● The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.
● When, during SRT driving pattern, 1st trip DTC (NG) is detected prior to “CMPLT” of SRT, the self-diagno-
sis memory must be erased from ECM after repair.
● If the 1st trip DTC is erased, all the SRT will indicate “INCMP”.
NOTE:
SRT can be set as “CMPLT” together with the DTC(s). Therefore, DTC check must always be carried out
prior to the state emissio n inspection ev en though the SRT indicates “CMPLT”.
SRT Service Procedure
If a vehicle has failed the state emissions inspection due to one or more SRT items indicating “INCMP”, review
the flowchart diagnostic sequence on the next page.
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SEF573XA
*1 EC-56 *2 EC-60 *3 EC-60
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EC-59
ON BOARD DIAGNOSTIC (OBD) SYSTEM
How to Display SRT Code
WITH CONSUL T-II
Selecting “SRT STATUS” in “DTC CONFIRMATION” mode with
CONSULT-II.
For items whose SRT codes are set, a “CMPLT” is displayed on the
CONSULT-II screen; for items whose SRT codes are not set,
“INCMP” is displayed.
A sample of CONSULT-II display for SRT code is shown in figure.
“INCMP” means the self-diagnosis is incomplete and SRT is not set.
“CMPLT” means the self-diagnosis is complete and SRT is set.
WITH GST
Selecting Mode 1 with GST (Generic Scan Tool)
How to Set SRT Code
To set all SRT codes, self-diagnosis for the items indicated above must be performed one or more times. Each
diagnosis may require a long peri od of actual driving under various conditions.
WITH CONSUL T-II
Perform correspondi ng DTC Confirmation Proc ed ure o ne b y on e ba s ed o n “Perf orman ce Prio rity ” i n th e table
on EC-57, "
WITHOUT CONSUL T-II
The most efficient driving pattern in which SRT codes can be properly set is explained on the next page. The
driving pattern should be performed one or more times to s et all SRT codes.
SRT Item" .
SEF935Z
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EC-60
Driving Pattern
ON BOARD DIAGNOSTIC (OBD) SYSTEM
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PBIB1053E
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EC-61
ON BOARD DIAGNOSTIC (OBD) SYSTEM
● The time requ i red for e ach diag no si s var ie s with ro ad sur f ace co nd i tio ns, wea the r, altitude, individua l dri v-
ing habits , etc.
Zone A refers to the range where the time, required for the diagnosis under normal conditions*, is the
shortest.
Zone B refers to the range whe re the diagnosis can s till be performed if the diag nosis is not complet ed
within zone A.
*: Normal conditions refer to the following:
● Sea level
● Flat road
● Ambient air temperature: 20 - 30°C (68 - 86°F)
● Diagnosis i s performed as quickly as possible u nder normal conditions.
Under different condition s [For exam ple: amb ient air temp erature oth er than 20 - 30°C (68 - 86°F)], diag nosis may also be per fo r m ed .
Pattern 1:
● The engine is started at the engine coolant temperature of −10 to 35°C (14 to 95°F)
(where the voltage between the ECM terminal 121 and ground is 3.0 - 4.3V).
● The engine must be operate d at idle speed until the engine c oolant temperature is greater than
70°C (158°F) (where the voltage between the ECM terminal 121 and ground is lower than 1.4V).
● The engine is started at the fuel tank temperature of warmer than 0°C (32°F) (where the voltage
between the ECM terminal 92 and ground is less than 4.1V).
Pattern 2:
● When steady-state driving is performed again even a fter it is interrupted, each diagnosis can be con-
ducted. In this case, the time required for diagnosis may be extended.
Pattern 3:
● The driving pattern outlined in *2 must be repeated at least 3 times.
Pattern 4:
● Tests are performed after the engine has been operated for at least 17 minutes.
● The accelerator pedal must be held very steady during stea dy-state dr iving.
● If the accelerator pedal is moved, the test must be conducted all over again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH), then release the accelerator pedal
and keep it released for more than 10 seconds. Depress the accelerator pedal until vehicle speed is 90 km/h
(56 MPH) again.
*2: Operate the vehicle in the following driving pattern.
1. Decelerate vehicle to 0 km/h (0 MPH) and let engine idle.
2. Repeat dr iving pattern shown at right at least 10 times.
– During acceleration, hold the accelerator pedal as steady as
possible.
*3: Checking the vehicle speed with GST is advised.
SEF414S
Suggested Transmission Gear Position
Set the selector lever in the “D” position.
TEST VAL UE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)
The following is the information specified in Mode 6 of SAE J1979.
The test valu e is a parameter used to d etermine whether a system/circuit diagnostic test is “OK” or “NG” while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
Items for which these data (test value and test limit) are displayed are the same as SRT code items (30 test
items).
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be displayed on the GST screen.
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EC-62
SRT item Self-diagnostic test item
Three way catalyst function (Bank 1)
CATALYST
Three way catalyst function (Bank 2)
EVAP SYSTEM
HO2S
EVAP control system purge flow monitoring 06H 83H Min. ×
EVAP control system (Very small leak) 07H 03H Max. ×
Heated oxygen sensor 1 heater (Bank 1)
Heated oxygen sensor 1 heater (Bank 2)
HO2S HTR
Heated oxygen sensor 2 heater (Bank 1)
Heated oxygen sensor 2 heater (Bank 2)
ON BOARD DIAGNOSTIC (OBD) SYSTEM
×: Applicable —: Not applicable
Test value (GST display)
TID CID
01H 01H M ax. ×
02H 81H Min. ×
03H 02H M ax. ×
04H 82H Min. ×
EVAP control system (Small leak) 05H 03H Max. ×
09H 04H M ax. ×
0AH 84H M in. ×
Heated oxygen sensor 1 (Bank 1)
Heated oxygen sensor 1 (Bank 2)
Heated oxygen sensor 2 (Bank 1)
Heated oxygen sensor 2 (Bank 2)
0BH 04H Max. ×
0CH 04H Max. ×
0DH 04H Max. ×
11H 05H Max. ×
12H 85H Min. ×
13H 05H M ax. ×
14H 05H M ax. ×
15H 05H M ax. ×
19H 86H Min. ×
1AH 86H M in. ×
1BH 06H Max. ×
1CH 06H Max. ×
21H 87H Min. ×
22H 87H Min. ×
23H 07H M ax. ×
24H 07H M ax. ×
29H 08H M ax. ×
2AH 88H M in. ×
2BH 09H Max. ×
2CH 89H Min. ×
2DH 0AH Max. ×
2EH 8AH Min. ×
2FH 0BH Max. ×
30H 8BH Min. ×
Test limit Application
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HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
How to Erase DTC
WIth CONSULT-II
The emission related diagnostic information in the ECM can be erased by selecting “ERASE” in the “SELFDIAG RESULTS” mode with CONSULT-II.
If DTCs are displayed for both ECM and TCM (Transmission control module), they need to be erased individually from the ECM and TCM (Transmission control module).
NOTE:
If the DTC is not for A/T related items (see EC-9, "
1. If the ignition switch stays “ON” after repair work, be su re to turn ignition switch “OF F” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
Revision; 2004 April 2003 Q45
INDEX FOR DTC" ), skip steps 2 through 4.
EC-63
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2. Turn CONSULT-II “ON” and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. [The DTC in the TCM (Transmission control module) will be erased.] Then touch “BACK”
twice.
5. Touch “ENGINE” .
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
SCIA5671E
With GST
The emission related diagnostic information in the ECM can be erased by selecting Mode 4 with GST.
NOTE:
If the DTC is not for A/T related items (see EC-9, "
1. If the ignition switch s tays “ON” after repair work, be sure to tur n ignit io n switch “O FF” onc e. Wait at least
10 seconds and t hen turn it “ON” (engine stopped ) again.
2. Perform AT-40, "
3. Select Mod e 4 with GST (Generic Scan Tool).
HOW TO ERASE DTC (WITH GST)" . (The DTC in TCM will be erased.)
No To ols
NOTE:
If the DTC is not for A/T related items (see EC-9, "
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once.
Wait at least 10 seconds and then turn it “ON” (engine stopped) again.
2. Perform AT-41, "
3. Change the diagnostic test mode from Mode II to Mode I by depressing the accelerator pedal. Refer to
EC-66, "
HOW TO SWITCH DIAGNOSTIC TEST MODE" .
HOW TO ERASE DTC (NO TOOLS)" . (The DTC in TCM will be erased.)
INDEX FOR DTC" ), skip step 2.
INDEX FOR DTC" ), skip step 2.
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EC-64
ON BOARD DIAGNOSTIC (OBD) SYSTEM
● If the battery is disconnected, the emission-rel ated diagnostic information will b e lost within 24
hours.
● The following data are cleared when the ECM memory i s erased.
– Diagnostic trouble codes
– 1st trip diagnostic trouble codes
– Freeze frame data
– 1st trip freeze frame data
– System readine ss test (SRT) codes
– Te st va lu es
– Others
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
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IVIS (Infiniti Vehicle Immobilizer System — NATS) EBS00LVR
● If the security indicator li ghts up with the ignition switch in
the “ON” position or “NATS MALFUNCTION” is displayed
on “SELF-DIAG RESULTS” screen, perform self-diagnostic
results mode with CONSULT-II using NATS program card.
Refer to BL-201, "
IVIS (INFINITI VEHICLE IMMOBILIZER
SYSTEM-NATS)" .
● Confirm no self-diagnostic results of IVIS (NATS) is dis-
played before touching “ERASE” in “SELF-DIAG RESULTS”
mode with CONSULT-II.
● When replacing ECM, initialization of IVIS (NATS) system
and registration of a ll IVIS (NATS) ignition key IDs must be
carried out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of IVIS (NATS)
initialization and I VIS (NAT S) ignition key ID registration, refer to CONSULT-II Operation Manual,
IVIS/NVIS.
Malfunction Indicator Lamp (MIL) EBS00LVS
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL wil l light up when the ig nitio n switch is turned ON without the engine running. This is a bulb check.
If the MIL doe s no t li gh t u p, refe r to EC-410 , "
or see DI-33, "
WARNING LAMPS" .
2. When the engi ne is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
DTC P0650 MIL" ,
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EC-65
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board di agnostic syste m has the follow ing four functions.
Diagnostic Test
Mode
Mode I Ignition switch in
KEY and ENG.
Status
“ON” position
Engine stopped
Function Explanation of Function
BULB CHECK This function checks the MIL bulb for damage (blown,
open circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running MALFUNCTION
Mode II Ignition switch in
“ON” position
Engine stopped
Engine running HEATED OXYGEN SENSOR 1
WARNING
SELF-DIAGNOSTIC
RESULTS
MONITOR
This is a usual driving condition. When a malfu nct io n is
detected twice in two consecut iv e drivi ng cycles (two trip
detection logic), the MIL will light up to info rm th e driver
that a malfunction has been detected.
The following malfunctions will light up or blink the MI L in
the 1st trip.
● “Misfire (Possible three way catalyst damage)”
● “One trip detection diagnoses”
This function allows DTCs and 1st trip DTCs to be read.
This function allows the fuel mixture condi tion (lea n or
rich), monitored by heated oxygen sensor 1, to be read.
MIL Flashing Without DTC
If the ECM is in Diagnostic Test Mode II, MIL may flash when engine is running. In this case, check ECM diagnostic test mode. EC-66, "
How to switch the diagnost ic test (function) modes, and details of the above functions are described later. EC-
66, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .
The following emission-related diagnostic information is cleared when the ECM memory is erased.
● Diagnostic trouble codes
● 1st trip diagnostic trouble codes
● Freeze frame data
● 1st trip freeze frame data
● System readiness test (SRT) codes
● Test values
● Others
HOW TO SWITCH DIAGNOSTIC TEST MODE" .
HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:
● It is better to count the time accurately with a clock.
● It is impossible to switch the diagno stic mode when an accele rator pedal position sensor circui t
has a malfunction.
● Always ECM returns to Diagnostic Test Mode I after ignition switch is turned “OFF”.
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EC-66
ON BOARD DIAGNOSTIC (OBD) SYSTEM
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the acceler ator pedal.
3. Wait 7 se con ds , ful l y dep res s th e ac cel era t or pe da l an d ke ep it for appr ox . 10 sec on ds unt il the MI L starts
blinking.
4. Fully release the acceler ator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
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How to Set Diagnostic Test Mode II (Heated Oxygen Sensor 1 Monitor)
1. Set the ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-67, "How to Set Diagnostic
Test Mode II (Self-diagnostic Results)" .
2. Start Engine.
ECM has entered to Diagnostic Test Mode II (Heated oxygen sensor 1 monitor).
ECM will start heated oxygen sensor 1 monitoring from the bank 1 sensor.
How to Switch Monitored Sensor From Bank 1 to Bank 2 or Vice Versa
1. Fully depress the accelerat or pedal quickly and then release it immediate ly.
2. Make sure that monitoring sensor has changed by MIL blinking as follows.
PBIB0093E
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-67, "How to Set Diagnostic Test
Mode II (Self-diagnostic Results)" .
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
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DIAGNOSTIC TEST MODE I — BULB CHECK
In this mode, the M IL o n the in s trum en t pan el should stay ON. If it remains OFF, check the bulb. Refer to EC-
410, "DTC P0650 MIL" or see DI-33, "W ARNING LAMPS" .
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING
MIL Condition
ON When the malf unction is detected.
OFF No malfunction.
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EC-67
ON BOARD DIAGNOSTIC (OBD) SYSTEM
These DTC numbers are clarified in Diagnostic Tes t Mode II (SELF-DIAGNO STIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MIL does not illuminate in diagnostic test
mode I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MIL
illuminates in di agnostic te st mode II (SELF -DIAGNOSTIC RESULTS), it is a DTC; if two or more codes are
displayed, they may be either DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified codes can be identified by using the CONSULT-II or GST. A DTC will be used as an example for how to
read a code.
PBIA3905E
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from on e dig it numera l to an other o ccu rs at an interv al of 1 .0-se cond OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappear ed.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC “0000” refers to no
malfunction. (See EC-9, "
INDEX FOR DTC" )
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in the EC M by dep ress ing ac cele rator pe dal. Re fer to EC-
67, "How to Erase Diagnostic Tes t Mode II (Self-diagnostic Resu lts) " .
● If the battery is disconnected, the DTC will be lost from the backup memory within 24 hours.
● Be careful not to erase the stored memory before starting trouble diagnoses.
DIAGNOSTIC TEST MODE II — HEATED OXYGEN SENSOR 1 MONITOR
In this mode, the MIL displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1 .
MIL Fuel mixture condi tion in the exhaust gas Air fuel ratio feedback control condition
ON Lean
OFF Rich
*Remains ON or OFF Any condition Open loop system
*: Maintains conditions just before switching t o open l oop.
Closed loop system
To check the heated ox ygen sensor 1 function, start engine in t he Diagnostic Test Mode II and warm it u p until
engine coolant temperature indicator points to the m iddle of the gauge.
Next run engine at a bout 2,000 rpm for ab out 2 minutes unde r no load conditions . Then make sure that t he
MIL comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no load.
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EC-68
ON BOARD DIAGNOSTIC (OBD) SYSTEM
OBD System Operation Chart EBS00LVT
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
● When a malfuncti on is detecte d for the first ti me, the 1st trip DTC a nd the 1st trip f reeze frame da ta are
stored in the ECM memory.
● When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are
stored in the ECM me mory, and the MIL will come on. For details, refe r to EC-51, "
Logic" .
● The MIL will go off after the vehi cle is drive n 3 tim es w ith no malfu ncti on. Th e drive is co unte d only whe n
the recorded driving pattern is met (as stored in the ECM). If another malfunction occurs while counting,
the counter will reset.
● The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A)
without the same malfunction recurring (except f or Misfire and Fuel Injection Syste m). For Misfire and
Fuel Injection System, the DTC and freeze frame data will be stored until the vehicle is driven 80 times
(driving pattern C) without the same malfunction recurring. The “TIME” in “SELF-DIAGNOSTIC
RESULTS” mode of CONSULT-II will count the number of times the vehicle is driven.
● The 1st trip DTC is not displayed when the self-diagnosis results in “OK” for the 2nd trip.
Two Trip Detection
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SUMMARY CHART
Items Fuel Injection System Misfire Other
MIL (goes off) 3 (pattern B) 3 (pattern B) 3 (pattern B)
DTC, Freeze Frame Data (no
display)
1st Trip DTC (clear) 1 (pattern C), *1 1 (pattern C), *1 1 (pattern B)
1st Trip Freeze Frame Data
(clear)
For details about patterns “B” and “C” under “Fuel Injection System ” and “Mis fire ”, see EC-71 .
For details about patterns “A” and “B” under “Other”, see EC-73
*1: Clear timing is at the moment OK is detected.
*2: Clear timing is when the same malfunction is detec ted in the 2nd tri p.
80 (pattern C) 80 (pattern C) 40 (pattern A)
*1, *2 *1, *2 1 (pattern B)
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EC-69
ON BOARD DIAGNOSTIC (OBD) SYSTEM
RELA TIONSHI P BETWEEN MIL, DTC, 1ST TRIP DTC AND DRI VING PATTERNS FOR “MIS FIRE
” <EXHAUST QUALITY DETERIORATION>, “FUEL INJECTION SYSTEM”
*1: When the sam e m al fu nct io n is
detected in two consecutive trips,
MIL will light up.
*4: The DTC and the free ze frame data
will not be displayed any longer after
vehicle is driven 80 times (pattern C)
without the same malfunction. (The
DTC and the freeze frame data still
remain in ECM.)
*7: When the sam e m al fu nct io n is
detected in the 2nd trip, the 1st trip
freeze frame data will be cleared.
*2: MIL will go off after vehicle is driven
3 times (pattern B) without any malfunctions.
*5: When a malfunction is detected for
the first time, the 1st trip DTC and
the 1st trip freeze frame data will be
stored in ECM.
*8: 1st trip DTC will be cleared when
vehicle is driven once (pattern C)
without the same malfunction after
DTC is stored in ECM.
SEF392S
*3: When the sam e m al fun ct ion is
detected in two consecutive trips, the
DTC and the freeze frame data will
be stored in ECM.
*6: The 1st trip DTC and the 1st trip
freeze frame data will be cleared at
the moment OK is detected.
Revision; 2004 April 2003 Q45
EC-70
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EXPLANATION FOR DRIVING PATTERNS FOR “MISFIRE <EXHAUST QUALITY DETERIORATION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern B>
Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.
● The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.
● The B counter will be counted up when driving pattern B is satisfied without any malfunction.
● The MIL will go off when the B counter reaches 3. (*2 in “OBD SYSTEM OPERATION CHART”)
<Driving Pattern C>
Driving pattern C means the vehic le operation as follows:
The following conditions should be satisfied at the same time:
Engine speed: (Engine speed in the freeze frame data) ±375 rpm
Calculated load value: (Calculated load value in the freeze frame data) x (1±0.1) [%]
Engine coolant temperature (T) condition:
● When the freeze frame data shows lower than 70°C (158°F), “T” should be lower than 70°C (158°F).
● When the freeze fram e data shows higher than or equal to 70°C (158°F), “ T” should be higher tha n or
equal to 70°C (158°F).
Example:
If the stored freeze frame data is as follows:
Engine speed: 850 rpm, Calculated load value: 30%, Engine coolant temperature: 80°C (176°F)
To be satisfied with driving pattern C, the vehicle should run under the following conditions:
Engine speed: 475 - 1,225 rpm, Calculated load value: 27 - 33%, Engine coolant temperature: more than 70°C
(158°F)
● The C counter will be cleared when the malfunct ion is detected regardless of vehicle conditions above.
● The C counter wil l be co unte d up wh en ve hicl e co nditi ons ab ove i s sat isf ied w ithou t th e same malf unc tion.
● The DTC will not be displayed af ter C counter reaches 80.
● The 1st trip DTC will be cleared when C counter is counted once without the same malfunction after DTC
is stored in ECM.
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EC-71
ON BOARD DIAGNOSTIC (OBD) SYSTEM
RELATIONSHIP BETWEEN MIL, DTC, 1ST TRIP DTC AND DRIVING PATTERNS EXCEPT FOR
“MISFIRE <EXHAUST QUALITY DETERIORATION>”, “FUEL INJECTION SYSTEM”
*1: When the sam e m al fu nct io n is
detected in two consecutive trips,
MIL will light up.
*4: The DTC and the free ze frame data
will not be displayed any longer after
vehicle is driven 40 times (pattern A)
without the same malfunction.
(The DTC and the freeze frame data
still remain in ECM.)
*7: When the sam e m al fu nct io n is
detected in the 2nd trip, the 1st trip
freeze frame data will be cleared.
*2: MIL will go off after vehicle is driven
3 times (pattern B) without any malfunctions.
*5: When a malfunction is detected for
the first time, the 1st trip DTC and
the 1st trip freeze frame data will be
stored in ECM.
SEF393SD
*3: When the sam e m al fun ct ion is
detected in two consecutive trips, the
DTC and the freeze frame data will
be stored in ECM.
*6: 1st trip DTC will be cleared after
vehicle is driven once (pattern B)
without the same malfunction.
Revision; 2004 April 2003 Q45
EC-72
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EXPLANATION FOR DRIVING PATTERNS EXCEPT FOR “MISFIRE <EXHAUST QUALITY
DETERIORATION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern A>
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● The A counter will be cleared when the malfunction is detected regardless of (1) - (4).
● The A counter will be counted up when (1) - (4) are satisfied without the same malfunction.
● The DTC will not be displayed after the A counter reaches 40.
<Driving Pattern B>
Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.
● The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.
● The B counter will be counted up when driving pattern B is satisfied without any malfunctions.
● The MIL will go off when the B counter reaches 3 (*2 in “OBD SYSTEM OPERATION CHART”).
AEC574
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EC-73
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS PFP:00004 Trouble Diagnosis Introduction EBS00LVV
INTRODUCTION
The engine has an ECM to control major systems such as fuel control, ignition co ntrol, idle air control system, etc. Th e ECM accepts
input signals from sensors and instantly drives act uators. It is essential that both input and output signals are proper and stable. At the
same time, it is important that there are no incidents such as vacuum
leaks, fouled spark plugs, or other incidents with the engine.
MEF036D
It is much more difficult to diagno se an i nciden t that oc curs inte rmittently rather than continuously. Most intermittent incidents are
caused by po or electric connections or improp er wiring. In this ca se,
careful checking of suspected circuits may help prevent the replacement of good parts.
A visual chec k only may no t find the cause of the incidents. A road
test with CONSULT-II (or GST) or a circuit tester connecte d should
be performed. Follow the “Work Flow” on EC-75
Before undertaking a ctual checks, take a fe w minutes to talk with a
customer who approaches with a driveability complaint. The customer can supply good information about such incidents, especially
intermittent ones. Find out what symptoms are present and under
what condition s they occur. A “Diagnostic Worksheet” l ik e t he ex am ple on EC-77
Start your diagnosis by looking for “conventional” malfunctions first.
This will help troubleshoot driveability malfunctions on an electronically controlled en gine vehicle.
should be used.
.
SEF233G
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EC-74
WORK FLOW
Flow Chart
TROUBLE DIAGNOSIS
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*1 If time data of “SELF-DIAG
RESULTS” is other than “0” or “[1t]”,
perform EC-132, "TROUBLE DIAG-
NOSIS FOR INTERMITTENT INCIDENT" .
*4 If malfunctioning part cannot be
detected, perform EC-132, "
BLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
TROU-
*2 If the incident cannot be verified, per-
form EC-132, "
SIS FOR INTERMITTENT
INCIDENT" .
*5 EC-61, "
TROUBLE DIAGNO-
Driving Pattern" *6 EC-128, "TROUBLE DIAGNOSIS -
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PBIB1043E
*3 If the on board diagnostic system
cannot be performed, check main
power supply and ground circuit.
Refer to EC-133, "POWER SUPPLY
CIRCUIT FOR ECM" .
SPECIFICATION VALUE"
Revision; 2004 April 2003 Q45
EC-75
Description for Work Flow
STEP DESCRIPTION
STEP I
STEP II
STEP III
STEP IV
STEP V
STEP VI
STEP VII
Get detailed information about the conditions and the environment when the incident/symptom occurred using the
“DIAGNOSTIC WORK SHEET”, EC-77
Before confirming the concern, check and write down (print out using CONSULT-II or GST) the (1st trip) DTC and the
(1st trip) freeze frame data, then erase the DTC and the data. (Refe r to EC-63, "HOW TO ERASE EMISSION-
RELATED DI AGNOSTIC INFORMATION" .) The (1st trip) DTC and the (1st trip) freeze frame data can be used when
duplicating the incident at STEP III & IV.
If the incident cannot be verified, perform EC-132, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
Study the relationship between the cause, specified by (1st trip) DTC, and t he sym pt om described by the customer.
(The “Symptom Matrix Chart” will be useful. See EC-87, "
Also check related service bulletins for informat i on.
Try to confirm the symptom and under what conditions the incide nt oc cur s.
The “DIAGNOSTIC WORK SHEET” and the freeze frame data are useful to verify the incident. Connect CONSULT -II
to the vehicle in DATA MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform EC-132, "
If the malfunction code is detected, skip STEP IV and perform STEP V.
Try to detect the (1st trip) DTC by driving in (or performing) the “DTC Confirmation Procedure”. Check and read the
(1st trip) DTC and (1st trip) freeze frame data by using CONS U LT-II or GST.
During the (1st trip) DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO TRIG)
mode and check real time diagnosis res ults.
If the incident cannot be verified, perform EC-132, "
In case the “DTC Confirmation Procedure ” is not available, per for m the “Ov era ll Func tion Check” instead. The (1st
trip) DTC cannot be displayed by this check, however, this simplified “check” is an effective alternative.
The “NG” result of the “Overall Function Check” is the sam e as t he (1s t trip) DTC det ect ion.
Ta ke the appr opriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTC PXXXX.
If the normal code is indicated, proceed to the BASIC INSPECTION. (Refer to EC-82, "
form inspections according to the Symptom Matrix Chart. (Refer to EC-87, "
Identify where to begin diagnosis based on the relationship study between symptom and possible causes. Inspect the
system for mechanical binding, loose connectors or wiring damage using (tracing) “Harness Layouts”.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in “DATA MONITOR
(AUTO TRIG)” mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CONSULT-II.
Refer to EC-99, "
Mode" .
The “Diagnostic Procedure” in EC section contains a descr i ption based on open circuit inspection. A short circuit
inspection is also required for the circuit check in the Diagnostic Procedure. For details, refer to “Circuit Inspection” in
How to Perform Efficient Diagnosis for an Electrical Incident" .
GI-26, "
Repair or replace the malfunction parts.
If malfunctioning part cannot be detected, perfor m EC-132, "
DENT" .
Once you have repaired the circuit or replaced a comp onent, you need to run the engine in the same conditions and
circumstances which resulted in the customer's initial complaint.
Perform the “DTC Confirmation Procedure” and confirm the normal code [DTC No. P0000] is detected. If the incident
is still detected in the final check, perform STEP VI by using a meth od different from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (alre ady f ix ed) (1st trip ) DTC in ECM
and TCM (Transmission control module). (Refer to EC-63, "
INFORMATION" and AT-39, "HOW TO ERASE DTC" .)
TROUBLE DIAGNOSIS
.
Symptom Matrix Chart" .)
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
Basic Ins pection" .) Then per-
Symptom Matrix Chart" .)
ECM Terminals and Reference Value" , EC-123, "CONSULT-II Reference Value in Data Monitor
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC
Revision; 2004 April 2003 Q45
EC-76
TROUBLE DIAGNOSIS
DIAGNOSTIC WORKSHEET
Description
There are many opera ting conditio ns that lead to th e malfunction o f
engine compon ent s. A g ood g rasp of such condit ions can ma ke tro ubleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a customer complaint.
Utilize a diagnostic worksheet like the one on the next page in order
to organize all the information for troubleshooting.
Some conditions may cause the MIL to come on steady or blink and
DTC to be detected. Examples:
● Ve hicle ran out of f uel, which caused the engine t o misfire.
● Fuel filler cap was left off or incorrectly screwed on, allowing fuel
to evaporate into the atmosphere.
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EC-77
Worksheet Sample
TROUBLE DIAGNOSIS
MTBL0017
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EC-78
TROUBLE DIAGNOSIS
DTC Inspection Priority Chart EBS00LVW
If some DTCs are disp laye d at the s ame t ime, perform insp ecti ons o ne by one b ase d on th e foll owi ng prio rit y
chart.
NOTE:
If DTC U1000 and/or U1001 i s displayed with other DTC, first perform the troub le diagnosis for DTC
U1000, U1001. Refer to EC-9, "
Priority Detected items (DTC)
1
● U1000 U1001 CAN communication line
● P0101 P0102 P0103 P1102 Mass air flow sensor
● P0112 P0113 P0127 Intake air temperature sensor
● P0117 P0118 P0125 Engine coolant temperature sensor
● P0122 P0123 P0222 P0223 P1225 P1226 P1229 P2135 Throttle pos ition sens or
● P0128 Thermostat function
● P0181 P0182 P0183 Fuel tank temperature sensor
● P0327 P0328 P0332 P0333 Knock sensor
● P0335 Crankshaft position sensor (POS)
● P0340 Cams haft position sen sor (PHASE)
● P0460 P0461 P0462 P0463 P1464 Fuel level sensor
● P0500 Vehicle speed sensor
● P0605 ECM
● P0705 Park/Neutral position (PNP) switch
● P1610 - P1615 NATS
● P1706 Park/Neutral position (PNP) switch
● P1716 Turbine revolution sensor
● P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
INDEX FOR DTC" .
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EC-79
Priority Detected items (DTC)
2 ● P0031 P0032 P0051 P0052 Heated oxygen sensor 1 heater
● P0037 P0038 P0057 P0058 Heated oxygen sensor 2 heater
● P0132 P01 33 P0134 P0152 P0153 P0154 P1143 P1144 P1163 P1164 Heated oxygen sensor 1
● P0138 P01 39 P0158 P0159 P1146 P1147 P1166 P1167 Heated oxygen sensor 2
● P0441 EVAP control system purge flow monitoring
● P0444 P04 45 P1444 EVAP canister purge volume control solenoid valve
● P0447 P14 46 P1448 EVAP canister vent control valve
● P0452 P04 53 EVAP control system pressure sensor
● P0550 Power steering pressure sensor
● P0650 M IL
● P0710 P07 20 P0740 P0744 P0745 P1720 P1730 P1752 P1754 P1757 P1759 P1762 P1764 P1767 P1769 P1772
P1774 A/T related sensors, solenoid valves and sw itch es
● P1065 ECM power supply
● P1111 P1136 Intake va lve timin g control solenoid valve
● P1119 Radiator coolant temperature se nsor
● P1122 Electric throttle control function
● P1124 P1126 P1128 Electric throttle control actuator
● P1140 P1145 Intake valve timing control position sensor
● P1220 Fuel pump control module
● P1217 Engine over temperature (OVERHEAT)
● P1480 Cool i ng fa n spee d cont ro l solenoid valve
● P1490 P1491 Vacuum cut valve bypass valve
● P1805 Brake switc h
3
● P0011 P0021 Intake valve timing control
● P0171 P0172 P0174 P0175 Fuel injection system function
● P0300 - P0308 M isfire
● P0420 P0430 Three way catalyst function
● P0442 P14 42 EVAP control system (SMALL LEAK)
● P0455 EVAP control system (GROSS LEAK)
● P0456 P14 56 (VERY SMALL LEAK)
● P0506 P0507 Idle speed control system
● P1121 Electric throttle control actuator
● P1148 P1168 Closed loop control
● P1211 ABS/TCS control unit
● P1212 ABS/TCS comm unication line
● P1780 Shif t cha nge si gnal
TROUBLE DIAGNOSIS
Revision; 2004 April 2003 Q45
EC-80
TROUBLE DIAGNOSIS
Fail-safe Chart EBS00LVX
When the DTC listed below is detected, the ECM enters fail-safe mode and the MIL lights up.
DTC No. Detected items Engine operating condition in fail-safe mode
P0102
P0103
P1102
P0117
P0118
P0122
P0123
P0222
P0223
P2135
P1121
P1122 Electric throttle con t r ol
P1124
P1126
P1128 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a
P1229 Sensor power suppl y ECM stops the electric throttle control act uator control, throttle valve is maintained at a
P2122
P2123
P2127
P2128
P2138
Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
Engine coolant temperature sensor circuit
Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
Electric throttle control
actuator
function
Throttle control motor relay EC M stops the elect ric throt tle control actuator control, throttle valve is maintained at a
Accelerator pedal position
sensor
Engine coolant temperature will be determined by ECM based on the time after turning
ignition switch “ON” or “START”.
CONSULT-II displays the engine coolant temperature decided by ECM.
Condition
Just as ignition switch is turned
ON or START
More than approx. 4 minutes after
ignition ON or START
Except as shown above
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle val ve to be slo w er than th e nor ma l
condition.
So, the acceleration will be poor.
(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
The ECM controls the electric throttle actuator by regulating the throttle opening around
the idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-saf e mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradua lly by fuel cut . After the vehicl e sto ps,
the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or
more.
ECM stops the electric throttle control actuator control, thro ttl e valve is maintained at a
fixed opening (approx. 5 degrees) by the return spr in g.
fixed opening (approx. 5 degrees) by the return spr in g.
fixed opening (approx. 5 degrees) by the return spr in g.
fixed opening (approx. 5 degrees) by the return spr in g.
The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle val ve to be slo w er than th e nor ma l
condition.
So, the acceleration will be poor.
Engine coolant temperature decided
(CONSULT-II display)
40°C (104°F)
80°C (176°F)
40 - 80°C (104 - 176°F)
(Depends on the time)
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EC-81
TROUBLE DIAGNOSIS
Basic Inspection EBS00LVY
1. INSPECTION START
1. Check servic e r eco rds for an y rece nt repairs that may indicate a related ma lfu nct ion , or a cur ren t need for
scheduled maintenance.
2. Open engine hood and ch ec k the following:
– Harness connectors for improper connections
– Wiring harness for improper connections, pinches and c ut
– Vacuum hoses for splits, kinks and improper co nn ec ti ons
– Hoses and ducts for leaks
– Air cleaner clogging
– Gasket
3. Confirm that electrical or mechanical loads are not ap plied.
– Headlamp switch is OFF.
– Air conditioner switch is OF F.
– Rear window defogger switch is OFF.
– Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
SEF983U
5. Run engine at about 2,000 rpm for about 2 minutes under no
load.
6. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding “Diagnostic Procedure”.
>> GO TO 3
SEF976U
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Revision; 2004 April 2003 Q45
EC-82
TROUBLE DIAGNOSIS
3. CHECK TARGET IDLE SPEED
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
650 ± 50 rpm (in “P” or “N” position)
SEF978U
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Without CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no load, then run engine at idle speed for about
1 minute.
3. Check idle speed.
650 ± 50 rpm (in “P” or “N” position)
OK or NG
OK >> GO TO 10.
NG >> GO TO 4.
4. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-46, "
>> GO TO 5.
Accelerator Pedal Released Position Learning" .
5. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-46, "
Throttle Valve Closed Position Learning" .
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>> GO TO 6.
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EC-83
TROUBLE DIAGNOSIS
6. PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-46, "
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes >> GO TO 7.
No >> 1. Follow the instruction of “Idle Air Volume Learning”.
Idle Air Volume Learning" .
2. GO TO 4.
7. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
650 ± 50 rpm (in “P” or “N” posit i on)
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
650 ± 50 rpm (in “P” or “N” posit i on)
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
SEF058Y
8. DETECT MALFUNCTIONING PART
Check the Following.
● Check camshaft position sensor (PHASE) and circuit. Refer to EC-315 .
● Check crankshaft position sensor (POS) and circuit. Refer to EC-307 .
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replace.
2. GO TO 4.
9. CHECK ECM FUNCTION
1. Substitute anothe r kn own -good ECM to chec k ECM func tion . (E CM ma y be the cau se o f an inci dent , but
this is a rare case.)
2. Perform initializa tion of IV IS (NATS) system and registrati on of all IVIS (NATS) ignition key IDs. Refer to
BL-203, "
ECM Re-Communicating Function" .
>> GO TO 4.
Revision; 2004 April 2003 Q45
EC-84
TROUBLE DIAGNOSIS
10. CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
12 ± 5° BTDC (in “P” or “N” position)
OK or NG
OK >> INSPECTION END
NG >> GO TO 11.
11. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-46, "
>> GO TO 12.
Accelerator Pedal Released Position Learning" .
12. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-46, "
Throttle Valve Closed Position Learning" .
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>> GO TO 13.
13. PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-46, "
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes >> G O T O 14.
No >> 1. Follow the inst ruc tio n of “Idl e Air Volume Learning”.
Idle Air Volume Learning" .
2. GO TO 4.
14. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-II.
650 ± 50 rpm (in “P” or “N” position)
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
650 ± 50 rpm (in “P” or “N” position)
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OK or NG
OK >> GO TO 15.
NG >> GO TO 17.
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EC-85
SEF058Y
TROUBLE DIAGNOSIS
15. CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light.
12 ± 5° BTDC (in “P” or “N” position)
OK or NG
OK >> INSPECTION END
NG >> GO TO 16.
16. CHECK TIMING CHAIN INSTALLATION
PBIB1242E
Check timing chain installation. Refer to EM-35, "
OK or NG
OK >> GO TO 17.
NG >> 1. Repair the timing chain installation.
2. GO TO 4.
TIMING CHAIN" .
17. DETECT MALFUNCTIONING PART
Check the following.
● Check camshaft position sensor (PHASE) and circuit. Refer to EC-315 .
● Check crankshaft position sensor (POS) and circuit. Refer to EC-307 .
OK or NG
OK >> GO TO 18.
NG >> 1. Repair or replace.
2. GO TO 4.
18. CHECK ECM FUNCTION
1. Substitute anothe r kn own -good ECM to chec k ECM func tion . (E CM ma y be the cau se o f an inci dent , but
this is a rare case.)
2. Perform initializa tion of IV IS (NATS) system and registrati on of all IVIS (NATS) ignition key IDs. Refer to
BL-203, "
ECM Re-Communicating Function" .
>> GO TO 4.
Revision; 2004 April 2003 Q45
EC-86
TROUBLE DIAGNOSIS
Symptom Matrix Chart EBS00LVZ
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
A
EC
C
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel
Air Positive crankcase ventilation sys -
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-82
Main power supply and ground circuit 22333 33 23 EC-133
Mass air flow sensor circuit
Engine coolant temperature sensor circu it
Heated oxygen sensor 1 circuit
Throttl e position sensor circuit
Accelerator pedal position sensor circuit 3 2 1
Knock sensor circuit 2 3 EC-303
Crankshaft position sensor (POS) circuit 2 2 EC-307
Camshaft position sensor (PHASE) circuit 3 2 EC-315
Vehicle speed signal circuit 2 3 3 3 EC-395
Fuel pump circuit 11232 22 3 2
Fuel pressure regulator system 334444444 4 EC-48
Injector circuit 11232 22 2 EC-653
Evaporative emission system 334444444 4 EC-684
tem
Incorrect idle speed adjustment 1 1 1 1 1 EC-82
Electric throttle control actuator 112332 222 2 2
Ignition signal circuit 11222 22 2 EC-641
33
1
4444444 41 EC-696
2
33
3
12
222 2
22
Reference
page
D
E
BATTER Y DEAD (UNDER CHARGE)
,
EC-513
EC-666
F
G
H
I
EC-435
,
EC-437
J
K
,
EC-171
,
EC-179
EC-418
EC-190
EC-201
EC-212
EC-221
EC-233
EC-463
EC-469
EC-195,
EC-291
EC-521
EC-523
EC-619
EC-607
EC-613
EC-626
,
,
,
,
,
,
,
,
,
,
L
M
Revision; 2004 April 2003 Q45
EC-87
TROUBLE DIAGNOSIS
SYMPTOM
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/ SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Power steering pressure sensor circuit 2 3 3 EC-401
ECM 22333333333
Intake valve timing control solenoid valve cir-
cuit
PNP switch circuit 3 3 3 3 3 EC-592
Start signal circuit 2 EC-662
Refrigerant pressure sensor circui t 2 3 3 4 EC-672
Electrical load signal circuit 3 3 EC-677
Air conditioner circuit 223333333 3 2ATC-35
Radiator coolant temperature sen sor circuit EC-430
Cooling fan speed control solenoid val ve cir-
cuit
VIAS control solenoid valve circuit 1 EC-633
VDC/TCS/ABS control unit 4
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
332 13223 3 EC-424
Reference
page
BATTERY DEAD (UNDER CHARGE)
EC-407
,
EC-414
EC-571
EC-502
,
EC-503
Revision; 2004 April 2003 Q45
EC-88
TROUBLE DIAGNOSIS
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLA T SPOT
SPARK KNOCK/DETONATI ON
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
Fuel piping 5 5 5 5 5 5
Vapor lock —
Valve deposit
Poor fuel (Heavy weight gaso-
line, Low octane)
Air Air duct
Air cleaner EM-15
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)
Cranking Battery
Engine Cylinder head
Electric throttle control actuator,
Throttle wire
Air leakage from intake manifold/
Collector/Gasket
Generator circuit SC-9
Star ter circuit 3 SC-22
Drive plate 6 EM-73
PNP switch 4 AT-103
Cylinder head gasket 4 3
Cylinder block
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
5
5
5 555 55 5
55555 5
5555
111111 11
55555 55 5 EM-61
66666 66 6
Reference
page
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
FL-9
FL-2
16
EM-15
EM-15
EM-17,
ACC-2
EM-17
SC-4
4
EM-73
, MA-
—
—
A
EC
C
D
E
F
G
H
I
J
K
L
M
Revision; 2004 April 2003 Q45
EC-89
TROUBLE DIAGNOSIS
SYMPTOM
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/ SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Valve
mechanism
Exhaust Exhaust manifold/Tube/Muffler/
Lubrication
Cooling Radiator/H os e/Radiator filler cap
IVIS (INFINITI Vehicle Immobilizer System —
NATS)
1 - 6: The numbers refer to the order of inspection.
Timing chain
Camshaft EM-46
Intake valve timing control EM-35
Intake valve
Exhaust valve
Gasket
Three way catalyst
Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
Oil level (Low)/Filthy oil LU-6
Thermostat 5 CO-24
Water pump CO-22
Water gallery CO-7
Cooling fan 5 CO-18
Coolant level (Low)/Contami-
nated coolant
55555 55 5
55555 55 53 EM-61
5555555 5
55555 55 5
55555 55 45
11
Reference
page
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
EM-35
EM-17
3
EM-25
9 , LU-8
CO-12
CO-9
EC-65,
BL-201
, EX-
, LU-
Revision; 2004 April 2003 Q45
EC-90
TROUBLE DIAGNOSIS
Engine Control Component Parts Location EBS00LW0
A
EC
C
D
E
F
G
H
I
J
K
L
M
PBIB1244E
Revision; 2004 April 2003 Q45
EC-91
TROUBLE DIAGNOSIS
PBIB1258E
Revision; 2004 April 2003 Q45
EC-92
TROUBLE DIAGNOSIS
A
EC
C
D
E
F
G
H
I
J
K
L
M
PBIB1259E
Revision; 2004 April 2003 Q45
EC-93
TROUBLE DIAGNOSIS
PBIB0004E
Revision; 2004 April 2003 Q45
EC-94
TROUBLE DIAGNOSIS
A
EC
C
D
E
F
G
H
I
J
K
L
M
PBIB1260E
Revision; 2004 April 2003 Q45
EC-95
TROUBLE DIAGNOSIS
PBIB1178E
PBIB0016E
Revision; 2004 April 2003 Q45
EC-96
TROUBLE DIAGNOSIS
Circuit Diagram EBS00LW1
A
EC
C
D
E
F
G
H
I
J
K
L
M
TBWM0100E
Revision; 2004 April 2003 Q45
EC-97
TROUBLE DIAGNOSIS
TBWM0120E
Revision; 2004 April 2003 Q45
EC-98
TROUBLE DIAGNOSIS
ECM Harness Connec tor Terminal Layout EBS00LW2
A
EC
C
PBIB0075E
ECM Terminals and Reference Value EBS00LW3
PREPARATION
1. ECM is located behind the glove box. For this inspection,
remove glove box.
2. Remove ECM harness protector.
3. Perform all voltage measurements with the connector connected. Extend tester probe as shown to perfor m tests easily.
● Open harness securing clip to make testing easier.
● Use ext r em e ca re no t to touc h 2 pin s at 1 tim e.
● Data is for comparison and may not be exact.
D
E
F
G
H
PBIB0028E
I
J
K
MEC486B
ECM INSPECTION TABLE
Specification data are reference values and are measur ed between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminal s whe n measurin g inp ut/outpu t voltage. Doing so may result i n damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Revision; 2004 April 2003 Q45
EC-99
L
M
TROUBLE DIAGNOSIS
TER-
MINAL
NO.
5
B/W
6
L
7
BR
13
P
14
OR/L
15
B/R
16
OR
17
G
8BR
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
Injector No. 1
Injector No. 2
Injector No. 3
Injector No. 4
Injector No. 5
Injector No. 6
Injector No. 7
Injector No. 8
Heated oxygen sensor 1
heater (bank 1)
[Engine is running]
● Warm-up condition
● Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
[Engine is running]
● Warm-up condition
● Engine speed is 2,000 rpm
[Engine is running]
● Warm-up condition
● Engine speed is below 3,600 rpm.
BATTERY VOLTAGE
(11 - 14V)
PBIB0042E
BATTERY VOLTAGE
(11 - 14V)
PBIB0043E
Approximately 7V
9 G/Y
10 GY
Heated oxygen sensor 1
heater (bank 2)
Heated oxygen sensor 2
heater (bank 1)
[Engine is running]
● Engine speed is above 3,600 rpm.
[Engine is running]
● Warm-up condition
● Engine speed is below 3,600 rpm.
[Engine is running]
● Engine speed is above 3,600 rpm.
[Engine is running]
● Engine speed is below 3,600 rpm after the
following conditions are met.
– Warm- up condition
– Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load
[Ignition switch “ON”]
● Engine stopped
[Engine is running]
● Engine speed is above 3,600 rpm.
PBIB0519E
BATTERY VOLTAGE
(11 - 14V)
Approximately 7V
PBIB0519E
BATTERY VOLTAGE
(11 - 14V)
0 - 1.0V
BATTERY VOLTAGE
(11 - 14V)
Revision; 2004 April 2003 Q45
EC-100
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