2008 INFINITI FX35 Service Manual

diagnostic menu change time fuel type adblue reset refuelling air suspension

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INFINITI FX35 2008 Service Manual
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ENGINE CONTROL SYSTEM
VQ35DE
SERVICE INFORMATION .. .........................
17
INDEX FOR DTC ......................................

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CONTENTS
ENGINE CONTROL SYSTEM
VQ35DE
SERVICE INFORMATION .. .........................
17
INDEX FOR DTC ............................................ ....17
DTC No. Index .................................................... ....17
Alphabetical Index ...................................................20
PRECAUTIONS ..................................................25
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
25
Precaution for Procedure without Cowl Top Cover ....25
On Board Diagnosis (OBD) System of Engine and
A/T ...........................................................................
25
Precaution ...............................................................26
PREPARATION ..................................................29
Special Service Tool ........................................... ....29
Commercial Service Tool ........................................30
ENGINE CONTROL SYSTEM ............................31
Schematic ........................................................... ....31
Multiport Fuel Injection (MFI) System .....................31
Electronic Ignition (EI) System ................................34
Fuel Cut Control (at No Load and High Engine
Speed) .....................................................................
34
AIR CONDITIONING CUT CONTROL ...............36
Input/Output Signal Chart .................................... ....36
System Description .................................................36
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ...............................................................
37
System Description ............................................. ....37
Component Description ...........................................38
CAN COMMUNICATION ....................................39
System Description ............................................. ....39
EVAPORATIVE EMISSION SYSTEM ................40
Description .......................................................... ....40
Component Inspection ......................................... ....42
Removal and Installation .........................................44
How to Detect Fuel Vapor Leakage .........................44
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ......................................................
46
System Description ..................................................46
Diagnosis Procedure ...............................................46
Component Inspection .............................................48
POSITIVE CRANKCASE VENTILATION .........51
Description ...............................................................51
Component Inspection .............................................51
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) .......................................................
53
Description ...............................................................53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....54
Introduction ..............................................................54
Two Trip Detection Logic .........................................54
Emission-Related Diagnostic Information ................55
Malfunction Indicator Lamp (MIL) ............................71
OBD System Operation Chart .................................74
BASIC SERVICE PROCEDURE .......................80
Basic Inspection ......................................................80
Idle Speed and Ignition Timing Check .....................84
Procedure After Replacing ECM .............................84
VIN Registration ......................................................84
Accelerator Pedal Released Position Learning .......85
Throttle Valve Closed Position Learning .................85
Idle Air Volume Learning .........................................85
Fuel Pressure Check ...............................................87
TROUBLE DIAGNOSIS ....................................89
Trouble Diagnosis Introduction ................................89
DTC Inspection Priority Chart ..................................93
Fail-Safe Chart ........................................................95
Symptom Matrix Chart .............................................96
Engine Control Component Parts Location ...........100
Vacuum Hose Drawing ..........................................106
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EC-2
Circuit Diagram ......................................................107
ECM Harness Connector Terminal Layout ............109
ECM Terminal and Reference Value .....................109
CONSU

EC-2
Circuit Diagram ......................................................107
ECM Harness Connector Terminal Layout ............109
ECM Terminal and Reference Value .....................109
CONSULT-III Function (ENGINE) .........................117
Generic Scan Tool (GST) Function .......................125
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
127
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
131
Description ........................................................... ..131
Testing Condition ...................................................131
Inspection Procedure .............................................131
Diagnosis Procedure .............................................131
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT ........................................................
139
Description ........................................................... ..139
Diagnosis Procedure .............................................139
POWER SUPPLY AND GROUND CIRCUIT ...140
Wiring Diagram .................................................... ..140
Diagnosis Procedure .............................................141
Ground Inspection .................................................144
DTC U1000, U1001 CAN COMMUNICATION
LINE .................................................................
146
Description ........................................................... ..146
On Board Diagnosis Logic .....................................146
DTC Confirmation Procedure ................................146
Wiring Diagram ......................................................147
Diagnosis Procedure .............................................147
DTC U1010 CAN COMMUNICATION .............148
Description ........................................................... ..148
On Board Diagnosis Logic .....................................148
DTC Confirmation Procedure ................................148
Diagnosis Procedure .............................................148
DTC P0011, P0021 IVT CONTROL .................149
Description ........................................................... ..149
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
149
On Board Diagnosis Logic .....................................150
DTC Confirmation Procedure ................................150
Diagnosis Procedure .............................................151
Component Inspection ...........................................152
Removal and Installation .......................................152
DTC P0031, P0032, P0051, P0052 A/F SEN-
SOR 1 HEATER ...............................................
153
Description ........................................................... ..153
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
153
On Board Diagnosis Logic .....................................153
DTC Confirmation Procedure ................................153
Wiring Diagram ......................................................154
Diagnosis Procedure .............................................157
Component Inspection ...........................................158
Removal and Installation .......................................159
DTC P0037, P0038, P0057, P0058 HO2S2
HEATER ...........................................................
160
Description ........................................................... .160
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
160
On Board Diagnosis Logic ....................................160
DTC Confirmation Procedure ................................160
Wiring Diagram .....................................................162
Diagnosis Procedure .............................................165
Component Inspection ..........................................166
Removal and Installation .......................................167
DTC P0075, P0081 IVT CONTROL SOLE-
NOID VALVE ....................................................
168
Component Description ....................................... .168
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
168
On Board Diagnosis Logic ....................................168
DTC Confirmation Procedure ................................168
Wiring Diagram .....................................................169
Diagnosis Procedure .............................................172
Component Inspection ..........................................173
Removal and Installation .......................................174
DTC P0101 MAF SENSOR ..............................175
Component Description ....................................... .175
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
175
On Board Diagnosis Logic ....................................175
DTC Confirmation Procedure ................................175
Overall Function Check .........................................176
Wiring Diagram .....................................................177
Diagnosis Procedure .............................................178
Component Inspection ..........................................180
Removal and Installation .......................................181
DTC P0102, P0103 MAF SENSOR ..................182
Component Description ....................................... .182
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
182
On Board Diagnosis Logic ....................................182
DTC Confirmation Procedure ................................182
Wiring Diagram .....................................................184
Diagnosis Procedure .............................................185
Component Inspection ..........................................187
Removal and Installation .......................................188
DTC P0112, P0113 IAT SENSOR ....................189
Component Description ....................................... .189
On Board Diagnosis Logic ....................................189
DTC Confirmation Procedure ................................189
Wiring Diagram .....................................................190
Diagnosis Procedure .............................................190
Component Inspection ..........................................192
Removal and Installation .......................................192
DTC P0117, P0118 ECT SENSOR ...................193
Component Description ....................................... .193
On Board Diagnosis Logic ....................................193
DTC Confirmation Procedure ................................194
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EC-3
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Wiring Diagram ...................................................
..
195
Diagnosis Procedure .............................................195
Component Inspect

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Wiring Diagram ...................................................
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195
Diagnosis Procedure .............................................195
Component Inspection ..........................................197
Removal and Installation .......................................197
DTC P0122, P0123 TP SENSOR .....................198
Component Description ....................................... ..198
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
198
On Board Diagnosis Logic ....................................198
DTC Confirmation Procedure ................................198
Wiring Diagram .....................................................199
Diagnosis Procedure .............................................200
Component Inspection ..........................................202
Removal and Installation .......................................203
DTC P0125 ECT SENSOR ...............................204
Component Description ....................................... ..204
On Board Diagnosis Logic ....................................204
DTC Confirmation Procedure ................................204
Diagnosis Procedure .............................................205
Component Inspection ..........................................205
Removal and Installation .......................................206
DTC P0127 IAT SENSOR ................................207
Component Description ....................................... ..207
On Board Diagnosis Logic ....................................207
DTC Confirmation Procedure ................................207
Diagnosis Procedure .............................................208
Component Inspection ..........................................208
Removal and Installation .......................................209
DTC P0128 THERMOSTAT FUNCTION ..........210
On Board Diagnosis Logic .................................. ..210
DTC Confirmation Procedure ................................210
Diagnosis Procedure .............................................210
Component Inspection ..........................................211
Removal and Installation .......................................211
DTC P0130, P0150 A/F SENSOR 1 .................212
Component Description ....................................... ..212
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
212
On Board Diagnosis Logic ....................................212
DTC Confirmation Procedure ................................212
Overall Function Check .........................................213
Wiring Diagram .....................................................214
Diagnosis Procedure .............................................217
Removal and Installation .......................................219
DTC P0131, P0151 A/F SENSOR 1 .................220
Component Description ....................................... ..220
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
220
On Board Diagnosis Logic ....................................220
DTC Confirmation Procedure ................................220
Wiring Diagram .....................................................222
Diagnosis Procedure .............................................225
Removal and Installation .......................................227
DTC P0132, P0152 A/F SENSOR 1 ................228
Component Description ....................................... ..228
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
228
On Board Diagnosis Logic .....................................228
DTC Confirmation Procedure ................................228
Wiring Diagram ......................................................230
Diagnosis Procedure .............................................233
Removal and Installation .......................................235
DTC P0133, P0153 A/F SENSOR 1 ................236
Component Description .........................................236
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
236
On Board Diagnosis Logic .....................................236
DTC Confirmation Procedure ................................236
Wiring Diagram ......................................................238
Diagnosis Procedure .............................................241
Removal and Installation .......................................244
DTC P0137, P0157 HO2S2 .............................245
Component Description .........................................245
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
245
On Board Diagnosis Logic .....................................245
DTC Confirmation Procedure ................................245
Overall Function Check .........................................246
Wiring Diagram ......................................................247
Diagnosis Procedure .............................................250
Component Inspection ...........................................252
Removal and Installation .......................................253
DTC P0138, P0158 HO2S2 .............................254
Component Description .........................................254
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
254
On Board Diagnosis Logic .....................................254
DTC Confirmation Procedure ................................255
Overall Function Check .........................................255
Wiring Diagram ......................................................257
Diagnosis Procedure .............................................260
Component Inspection ...........................................263
Removal and Installation .......................................264
DTC P0139, P0159 HO2S2 .............................265
Component Description .........................................265
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
265
On Board Diagnosis Logic .....................................265
DTC Confirmation Procedure ................................265
Overall Function Check .........................................266
Wiring Diagram ......................................................267
Diagnosis Procedure .............................................270
Component Inspection ...........................................272
Removal and Installation .......................................273
DTC P0171, P0174 FUEL INJECTION SYS-
TEM FUNCTION ..............................................
274
On Board Diagnosis Logic .....................................274
DTC Confirmation Procedure ................................274
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INFINITI FX35 2008 Service Manual
EC-4
Wiring Diagram ......................................................276
Diagnosis Procedure .............................................279
DTC P0172, P0175 FUEL INJECTION SYS-
TEM FUNCTION

EC-4
Wiring Diagram ......................................................276
Diagnosis Procedure .............................................279
DTC P0172, P0175 FUEL INJECTION SYS-
TEM FUNCTION ..............................................
284
On Board Diagnosis Logic ................................... ..284
DTC Confirmation Procedure ................................284
Wiring Diagram ......................................................286
Diagnosis Procedure .............................................289
DTC P0181 FTT SENSOR ...............................294
Component Description ....................................... ..294
On Board Diagnosis Logic .....................................294
DTC Confirmation Procedure ................................294
Wiring Diagram ......................................................295
Diagnosis Procedure .............................................296
Component Inspection ...........................................297
Removal and Installation .......................................297
DTC P0182, P0183 FTT SENSOR ..................298
Component Description ....................................... ..298
On Board Diagnosis Logic .....................................298
DTC Confirmation Procedure ................................298
Wiring Diagram ......................................................299
Diagnosis Procedure .............................................299
Component Inspection ...........................................301
Removal and Installation .......................................301
DTC P0222, P0223 TP SENSOR ....................302
Component Description ....................................... ..302
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
302
On Board Diagnosis Logic .....................................302
DTC Confirmation Procedure ................................302
Wiring Diagram ......................................................303
Diagnosis Procedure .............................................304
Component Inspection ...........................................306
Removal and Installation .......................................307
DTC P0300, P0301, P0302, P0303, P0304,
P0305, P0306 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 6 CYLINDER MISFIRE ..............
308
On Board Diagnosis Logic ................................... ..308
DTC Confirmation Procedure ................................308
Diagnosis Procedure .............................................309
DTC P0327, P0328 KS ....................................315
Component Description ....................................... ..315
On Board Diagnosis Logic .....................................315
DTC Confirmation Procedure ................................315
Wiring Diagram ......................................................316
Diagnosis Procedure .............................................317
Component Inspection ...........................................318
Removal and Installation .......................................318
DTC P0335 CKP SENSOR (POS) ...................319
Component Description ....................................... ..319
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
319
On Board Diagnosis Logic .....................................319
DTC Confirmation Procedure ............................... .319
Wiring Diagram .....................................................320
Diagnosis Procedure .............................................321
Component Inspection ..........................................323
Removal and Installation .......................................323
DTC P0340, P0345 CMP SENSOR (PHASE) ..324
Component Description ........................................324
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
324
On Board Diagnosis Logic ....................................324
DTC Confirmation Procedure ................................324
Wiring Diagram .....................................................325
Diagnosis Procedure .............................................328
Component Inspection ..........................................330
Removal and Installation .......................................331
DTC P0420, P0430 THREE WAY CATALYST
FUNCTION ........................................................
332
On Board Diagnosis Logic ................................... .332
DTC Confirmation Procedure ................................332
Overall Function Check .........................................333
Diagnosis Procedure .............................................333
DTC P0441 EVAP CONTROL SYSTEM ..........336
System Description .............................................. .336
On Board Diagnosis Logic ....................................336
DTC Confirmation Procedure ................................336
Overall Function Check .........................................337
Diagnosis Procedure .............................................337
DTC P0442 EVAP CONTROL SYSTEM ..........341
On Board Diagnosis Logic ................................... .341
DTC Confirmation Procedure ................................341
Diagnosis Procedure .............................................342
DTC P0443 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ...............
348
Description ........................................................... .348
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
348
On Board Diagnosis Logic ....................................349
DTC Confirmation Procedure ................................349
Wiring Diagram .....................................................350
Diagnosis Procedure .............................................351
Component Inspection ..........................................354
Removal and Installation .......................................354
DTC P0444, P0445 EVAP CANISTER PURGE
VOLUME CONTROL SOLENOID VALVE .......
355
Description ........................................................... .355
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
355
On Board Diagnosis Logic ....................................356
DTC Confirmation Procedure ................................356
Wiring Diagram .....................................................357
Diagnosis Procedure .............................................358
Component Inspection ..........................................360
Removal and Installation .......................................360
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DTC P0447 EVAP CANISTER VENT CON-
TROL VALVE ................................................. ..
361
Component Description .....................................

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DTC P0447 EVAP CANISTER VENT CON-
TROL VALVE ................................................. ..
361
Component Description ....................................... ..361
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
361
On Board Diagnosis Logic ....................................361
DTC Confirmation Procedure ................................361
Wiring Diagram .....................................................362
Diagnosis Procedure .............................................363
Component Inspection ..........................................364
DTC P0448 EVAP CANISTER VENT CON-
TROL VALVE ...................................................
366
Component Description ....................................... ..366
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
366
On Board Diagnosis Logic ....................................366
DTC Confirmation Procedure ................................366
Wiring Diagram .....................................................368
Diagnosis Procedure .............................................369
Component Inspection ..........................................370
DTC P0451 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
372
Component Description ....................................... ..372
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
372
On Board Diagnosis Logic ....................................372
DTC Confirmation Procedure ................................372
Diagnosis Procedure .............................................373
Component Inspection ..........................................373
DTC P0452 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
375
Component Description ....................................... ..375
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
375
On Board Diagnosis Logic ....................................375
DTC Confirmation Procedure ................................375
Wiring Diagram .....................................................377
Diagnosis Procedure .............................................378
Component Inspection ..........................................380
DTC P0453 EVAP CONTROL SYSTEM
PRESSURE SENSOR .................................... ..
381
Component Description ....................................... ..381
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
381
On Board Diagnosis Logic ....................................381
DTC Confirmation Procedure ................................381
Wiring Diagram .....................................................383
Diagnosis Procedure .............................................384
Component Inspection ..........................................387
DTC P0455 EVAP CONTROL SYSTEM ..........388
On Board Diagnosis Logic .................................. ..388
DTC Confirmation Procedure ................................388
Diagnosis Procedure .............................................389
DTC P0456 EVAP CONTROL SYSTEM ..........394
On Board Diagnosis Logic ................................... ..394
DTC Confirmation Procedure ................................395
Overall Function Check .........................................395
Diagnosis Procedure .............................................396
DTC P0460 FUEL LEVEL SENSOR ...............401
Component Description .........................................401
On Board Diagnosis Logic .....................................401
DTC Confirmation Procedure ................................401
Diagnosis Procedure .............................................401
Removal and Installation .......................................402
DTC P0461 FUEL LEVEL SENSOR ...............403
Component Description .........................................403
On Board Diagnosis Logic .....................................403
Overall Function Check .........................................403
Diagnosis Procedure .............................................404
Removal and Installation .......................................404
DTC P0462, P0463 FUEL LEVEL SENSOR ..405
Component Description .........................................405
On Board Diagnosis Logic .....................................405
DTC Confirmation Procedure ................................405
Diagnosis Procedure .............................................405
Removal and Installation .......................................406
DTC P0500 VSS ..............................................407
Description .............................................................407
On Board Diagnosis Logic .....................................407
DTC Confirmation Procedure ................................407
Overall Function Check .........................................408
Diagnosis Procedure .............................................408
DTC P0506 ISC SYSTEM ...............................409
Description .............................................................409
On Board Diagnosis Logic .....................................409
DTC Confirmation Procedure ................................409
Diagnosis Procedure .............................................409
DTC P0507 ISC SYSTEM ...............................411
Description .............................................................411
On Board Diagnosis Logic .....................................411
DTC Confirmation Procedure ................................411
Diagnosis Procedure .............................................411
DTC P0550 PSP SENSOR ..............................413
Component Description .........................................413
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
413
On Board Diagnosis Logic .....................................413
DTC Confirmation Procedure ................................413
Wiring Diagram ......................................................414
Diagnosis Procedure .............................................415
Component Inspection ...........................................416
Removal and Installation .......................................417
DTC P0603 ECM POWER SUPPLY ...............418
Component Description .........................................418
On Board Diagnosis Logic .....................................418
DTC Confirmation Procedure ................................418
Wiring Diagram ......................................................419
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EC-6
Diagnosis Procedure .............................................420
DTC P0605 ECM ..............................................422
Component Description .....................................

EC-6
Diagnosis Procedure .............................................420
DTC P0605 ECM ..............................................422
Component Description ....................................... ..422
On Board Diagnosis Logic .....................................422
DTC Confirmation Procedure ................................422
Diagnosis Procedure .............................................423
DTC P0643 SENSOR POWER SUPPLY ........424
On Board Diagnosis Logic ................................... ..424
DTC Confirmation Procedure ................................424
Wiring Diagram ......................................................425
Diagnosis Procedure .............................................426
DTC P0850 PNP SWITCH ...............................429
Component Description ....................................... ..429
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
429
On Board Diagnosis Logic .....................................429
DTC Confirmation Procedure ................................429
Overall Function Check .........................................430
Wiring Diagram ......................................................431
Diagnosis Procedure .............................................432
DTC P1148, P1168 CLOSED LOOP CON-
TROL ................................................................
434
On Board Diagnosis Logic ................................... ..434
DTC P1211 TCS CONTROL UNIT ..................435
Description ........................................................... ..435
On Board Diagnosis Logic .....................................435
DTC Confirmation Procedure ................................435
Diagnosis Procedure .............................................435
DTC P1212 TCS COMMUNICATION LINE .....436
Description ........................................................... ..436
On Board Diagnosis Logic .....................................436
DTC Confirmation Procedure ................................436
Diagnosis Procedure .............................................436
DTC P1217 ENGINE OVER TEMPERATURE .437
Description ........................................................... ..437
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
438
On Board Diagnosis Logic .....................................438
Overall Function Check .........................................439
Wiring Diagram ......................................................440
Diagnosis Procedure .............................................441
Main 12 Causes of Overheating ............................445
Component Inspection ...........................................446
DTC P1225 TP SENSOR .................................447
Component Description ....................................... ..447
On Board Diagnosis Logic .....................................447
DTC Confirmation Procedure ................................447
Diagnosis Procedure .............................................447
Removal and Installation .......................................448
DTC P1226 TP SENSOR .................................449
Component Description ....................................... ..449
On Board Diagnosis Logic .....................................449
DTC Confirmation Procedure ............................... .449
Diagnosis Procedure .............................................449
Removal and Installation .......................................450
DTC P1421 COLD START CONTROL ............451
Description ........................................................... .451
On Board Diagnosis Logic ....................................451
DTC Confirmation Procedure ................................451
Diagnosis Procedure .............................................451
DTC P1564 ICC STEERING SWITCH ..............453
Component Description ....................................... .453
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
453
On Board Diagnosis Logic ....................................453
DTC Confirmation Procedure ................................453
Wiring Diagram .....................................................455
Diagnosis Procedure .............................................456
Component Inspection ..........................................458
DTC P1564 ASCD STEERING SWITCH ..........459
Component Description ....................................... .459
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
459
On Board Diagnosis Logic ....................................459
DTC Confirmation Procedure ................................459
Wiring Diagram .....................................................460
Diagnosis Procedure .............................................461
Component Inspection ..........................................463
DTC P1568 ICC FUNCTION .............................464
On Board Diagnosis Logic ................................... .464
DTC Confirmation Procedure ................................464
Diagnosis Procedure .............................................464
DTC P1572 ICC BRAKE SWITCH ...................465
Component Description ....................................... .465
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
465
On Board Diagnosis Logic ....................................465
DTC Confirmation Procedure ................................465
Wiring Diagram .....................................................467
Diagnosis Procedure .............................................468
Component Inspection ..........................................472
DTC P1572 ASCD BRAKE SWITCH ...............474
Component Description ....................................... .474
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
474
On Board Diagnosis Logic ....................................474
DTC Confirmation Procedure ................................474
Wiring Diagram .....................................................476
Diagnosis Procedure .............................................477
Component Inspection ..........................................480
DTC P1574 ICC VEHICLE SPEED SENSOR ..481
Component Description ........................................481
On Board Diagnosis Logic ....................................481
DTC Confirmation Procedure ................................481
Diagnosis Procedure .............................................481
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INFINITI FX35 2008 Service Manual
EC-7
C
DE
F
G H
I
J
K L
M
EC A
N
O P
DTC P1574 ASCD VEHICLE SPEED SEN-
SOR ................................................................ ..
483
Component Description ..............................

EC-7
C
DE
F
G H
I
J
K L
M
EC A
N
O P
DTC P1574 ASCD VEHICLE SPEED SEN-
SOR ................................................................ ..
483
Component Description ....................................... ..483
On Board Diagnosis Logic ....................................483
DTC Confirmation Procedure ................................483
Diagnosis Procedure .............................................483
DTC P1715 INPUT SPEED SENSOR (TUR-
BINE REVOLUTION SENSOR) .......................
485
Description .......................................................... ..485
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
485
On Board Diagnosis Logic ....................................485
Diagnosis Procedure .............................................485
DTC P1805 BRAKE SWITCH ..........................486
Description .......................................................... ..486
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
486
On Board Diagnosis Logic ....................................486
DTC Confirmation Procedure ................................486
Wiring Diagram .....................................................487
Diagnosis Procedure .............................................488
Component Inspection ..........................................489
DTC P2100, P2103 THROTTLE CONTROL
MOTOR RELAY ...............................................
490
Component Description ....................................... ..490
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
490
On Board Diagnosis Logic ....................................490
DTC Confirmation Procedure ................................490
Wiring Diagram .....................................................491
Diagnosis Procedure .............................................492
DTC P2101 ELECTRIC THROTTLE CON-
TROL FUNCTION ........................................... ..
494
Description .......................................................... ..494
On Board Diagnosis Logic ....................................494
DTC Confirmation Procedure ................................494
Wiring Diagram .....................................................495
Diagnosis Procedure .............................................496
Component Inspection ..........................................499
Removal and Installation .......................................499
DTC P2118 THROTTLE CONTROL MOTOR ..500
Component Description .........................................500
On Board Diagnosis Logic ....................................500
DTC Confirmation Procedure ................................500
Wiring Diagram .....................................................501
Diagnosis Procedure .............................................502
Component Inspection ..........................................503
Removal and Installation .......................................503
DTC P2119 ELECTRIC THROTTLE CON-
TROL ACTUATOR ...........................................
504
Component Description ....................................... ..504
On Board Diagnosis Logic ....................................504
DTC Confirmation Procedure ................................504
Diagnosis Procedure .............................................505
DTC P2122, P2123 APP SENSOR .................506
Component Description ....................................... ..506
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
506
On Board Diagnosis Logic .....................................506
DTC Confirmation Procedure ................................507
Wiring Diagram ......................................................508
Diagnosis Procedure .............................................509
Component Inspection ...........................................511
Removal and Installation .......................................511
DTC P2127, P2128 APP SENSOR .................512
Component Description .........................................512
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
512
On Board Diagnosis Logic .....................................512
DTC Confirmation Procedure ................................512
Wiring Diagram ......................................................513
Diagnosis Procedure .............................................514
Component Inspection ...........................................517
Removal and Installation .......................................517
DTC P2135 TP SENSOR ................................518
Component Description .........................................518
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
518
On Board Diagnosis Logic .....................................518
DTC Confirmation Procedure ................................518
Wiring Diagram ......................................................519
Diagnosis Procedure .............................................520
Component Inspection ...........................................522
Removal and Installation .......................................523
DTC P2138 APP SENSOR .............................524
Component Description .........................................524
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
524
On Board Diagnosis Logic .....................................524
DTC Confirmation Procedure ................................525
Wiring Diagram ......................................................526
Diagnosis Procedure .............................................527
Component Inspection ...........................................530
Removal and Installation .......................................531
DTC P2A00, P2A03 A/F SENSOR 1 ..............532
Component Description .........................................532
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
532
On Board Diagnosis Logic .....................................532
DTC Confirmation Procedure ................................532
Wiring Diagram ......................................................534
Diagnosis Procedure .............................................537
Removal and Installation .......................................541
ASCD BRAKE SWITCH ..................................542
Component Description .........................................542
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
542
Wiring Diagram ......................................................543
Diagnosis Procedure .............................................544
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INFINITI FX35 2008 Service Manual
EC-8
Component Inspection ...........................................545
ASCD INDICATOR ..........................................547
Component Description ....................................... .

EC-8
Component Inspection ...........................................545
ASCD INDICATOR ..........................................547
Component Description ....................................... ..547
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
547
Wiring Diagram ......................................................548
Diagnosis Procedure .............................................548
ELECTRICAL LOAD SIGNAL .........................550
Description ........................................................... ..550
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
550
Diagnosis Procedure .............................................550
FUEL INJECTOR .............................................552
Component Description ....................................... ..552
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
552
Wiring Diagram ......................................................553
Diagnosis Procedure .............................................554
Component Inspection ...........................................557
Removal and Installation .......................................557
FUEL PUMP .....................................................558
Description ........................................................... ..558
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
558
Wiring Diagram ......................................................559
Diagnosis Procedure .............................................560
Component Inspection ...........................................562
Removal and Installation .......................................562
ICC BRAKE SWITCH ......................................563
Component Description ....................................... ..563
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
563
Wiring Diagram ......................................................564
Diagnosis Procedure .............................................565
Component Inspection ...........................................567
IGNITION SIGNAL ...........................................569
Component Description ....................................... ..569
Wiring Diagram ......................................................570
Diagnosis Procedure .............................................575
Component Inspection ...........................................578
Removal and Installation .......................................580
REFRIGERANT PRESSURE SENSOR ..........581
Component Description ....................................... ..581
Wiring Diagram ......................................................582
Diagnosis Procedure .............................................583
Removal and Installation .......................................585
SNOW MODE SWITCH ...................................586
Description ........................................................... ..586
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
586
Wiring Diagram ......................................................587
Diagnosis Procedure .............................................587
Component Inspection ...........................................589
MIL AND DATA LINK CONNECTOR ...............591
Wiring Diagram .................................................... .591
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
593
Fuel Pressure ....................................................... .593
Idle Speed and Ignition Timing .............................593
Calculated Load Value ..........................................593
Mass Air Flow Sensor ...........................................593
Intake Air Temperature Sensor .............................593
Engine Coolant Temperature Sensor ...................593
Air Fuel Ratio (A/F) Sensor 1 Heater ....................593
Heated Oxygen sensor 2 Heater ..........................593
Crankshaft Position Sensor (POS) .......................594
Camshaft Position Sensor (PHASE) .....................594
Throttle Control Motor .......................................... .594
Fuel Injector ..........................................................594
Fuel Pump .............................................................594
VK45DE
SERVICE INFORMATION .. .......................
595
INDEX FOR DTC ............................................ ..595
DTC No. Index ..................................................... .595
Alphabetical Index .................................................598
PRECAUTIONS .............................................. ..603
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
603
Precaution for Procedure without Cowl Top Cover .603
On Board Diagnosis (OBD) System of Engine and
A/T ........................................................................
603
Precaution .............................................................604
PREPARATION ................................................607
Special Service Tool ............................................ .607
Commercial Service Tool ......................................608
ENGINE CONTROL SYSTEM ..........................609
Schematic ............................................................ .609
Multiport Fuel Injection (MFI) System ...................609
Electronic Ignition (EI) System ..............................612
Fuel Cut Control (at No Load and High Engine
Speed) ..................................................................
612
AIR CONDITIONING CUT CONTROL .............614
Input/Output Signal Chart .................................... .614
System Description ...............................................614
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ..............................................................
615
System Description .............................................. .615
Component Description ........................................616
CAN COMMUNICATION ..................................617
System Description .............................................. .617
EVAPORATIVE EMISSION SYSTEM ..............618
Description ........................................................... .618
Component Inspection ..........................................620
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