2011 INFINITI QX56 Factory Service Manual

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Page 961 of 5598

INFINITI QX56 2011 Factory Service Manual
WATER PUMPCO-19
< REMOVAL AND INSTALLATION >
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11. Remove water pump. Refer to
CO-18, "Exploded View".
Engine coolant will leak from cylinder block, so have a recepta

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INFINITI QX56 2011 Factory Service Manual
CO-20
< REMOVAL AND INSTALLATION >
WATER INLET AND THERMOSTAT ASSEMBLY
WATER INLET AND THERMOSTAT ASSEMBLY
Exploded ViewINFOID:0000000006289672
Removal and InstallationINFOID:0000000006289673
REMOVAL

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INFINITI QX56 2011 Factory Service Manual
WATER INLET AND THERMOSTAT ASSEMBLYCO-21
< REMOVAL AND INSTALLATION >
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2. Remove front under cover with power tool. Refer to
EXT-25, "Exploded View".
3. Drain engine co

Page 964 of 5598

INFINITI QX56 2011 Factory Service Manual
CO-22
< REMOVAL AND INSTALLATION >
WATER INLET AND THERMOSTAT ASSEMBLY
Place a thread (A) so that it is caught in the valve of the thermostat.Immerse fully in a container filled with water. Heat wh

Page 965 of 5598

INFINITI QX56 2011 Factory Service Manual
SERVICE DATA AND SPECIFICATIONS (SDS)
CO-23
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Period

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INFINITI QX56 2011 Factory Service Manual
DAS-1
CRUISE CONTROL & DRIVER ASSISTANCE
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DAS
SECTION DAS
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CONTENTS
DRIVER ASSISTANCE SYSTEM
ADAS CONTROL UNIT
PRECAUTION ................ ..............................
12

DAS-1
CRUISE CONTROL & DRIVER ASSISTANCE
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DAS
SECTION DAS
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CONTENTS
DRIVER ASSISTANCE SYSTEM
ADAS CONTROL UNIT
PRECAUTION ................ ..............................
12
PRECAUTIONS .............................................. ....12
Precautions For Harness Repair ......................... ....12
SYSTEM DESCRIPTION .............................13
COMPONENT PARTS ................................... ....13
Component Parts Location .................................. ....13
Component Description ...........................................13
SYSTEM .............................................................14
System Description ............................................. ....14
Fail-safe ..................................................................18
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) ..................................................................
20
On Board Diagnosis Function ............................. ....20
CONSULT-III Function (ICC/ADAS) ........................21
ECU DIAGNOSIS INFORMATION ..............31
ADAS CONTROL UNIT .................................. ....31
Reference Value ................................................. ....31
Fail-safe ..................................................................36
DTC Inspection Priority Chart .................................37
DTC Index ...............................................................38
WIRING DIAGRAM ......................................42
DRIVER ASSISTANCE SYSTEMS ................ ....42
Wiring Diagram ................................................... ....42
DTC/CIRCUIT DIAGNOSIS .........................57
C1A00 CONTROL UNIT ................................. ....57
DTC Logic ........................................................... ....57
Diagnosis Procedure ...............................................57
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ............................
58
DTC Logic ............................................................ ....58
Diagnosis Procedure ...............................................58
U1000 CAN COMM CIRCUIT ...........................59
Description ...............................................................59
DTC Logic ................................................................59
Diagnosis Procedure ...............................................59
U1010 CONTROL UNIT (CAN) .........................60
Description ...............................................................60
DTC Logic ................................................................60
Diagnosis Procedure ...............................................60
U150F AV CAN 3 ..............................................61
DTC Logic ................................................................61
Diagnosis Procedure ...............................................61
POWER SUPPLY AND GROUND CIRCUIT ....62
Diagnosis Procedure ...............................................62
REMOVAL AND INSTALLATION ...............63
ADAS CONTROL UNIT ....................................63
Removal and Installation ..................................... ....63
DCA
PRECAUTION ............... ...............................
64
PRECAUTIONS .................................................64
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
64
Precautions For Harness Repair .............................64
DCA System Service ...............................................65
SYSTEM DESCRIPTION .............................66
COMPONENT PARTS ......................................66
Component Parts Location .................................. ....66
Component Description ...........................................67
SYSTEM ............................................................68
System Description .............................................. ....68
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
DAS-2
Fail-safe (ADAS Control Unit) .................................72
Fail-safe (ICC Sensor) ............................................72
OPERATION .............................................

DAS-2
Fail-safe (ADAS Control Unit) .................................72
Fail-safe (ICC Sensor) ............................................72
OPERATION ......................................................73
Switch Name and Function .................................. ...73
Menu Displayed by Pressing Each Switch .............73
HANDLING PRECAUTION ................................76
Precautions for Distance Control Assist .............. ...76
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) ............................................................... ...
78
On Board Diagnosis Function .............................. ...78
CONSULT-III Function (ICC/ADAS) .......................79
DIAGNOSIS SYSTEM (ICC SENSOR) ..............89
CONSULT-III Function (LASER) ............................89
DIAGNOSIS SYSTEM (ACCELERATOR
PEDAL ACTUATOR) ...................................... ...
91
CONSULT-III Function (ACCELERATOR PEDAL
ACT) .................................................................... ...
91
ECU DIAGNOSIS INFORMATION ..............93
ADAS CONTROL UNIT .................................. ...93
Reference Value .................................................. ...93
Fail-safe ..................................................................98
DTC Inspection Priority Chart .................................99
DTC Index .............................................................100
ICC SENSOR ...................................................104
Reference Value .................................................. ..104
Fail-safe .................................................................105
DTC Inspection Priority Chart ................................105
DTC Index .............................................................105
ACCELERATOR PEDAL ACTUATOR ...........107
Reference Value .................................................. ..107
DTC Inspection Priority Chart ................................108
DTC Index .............................................................108
WIRING DIAGRAM ....................................109
DRIVER ASSISTANCE SYSTEMS ................ .109
Wiring Diagram .................................................... ..109
BASIC INSPECTION ..................................124
DIAGNOSIS AND REPAIR WORK FLOW ..... .124
Work Flow ............................................................ ..124
ADDITIONAL SERVICE WHEN REPLACING
ICC SENSOR ...................................................
126
Description ........................................................... ..126
Work Procedure .....................................................126
ADDITIONAL SERVICE WHEN REPLACING
ACCELERATOR PEDAL ASSEMBLY ............
127
Description ........................................................... ..127
Work Procedure .....................................................127
ACTION TEST ..................................................128
Description ........................................................... .128
Work Procedure ....................................................128
DTC/CIRCUIT DIAGNOSIS .......................129
C1A00 CONTROL UNIT ................................. ..129
DTC Logic ............................................................ .129
Diagnosis Procedure .............................................129
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ...........................
130
DTC Logic ............................................................ .130
Diagnosis Procedure .............................................130
C1A03 VEHICLE SPEED SENSOR .................131
DTC Logic ............................................................ .131
Diagnosis Procedure .............................................131
C1A04 ABS/TCS/VDC SYSTEM ......................133
DTC Logic ............................................................ .133
Diagnosis Procedure .............................................133
C1A05 BRAKE SW/STOP LAMP SW ..............134
DTC Logic ............................................................ .134
Diagnosis Procedure .............................................134
Component Inspection (ICC Brake Switch) ..........137
Component Inspection (Stop Lamp Switch) ..........137
C1A06 OPERATION SW ..................................138
DTC Logic ............................................................ .138
Diagnosis Procedure .............................................138
Component Inspection ..........................................139
C1A12 LASER BEAM OFF CENTER ..............140
DTC Logic ............................................................ .140
Diagnosis Procedure .............................................140
C1A13 STOP LAMP RELAY ............................141
DTC Logic ............................................................ .141
Diagnosis Procedure .............................................141
Component Inspection ..........................................146
C1A14 ECM ......................................................147
DTC Logic ............................................................ .147
Diagnosis Procedure .............................................147
C1A15 GEAR POSITION .................................148
Description ........................................................... .148
DTC Logic .............................................................148
Diagnosis Procedure .............................................148
C1A16 RADAR STAIN ................................... ..150
DTC Logic ............................................................ .150
Diagnosis Procedure .............................................150
C1A17 ICC SENSOR ........................................151
DTC Logic ............................................................ .151
Diagnosis Procedure .............................................151
C1A18 LASER AIMING INCMP .......................152
DTC Logic ............................................................ .152
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
DAS-3
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DAS
N
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Diagnosis Procedure ...........................................
..
152
C1A21 UNIT HIGH TEMP ................................153
DTC Logic ...................

DAS-3
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DAS
N
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Diagnosis Procedure ...........................................
..
152
C1A21 UNIT HIGH TEMP ................................153
DTC Logic ........................................................... ..153
Diagnosis Procedure .............................................153
C1A24 NP RANGE ...........................................154
DTC Logic ........................................................... ..154
Diagnosis Procedure .............................................154
C1A26 ECD MODE MALFUNCTION ...............156
DTC Logic ........................................................... ..156
Diagnosis Procedure .............................................156
C1A27 ECD POWER SUPPLY CIRCUIT .........157
DTC Logic ........................................................... ..157
Diagnosis Procedure .............................................157
C1A2A ICC SENSOR POWER SUPPLY CIR-
CUIT ..................................................................
158
DTC Logic ........................................................... ..158
Diagnosis Procedure .............................................158
C1A33 CAN TRANSMISSION ERROR ...........159
DTC Logic ........................................................... ..159
Diagnosis Procedure .............................................159
C1A34 COMMAND ERROR .............................160
DTC Logic ........................................................... ..160
Diagnosis Procedure .............................................160
C1A35 ACCELERATOR PEDAL ACTUATOR ..161
DTC Logic ........................................................... ..161
Diagnosis Procedure .............................................161
C1A36 ACCELERATOR PEDAL ACTUATOR
CAN COMM ......................................................
162
DTC Logic ........................................................... ..162
Diagnosis Procedure .............................................162
C1A37 ACCELERATOR PEDAL ACTUATOR
CAN 2 ...............................................................
163
DTC Logic ........................................................... ..163
Diagnosis Procedure .............................................163
C1A38 ACCELERATOR PEDAL ACTUATOR
CAN 1 ...............................................................
164
DTC Logic ........................................................... ..164
Diagnosis Procedure .............................................164
C1A39 STEERING ANGLE SENSOR ..............165
DTC Logic ........................................................... ..165
Diagnosis Procedure .............................................165
C1F01 ACCELERATOR PEDAL ACTUATOR ..166
ADAS CONTROL UNIT ......................................... ..166
ADAS CONTROL UNIT : DTC Logic ....................166
ADAS CONTROL UNIT : Diagnosis Procedure ....166
ACCELERATOR PEDAL ACTUATOR ................. ..166
ACCELERATOR PEDAL ACTUATOR : DTC Log-
ic ............................................................................
166
ACCELERATOR PEDAL ACTUATOR : Diagnosis
Procedure ..............................................................
167
C1F02 ACCELERATOR PEDAL ACTUATOR .168
ADAS CONTROL UNIT ......................................... ..168
ADAS CONTROL UNIT : DTC Logic .....................168
ADAS CONTROL UNIT : Diagnosis Procedure ....168
ACCELERATOR PEDAL ACTUATOR .................. ..168
ACCELERATOR PEDAL ACTUATOR : DTC Log-
ic ............................................................................
168
ACCELERATOR PEDAL ACTUATOR : Diagnosis
Procedure ..............................................................
168
C1F03 ACCELERATOR PEDAL ACTUATOR .170
DTC Logic ............................................................ ..170
Diagnosis Procedure .............................................170
C1F05 ACCELERATOR PEDAL ACTUATOR
POWER SUPPLY CIRCUIT ............................
171
ADAS CONTROL UNIT ......................................... ..171
ADAS CONTROL UNIT : DTC Logic .....................171
ADAS CONTROL UNIT : Diagnosis Procedure ....171
ACCELERATOR PEDAL ACTUATOR .................. ..171
ACCELERATOR PEDAL ACTUATOR : DTC Log-
ic ............................................................................
171
ACCELERATOR PEDAL ACTUATOR : Diagnosis
Procedure ..............................................................
172
C1F06 CAN CIRCUIT2 ....................................173
DTC Logic ..............................................................173
Diagnosis Procedure .............................................173
C1F07 CAN CIRCUIT1 ....................................174
DTC Logic ..............................................................174
Diagnosis Procedure .............................................174
U0121 VDC CAN 2 ..........................................175
DTC Logic ............................................................ ..175
Diagnosis Procedure .............................................175
U0126 STRG SEN CAN 1 ...............................176
DTC Logic ..............................................................176
Diagnosis Procedure .............................................176
U0235 ICC SENSOR CAN 1 ...........................177
DTC Logic ............................................................ ..177
Diagnosis Procedure .............................................177
U0401 ECM CAN 1 .........................................178
DTC Logic ..............................................................178
Diagnosis Procedure .............................................178
U0402 TCM CAN 1 ..........................................179
DTC Logic ............................................................ ..179
Diagnosis Procedure .............................................179
U0415 VDC CAN 1 ..........................................180
Revision: 2010 May2011 QX56

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