2008 INFINITI QX56 Factory Service Manual

wipers key battery clock setting pairing phone oil capacity audio

Load previous 8 pages

Page 1297 of 4083

INFINITI QX56 2008 Factory Service Manual REAR FINAL DRIVEDLN-267
< DISASSEMBLY AND ASSEMBLY > [REAR FINAL DRIVE: R230]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
17. Apply a 3.2mm (0.126 in) bead of sealant to the mating surface of the carrier cover.

Page 1298 of 4083

INFINITI QX56 2008 Factory Service Manual DLN-268
< SERVICE DATA AND SPECIFICATIONS (SDS) [REAR FINAL DRIVE: R230]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Speci

Page 1299 of 4083

INFINITI QX56 2008 Factory Service Manual SERVICE DATA AND SPECIFICATIONS (SDS)DLN-269
< SERVICE DATA AND SPECIFICATIONS (SDS) [REAR FINAL DRIVE: R230]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
Side Gear Thrust Washer
Unit: mm (in)
*: Always check w

Page 1300 of 4083

INFINITI QX56 2008 Factory Service Manual EC-1
ENGINE
C
DE
F
G H
I
J
K L
M
SECTION EC
A
EC
N
O P
CONTENTS
ENGINE CONTROL SYSTEM
VK56DE
BASIC INSPECTION ....... .............................
8
DIAGNOSIS AND REPAIR WORKFLOW ..... .....8
Troub

EC-1
ENGINE
C
DE
F
G H
I
J
K L
M
SECTION EC
A
EC
N
O P
CONTENTS
ENGINE CONTROL SYSTEM
VK56DE
BASIC INSPECTION ....... .............................
8
DIAGNOSIS AND REPAIR WORKFLOW ..... .....8
Trouble Diagnosis Introduction ........................... ......8
INSPECTION AND ADJUSTMENT ....................13
Basic Inspection .................................................. ....13
Idle Speed and Ignition Timing Check ....................17
Procedure After Replacing ECM .............................17
VIN Registration ......................................................17
Accelerator Pedal Released Position Learning .......18
Throttle Valve Closed Position Learning .................18
Idle Air Volume Learning .........................................18
FUNCTION DIAGNOSIS ..............................21
ENGINE CONTROL SYSTEM ........................ ....21
System Diagram .................................................. ....21
Engine Control Component Parts Location .............22
MULTIPORT FUEL INJECTION SYSTEM ..... ....28
System Description ............................................. ....28
ELECTRIC IGNITION SYSTEM ..................... ....31
System Description ............................................. ....31
AIR CONDITIONING CUT CONTROL ...............32
Input/Output Signal Chart .................................... ....32
System Description .................................................32
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ...............................................................
33
System Description ............................................. ....33
Component Description ...........................................34
CAN COMMUNICATION ....................................35
System Description ............................................. ....35
COOLING FAN CONTROL ................................36
Description ..............................................................36
EVAPORATIVE EMISSION SYSTEM ...............37
Description ........................................................... ....37
INTAKE VALVE TIMING CONTROL ................40
Description ...............................................................40
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....41
Introduction ..............................................................41
Two Trip Detection Logic .........................................41
Emission-related Diagnostic Information .................42
Malfunction Indicator Lamp (MIL) ............................55
OBD System Operation Chart .................................58
CONSULT-III Function (ENGINE) ...........................63
Generic Scan Tool (GST) Function .........................72
COMPONENT DIAGNOSIS .........................75
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ...............................................................
75
Description ........................................................... ....75
Testing Condition .....................................................75
Inspection Procedure ...............................................75
Diagnosis Procedure ...............................................76
POWER SUPPLY AND GROUND CIRCUIT ....83
Diagnosis Procedure ...............................................83
Ground Inspection ...................................................86
U1000, U1001 CAN COMM CIRCUIT ...............87
Description ...............................................................87
On Board Diagnosis Logic .......................................87
DTC Confirmation Procedure ..................................87
Diagnosis Procedure ...............................................87
U1010 CONTROL UNIT (CAN) .........................88
Description ...............................................................88
On Board Diagnosis Logic .......................................88
DTC Confirmation Procedure ..................................88
Diagnosis Procedure ...............................................88
P0011, P0021 IVT CONTROL ...........................90
On Board Diagnosis Logic .......................................90
Revision: March 2010 2008 QX56

Page 1301 of 4083

INFINITI QX56 2008 Factory Service Manual EC-2
DTC Confirmation Procedure .................................90
Diagnosis Procedure ..............................................91
Component Inspection ........................................

EC-2
DTC Confirmation Procedure .................................90
Diagnosis Procedure ..............................................91
Component Inspection ............................................95
P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER .............................................................
97
Description ........................................................... ...97
On Board Diagnosis Logic ......................................97
DTC Confirmation Procedure .................................97
Diagnosis Procedure ..............................................97
Component Inspection ............................................99
P0037, P0038, P0057, P0058 HO2S2 HEAT-
ER ....................................................................
100
Description ........................................................... ..100
On Board Diagnosis Logic .....................................100
DTC Confirmation Procedure ................................100
Diagnosis Procedure .............................................101
Component Inspection ...........................................102
P0075, P0081 IVT CONTROL SOLENOID
VALVE .............................................................
103
Component Description ....................................... ..103
On Board Diagnosis Logic .....................................103
DTC Confirmation Procedure ................................103
Diagnosis Procedure .............................................103
Component Inspection ...........................................104
P0101 MAF SENSOR ......................................106
Component Description ....................................... ..106
On Board Diagnosis Logic .....................................106
DTC Confirmation Procedure ................................106
Overall Function Check .........................................108
Diagnosis Procedure .............................................109
Component Inspection ...........................................111
P0102, P0103 MAF SENSOR ..........................113
Component Description ....................................... ..113
On Board Diagnosis Logic .....................................113
DTC Confirmation Procedure ................................113
Diagnosis Procedure .............................................114
Component Inspection ...........................................115
P0112, P0113 IAT SENSOR ............................118
Component Description ....................................... ..118
On Board Diagnosis Logic .....................................118
DTC Confirmation Procedure ................................118
Diagnosis Procedure .............................................118
Component Inspection ...........................................120
P0116 ECT SENSOR .......................................121
Component Description ....................................... ..121
On Board Diagnosis Logic .....................................121
DTC Confirmation Procedure ................................121
Diagnosis Procedure .............................................122
Component Inspection ...........................................122
P0117, P0118 ECT SENSOR ..........................124
Component Description ....................................... ..124
On Board Diagnosis Logic .....................................124
DTC Confirmation Procedure ............................... .125
Diagnosis Procedure .............................................125
Component Inspection ..........................................126
P0122, P0123 TP SENSOR ..............................128
Component Description ........................................128
On Board Diagnosis Logic ....................................128
DTC Confirmation Procedure ................................128
Diagnosis Procedure .............................................128
Component Inspection ..........................................131
P0125 ECT SENSOR .......................................132
Component Description ........................................132
On Board Diagnosis Logic ....................................132
DTC Confirmation Procedure ................................132
Diagnosis Procedure .............................................133
Component Inspection ..........................................133
P0127 IAT SENSOR .........................................135
Component Description ........................................135
On Board Diagnosis Logic ....................................135
DTC Confirmation Procedure ................................135
Diagnosis Procedure .............................................136
Component Inspection ..........................................136
P0128 THERMOSTAT FUNCTION ..................138
On Board Diagnosis Logic ................................... .138
DTC Confirmation Procedure ................................138
Diagnosis Procedure .............................................140
Component Inspection ..........................................140
P0130, P0150 A/F SENSOR 1 .........................141
Component Description ....................................... .141
On Board Diagnosis Logic ....................................141
DTC Confirmation Procedure ................................141
Overall Function Check .........................................142
Diagnosis Procedure .............................................142
P0131, P0151 A/F SENSOR 1 .........................145
Component Description ....................................... .145
On Board Diagnosis Logic ....................................145
DTC Confirmation Procedure ................................145
Diagnosis Procedure .............................................146
P0132, P0152 A/F SENSOR 1 .........................149
Component Description ....................................... .149
On Board Diagnosis Logic ....................................149
DTC Confirmation Procedure ................................149
Diagnosis Procedure .............................................150
P0133, P0153 A/F SENSOR 1 .........................153
Component Description ....................................... .153
On Board Diagnosis Logic ....................................153
DTC Confirmation Procedure ................................153
Diagnosis Procedure .............................................154
P0137, P0157 HO2S2 .......................................159
Component Description ....................................... .159
On Board Diagnosis Logic ....................................159
DTC Confirmation Procedure ................................159
Overall Function Check .........................................160
Revision: March 2010 2008 QX56

Page 1302 of 4083

INFINITI QX56 2008 Factory Service Manual EC-3
C
DE
F
G H
I
J
K L
M
EC A
N
O P
Diagnosis Procedure ...........................................
..
160
Component Inspection ..........................................162
P0138, P0158 HO2S2 ...

EC-3
C
DE
F
G H
I
J
K L
M
EC A
N
O P
Diagnosis Procedure ...........................................
..
160
Component Inspection ..........................................162
P0138, P0158 HO2S2 ......................................164
Component Description ....................................... ..164
On Board Diagnosis Logic ....................................164
DTC Confirmation Procedure ................................164
Overall Function Check .........................................165
Diagnosis Procedure .............................................166
Component Inspection ..........................................169
P0139, P0159 HO2S2 ......................................171
Component Description ....................................... ..171
On Board Diagnosis Logic ....................................171
DTC Confirmation Procedure ................................171
Overall Function Check .........................................172
Diagnosis Procedure .............................................172
Component Inspection ..........................................174
P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION .......................................................
176
On Board Diagnosis Logic .................................. ..176
DTC Confirmation Procedure ................................176
Diagnosis Procedure .............................................179
P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION .......................................................
182
On Board Diagnosis Logic .................................. ..182
DTC Confirmation Procedure ................................182
Diagnosis Procedure .............................................185
P0181 FTT SENSOR ........................................188
Component Description ....................................... ..188
On Board Diagnosis Logic ....................................188
DTC Confirmation Procedure ................................188
Diagnosis Procedure .............................................189
Component Inspection ..........................................190
P0182, P0183 FTT SENSOR ...........................191
Component Description ....................................... ..191
On Board Diagnosis Logic ....................................191
DTC Confirmation Procedure ................................191
Diagnosis Procedure .............................................191
Component Inspection ..........................................193
P0222, P0223 APP SENSOR ...........................194
Component Description .........................................194
On Board Diagnosis Logic ....................................194
DTC Confirmation Procedure ................................194
Diagnosis Procedure .............................................194
Component Inspection ..........................................197
P0300, P0301, P0302, P0303, P0304, P0305,
P0306, P0307, P0308 MISFIRE .......................
198
On Board Diagnosis Logic .................................. ..198
DTC Confirmation Procedure ................................198
Diagnosis Procedure .............................................199
P0327, P0328, P0332, P0333 KS ....................204
Component Description ....................................... ..204
On Board Diagnosis Logic ....................................204
DTC Confirmation Procedure .............................. ..204
Diagnosis Procedure .............................................204
Component Inspection ...........................................206
P0335 CKP SENSOR (POS) ...........................207
Component Description .........................................207
On Board Diagnosis Logic .....................................207
DTC Confirmation Procedure ................................207
Diagnosis Procedure .............................................208
Component Inspection ...........................................209
P0340 CMP SENSOR (PHASE) .....................211
Component Description .........................................211
On Board Diagnosis Logic .....................................211
DTC Confirmation Procedure ................................211
Diagnosis Procedure .............................................212
Component Inspection ...........................................213
P0420, P0430 THREE WAY CATALYST
FUNCTION ......................................................
215
On Board Diagnosis Logic ................................... ..215
DTC Confirmation Procedure ................................215
Overall Function Check .........................................216
Diagnosis Procedure .............................................216
P0441 EVAP CONTROL SYSTEM .................219
System Description ................................................219
On Board Diagnosis Logic .....................................219
DTC Confirmation Procedure ................................219
Overall Function Check .........................................220
Diagnosis Procedure .............................................220
P0442 EVAP CONTROL SYSTEM .................224
On Board Diagnosis Logic .....................................224
DTC Confirmation Procedure ................................224
Diagnosis Procedure .............................................225
Component Inspection ...........................................230
P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ......................
231
Description .............................................................231
On Board Diagnosis Logic .....................................231
DTC Confirmation Procedure ................................231
Diagnosis Procedure .............................................232
Component Inspection ...........................................234
P0444, P0445 EVAP CANISTER PURGE
VOLUME CONTROL SOLENOID VALVE ......
236
Description .............................................................236
On Board Diagnosis Logic .....................................236
DTC Confirmation Procedure ................................237
Diagnosis Procedure .............................................237
Component Inspection ...........................................238
P0447 EVAP CANISTER VENT CONTROL
VALVE .............................................................
239
Component Description .........................................239
On Board Diagnosis Logic .....................................239
DTC Confirmation Procedure ................................239
Diagnosis Procedure .............................................239
Revision: March 2010 2008 QX56

Page 1303 of 4083

INFINITI QX56 2008 Factory Service Manual EC-4
Component Inspection ...........................................241
P0448 EVAP CANISTER VENT CONTROL
VALVE .............................................................
243
Component Description

EC-4
Component Inspection ...........................................241
P0448 EVAP CANISTER VENT CONTROL
VALVE .............................................................
243
Component Description ....................................... ..243
On Board Diagnosis Logic .....................................243
DTC Confirmation Procedure ................................243
Diagnosis Procedure .............................................244
Component Inspection ...........................................245
P0451 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ...............................................
247
Component Description ....................................... ..247
On Board Diagnosis Logic .....................................247
DTC Confirmation Procedure ................................247
Diagnosis Procedure .............................................247
Component Inspection ...........................................248
P0452 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ...............................................
250
Component Description ....................................... ..250
On Board Diagnosis Logic .....................................250
DTC Confirmation Procedure ................................250
Diagnosis Procedure .............................................251
Component Inspection ...........................................253
P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ...............................................
254
Component Description ....................................... ..254
On Board Diagnosis Logic .....................................254
DTC Confirmation Procedure ................................254
Diagnosis Procedure .............................................255
Component Inspection ...........................................258
P0455 EVAP CONTROL SYSTEM ..................259
On Board Diagnosis Logic ................................... ..259
DTC Confirmation Procedure ................................259
Diagnosis Procedure .............................................260
Component Inspection ...........................................264
P0456 EVAP CONTROL SYSTEM ..................266
On Board Diagnosis Logic ................................... ..266
DTC Confirmation Procedure ................................267
Overall Function Check .........................................267
Diagnosis Procedure .............................................268
Component Inspection ...........................................272
P0460 FUEL LEVEL SENSOR ........................274
Component Description ....................................... ..274
On Board Diagnosis Logic .....................................274
DTC Confirmation Procedure ................................274
Diagnosis Procedure .............................................274
P0461 FUEL LEVEL SENSOR ........................276
Component Description ....................................... ..276
On Board Diagnosis Logic .....................................276
Overall Function Check .........................................276
Diagnosis Procedure .............................................277
P0462, P0463 FUEL LEVEL SENSOR ...........278
Component Description ....................................... ..278
On Board Diagnosis Logic ................................... .278
DTC Confirmation Procedure ................................278
Diagnosis Procedure .............................................278
P0500 VSS ........................................................280
Description ........................................................... .280
On Board Diagnosis Logic ....................................280
DTC Confirmation Procedure ................................280
Overall Function Check .........................................281
Diagnosis Procedure .............................................281
P0506 ISC SYSTEM .........................................282
Description ........................................................... .282
On Board Diagnosis Logic ....................................282
DTC Confirmation Procedure ................................282
Diagnosis Procedure .............................................282
P0507 ISC SYSTEM .........................................284
Description ........................................................... .284
On Board Diagnosis Logic ....................................284
DTC Confirmation Procedure ................................284
Diagnosis Procedure .............................................284
P0550 PSP SENSOR .......................................286
Component Description ....................................... .286
On Board Diagnosis Logic ....................................286
DTC Confirmation Procedure ................................286
Diagnosis Procedure .............................................286
Component Inspection ..........................................288
P0603 ECM POWER SUPPLY .........................289
Description ........................................................... .289
DTC Logic .............................................................289
Diagnosis Procedure .............................................289
P0605 ECM .......................................................291
Component Description ....................................... .291
On Board Diagnosis Logic ....................................291
DTC Confirmation Procedure ................................291
Diagnosis Procedure .............................................292
P0643 SENSOR POWER SUPPLY ..................293
On Board Diagnosis Logic ....................................293
DTC Confirmation Procedure ................................293
Diagnosis Procedure .............................................293
P0850 PNP SWITCH ........................................296
Component Description ........................................296
On Board Diagnosis Logic ....................................296
DTC Confirmation Procedure ................................296
Overall Function Check .........................................296
Diagnosis Procedure .............................................297
P1140, P1145 IVT CONTROL POSITION
SENSOR ...........................................................
299
Component Description ....................................... .299
On Board Diagnosis Logic ....................................299
DTC Confirmation Procedure ................................299
Diagnosis Procedure .............................................299
Component Inspection ..........................................302
Revision: March 2010 2008 QX56

Page 1304 of 4083

INFINITI QX56 2008 Factory Service Manual EC-5
C
DE
F
G H
I
J
K L
M
EC A
N
O P
P1148, P1168 CLOSED LOOP CONTROL ... ..303
On Board Diagnosis Logic .................................. ..303
P1211 TCS CONTROL UNIT ...........................3

EC-5
C
DE
F
G H
I
J
K L
M
EC A
N
O P
P1148, P1168 CLOSED LOOP CONTROL ... ..303
On Board Diagnosis Logic .................................. ..303
P1211 TCS CONTROL UNIT ...........................304
Description .......................................................... ..304
On Board Diagnosis Logic ....................................304
DTC Confirmation Procedure ................................304
Diagnosis Procedure .............................................304
P1212 TCS COMMUNICATION LINE ..............305
Description .......................................................... ..305
On Board Diagnosis Logic ....................................305
DTC Confirmation Procedure ................................305
Diagnosis Procedure .............................................305
P1217 ENGINE OVER TEMPERATURE .........306
On Board Diagnosis Logic .................................. ..306
Overall Function Check .........................................306
Diagnosis Procedure .............................................307
Main 13 Causes of Overheating ............................308
P1225 TP SENSOR ..........................................310
Component Description ....................................... ..310
On Board Diagnosis Logic ....................................310
DTC Confirmation Procedure ................................310
Diagnosis Procedure .............................................310
P1226 TP SENSOR ..........................................312
Component Description ....................................... ..312
On Board Diagnosis Logic ....................................312
DTC Confirmation Procedure ................................312
Diagnosis Procedure .............................................312
P1421 COLD START CONTROL .....................314
Description .......................................................... ..314
On Board Diagnosis Logic ....................................314
DTC Confirmation Procedure ................................314
Diagnosis Procedure .............................................314
P1550 BATTERY CURRENT SENSOR ...........316
Component Description ....................................... ..316
On Board Diagnosis Logic ....................................316
DTC Confirmation Procedure ................................316
Diagnosis Procedure .............................................316
Component Inspection ..........................................318
P1551, P1552 BATTERY CURRENT SEN-
SOR ..................................................................
320
Component Description ....................................... ..320
On Board Diagnosis Logic ....................................320
DTC Confirmation Procedure ................................320
Diagnosis Procedure .............................................320
Component Inspection ..........................................322
P1553 BATTERY CURRENT SENSOR ...........324
Component Description ....................................... ..324
On Board Diagnosis Logic ....................................324
DTC Confirmation Procedure ................................324
Diagnosis Procedure .............................................324
Component Inspection ..........................................326
P1554 BATTERY CURRENT SENSOR ..........328
Component Description ....................................... ..328
On Board Diagnosis Logic .....................................328
Overall Function Check .........................................328
Diagnosis Procedure .............................................329
Component Inspection ...........................................330
P1564 ICC STEERING SWITCH .....................332
Component Description .........................................332
On Board Diagnosis Logic .....................................332
DTC Confirmation Procedure ................................332
Diagnosis Procedure .............................................332
Component Inspection ...........................................335
P1564 ASCD STEERING SWITCH .................336
Component Description .........................................336
On Board Diagnosis Logic .....................................336
DTC Confirmation Procedure ................................336
Diagnosis Procedure .............................................336
Component Inspection ...........................................338
P1568 ICC FUNCTION ....................................340
On Board Diagnosis Logic .....................................340
DTC Confirmation Procedure ................................340
Diagnosis Procedure .............................................340
P1572 ICC BRAKE SWITCH ..........................341
Component Description .........................................341
On Board Diagnosis Logic .....................................341
DTC Confirmation Procedure ................................341
Diagnosis Procedure .............................................342
Component Inspection ...........................................346
P1572 ASCD BRAKE SWITCH ......................347
Component Description .........................................347
On Board Diagnosis Logic .....................................347
DTC Confirmation Procedure ................................347
Diagnosis Procedure .............................................348
Component Inspection ...........................................351
P1574 ICC VEHICLE SPEED SENSOR .........352
Component Description .........................................352
On Board Diagnosis Logic .....................................352
DTC Confirmation Procedure ................................352
Diagnosis Procedure .............................................352
P1574 ASCD VEHICLE SPEED SENSOR .....354
Component Description .........................................354
On Board Diagnosis Logic .....................................354
DTC Confirmation Procedure ................................354
Diagnosis Procedure .............................................354
P1805 BRAKE SWITCH .................................356
Description .............................................................356
On Board Diagnosis Logic .....................................356
DTC Confirmation Procedure ................................356
Diagnosis Procedure .............................................356
Component Inspection ...........................................358
P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY ....................................................
359
Revision: March 2010 2008 QX56

Load next 8 pages

Page: < prev 1-10 ... 1265-1272 1273-1280 1281-1288 1289-1296 1297-1304 1305-1312 1313-1320 1321-1328 1329-1336 ... 4088 next >

jump start fuses auxiliary battery trunk release oil level gas tank size