2008 INFINITI QX56 Factory Service Manual

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Page 177 of 4083

INFINITI QX56 2008 Factory Service Manual AUTOMATIC DRIVE POSITIONERADP-163
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
AUTOMATIC DRIVE POSITIONER
Removal and InstallationINFOID:0000000001536870
Refe

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INFINITI QX56 2008 Factory Service Manual AP-1
BODY INTERIOR
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CONTENTS
ADJUSTABLE PEDAL
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .

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INFINITI QX56 2008 Factory Service Manual AP-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004857556
The Supplem

AP-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004857556
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004857557
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

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5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cabl

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INFINITI QX56 2008 Factory Service Manual AP-4
< SERVICE INFORMATION >
ADJUSTABLE PEDAL SYSTEM
ADJUSTABLE PEDAL SYSTEM
Adjustable PedalINFOID:0000000001569467
For adjustable pedal information, refer to ADP-10, "AUTOMATIC DRIVE POSITIONER SYST

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INFINITI QX56 2008 Factory Service Manual AV
AV-1
DRIVER INFORMATION & MULTIMEDIA
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AUDIO, VISUAL & NAVIGATION SYSTEM
AUDIO SYSTEM
BASIC INSPECTION ....... .............................
5
DIAGNO

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DRIVER INFORMATION & MULTIMEDIA
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AUDIO, VISUAL & NAVIGATION SYSTEM
AUDIO SYSTEM
BASIC INSPECTION ....... .............................
5
DIAGNOSIS AND REPAIR WORKFLOW ..... .....5
Work Flow ........................................................... ......5
INSPECTION AND ADJUSTMENT .....................7
REAR VIEW MONITOR GUIDING LINE ADJUST-
MENT ..................................................................... ......
7
REAR VIEW MONITOR GUIDING LINE ADJUST-
MENT : Description ...................................................
7
REAR VIEW MONITOR GUIDING LINE ADJUST-
MENT : Special Repair Requirement ........................
7
FUNCTION DIAGNOSIS ...............................9
AUDIO SYSTEM ............................................. .....9
System Diagram .................................................. ......9
System Description ...................................................9
Component Parts Location ......................................11
Component Description ...........................................12
NAVIGATION SYSTEM ......................................13
System Diagram .................................................. ....13
System Description .................................................13
Component Parts Location ......................................15
Component Description ...........................................15
REAR VIEW MONITOR SYSTEM ......................16
System Diagram .................................................. ....16
System Description .................................................16
Component Parts Location ......................................16
Component Description ...........................................16
DVD PLAYER .....................................................17
System Diagram .................................................. ....17
System Description .................................................17
Component Parts Location ......................................18
Component Description ...........................................18
HANDS-FREE PHONE SYSTEM ......................20
System Diagram .................................................. ....20
System Description ..................................................20
Component Parts Location ......................................20
Component Description ...........................................20
DIAGNOSIS SYSTEM (AV CONTROL UNIT) ...22
AV CONTROL UNIT .............................................. ....22
AV CONTROL UNIT : Diagnosis Description ..........22
AV CONTROL UNIT : CONS ULT-III Function .........33
A/C AND AV SWITCH ASSEMBLY ...................... ....35
A/C AND AV SWITCH ASSEMBLY : Component
Function Check ........................................................
35
COMPONENT DIAGNOSIS .........................36
U1000 CAN COMM CIRCUIT ...........................36
Description ........................................................... ....36
DTC Logic ................................................................36
Diagnosis Procedure ..............................................36
U1010 CONTROL UNIT (CAN) .........................37
Description ...............................................................37
DTC Logic ................................................................37
Diagnosis Procedure ...............................................37
U1200 AV CONTROL UNIT ..............................38
Description ...............................................................38
DTC Logic ................................................................38
U1201 AV CONTROL UNIT ..............................39
Description ...............................................................39
DTC Logic ................................................................39
U1204 GPS COMM ...........................................40
Description ...............................................................40
DTC Logic ................................................................40
U1205 GPS ROM ..............................................41
Description ...............................................................41
DTC Logic ................................................................41
Revision: March 2010 2008 QX56

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INFINITI QX56 2008 Factory Service Manual AV-2
U1206 GPS RAM ...............................................42
Description ........................................................... ...42
DTC Logic ..........................................

AV-2
U1206 GPS RAM ...............................................42
Description ........................................................... ...42
DTC Logic ...............................................................42
U1207 GPS RTC ................................................43
Description ........................................................... ...43
DTC Logic ...............................................................43
U1216 AV CONTROL UNIT ...............................44
Description ........................................................... ...44
DTC Logic ...............................................................44
U1217 AV CONTROL UNIT ...............................45
Description ........................................................... ...45
DTC Logic ...............................................................45
U1218 AV CONTROL UNIT ...............................46
Description ........................................................... ...46
DTC Logic ...............................................................46
U1219 AV CONTROL UNIT ...............................47
Description ........................................................... ...47
DTC Logic ...............................................................47
U121A AV CONTROL UNIT ..............................48
Description ........................................................... ...48
DTC Logic ...............................................................48
U121B AV CONTROL UNIT ..............................49
Description ........................................................... ...49
DTC Logic ...............................................................49
U121C AV CONTROL UNIT ..............................50
Description ........................................................... ...50
DTC Logic ...............................................................50
U121D AV CONTROL UNIT ..............................51
Description ........................................................... ...51
DTC Logic ...............................................................51
U121E AV CONTROL UNIT ..............................52
Description ........................................................... ...52
DTC Logic ...............................................................52
U121F AV CONTROL UNIT ..............................53
Description ........................................................... ...53
DTC Logic ...............................................................53
Diagnosis Procedure ..............................................53
U1220 AV CONTROL UNIT ...............................54
Description ........................................................... ...54
DTC Logic ...............................................................54
U1243 DISPLAY UNIT .......................................55
Description ........................................................... ...55
DTC Logic ...............................................................55
Diagnosis Procedure ..............................................55
U1244 GPS ANTENNA ......................................57
Description ........................................................... ...57
DTC Logic ...............................................................57
Diagnosis Procedure ..............................................57
U1250 CAMERA CONTROL UNIT ....................58
Description ........................................................... ...58
DTC Logic ...............................................................58
Diagnosis Procedure ...............................................58
U1258 SATELLITE RADIO ANTENNA .............60
Description ........................................................... ...60
DTC Logic ...............................................................60
Diagnosis Procedure ...............................................60
U1300 AV COMM CIRCUIT ............................ ...61
Description ........................................................... ...61
U1310 AV CONTROL UNIT ..............................62
Description ........................................................... ...62
DTC Logic ...............................................................62
POWER SUPPLY AND GROUND CIRCUIT .....63
AV CONTROL UNIT ............................................... ...63
AV CONTROL UNIT : Diagnosis Procedure ...........63
DISPLAY UNIT ....................................................... ...64
DISPLAY UNIT : Diagnosis Procedure ...................64
A/C AND AV SWITCH ASSEMBLY ..........................65
A/C AND AV SWITCH ASSEMBLY : Diagnosis
Procedure ............................................................ ...
65
BOSE SPEAKER AMP .............................................66
BOSE SPEAKER AMP : Diagnosis Procedure .... ...66
WOOFER ................................................................ ...66
WOOFER : Diagnosis Procedure ...........................66
REAR VIEW CAMERA CONTROL UNIT ............... ...67
REAR VIEW CAMERA CONTROL UNIT : Diagno-
sis Procedure ..........................................................
67
REAR VIEW CAMERA ........................................... ...68
REAR VIEW CAMERA : Diagnosis Procedure .......68
DVD PLAYER ......................................................... ...69
DVD PLAYER : Diagnosis Procedure .....................69
VIDEO MONITOR ................................................... ...70
VIDEO MONITOR : Diagnosis Procedure ..............70
MICROPHONE ....................................................... ...71
MICROPHONE : Diagnosis Procedure ...................71
RGB (R: RED) SIGNAL CIRCUIT .....................73
Description ........................................................... ...73
Diagnosis Procedure ...............................................73
RGB (G: GREEN) SIGNAL CIRCUIT ................74
Description ........................................................... ...74
Diagnosis Procedure ...............................................74
RGB (B: BLUE) SIGNAL CIRCUIT ...................75
Description ........................................................... ...75
Diagnosis Procedure ...............................................75
RGB SYNCHRONIZING SIGNAL CIRCUIT ......76
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INFINITI QX56 2008 Factory Service Manual AV
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Description ..........................................................
....
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Diagnosis Procedure ...............................................76
RGB AREA (YS)

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Description ..........................................................
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Diagnosis Procedure ...............................................76
RGB AREA (YS) SIGNAL CIRCUIT ..................77
Description .......................................................... ....77
Diagnosis Procedure ...............................................77
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT ................................................. ....
78
Description .......................................................... ....78
Diagnosis Procedure ...............................................78
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT ......................................................... ....
79
Description .......................................................... ....79
Diagnosis Procedure ...............................................79
FRONT DOOR SPEAKER .................................80
Description .......................................................... ....80
Diagnosis Procedure ...............................................80
FRONT TWEETER .............................................83
Description .......................................................... ....83
Diagnosis Procedure ...............................................83
CENTER SPEAKER ...........................................86
Description .......................................................... ....86
Diagnosis Procedure ...............................................86
REAR DOOR SPEAKER ....................................88
Description .......................................................... ....88
Diagnosis Procedure ...............................................88
REAR DOOR TWEETER ...................................91
Description .......................................................... ....91
Diagnosis Procedure ...............................................91
BACK DOOR SPEAKER ...................................94
Description .......................................................... ....94
Diagnosis Procedure ...............................................94
SUBWOOFER ....................................................97
Description .......................................................... ....97
Diagnosis Procedure ...............................................97
AMP ON SIGNAL CIRCUIT .............................100
Description .......................................................... ..100
Diagnosis Procedure .............................................100
STEERING SWITCH ........................................101
Description .......................................................... ..101
Diagnosis Procedure .............................................101
MICROPHONE SIGNAL CIRCUIT ...................103
Description .......................................................... ..103
Diagnosis Procedure .............................................103
ECU DIAGNOSIS .......................................105
AV CONTROL UNIT ....................................... ..105
Reference Value ................................................. ..105
Wiring Diagram .....................................................111
DTC Index ........................................................... ..139
DISPLAY UNIT ................................................141
Reference Value ....................................................141
BOSE SPEAKER AMP ...................................144
Reference Value ....................................................144
REAR VIEW CAMERA CONTROL UNIT .......147
Reference Value ....................................................147
DVD PLAYER ..................................................149
Reference Value ....................................................149
SYMPTOM DIAGNOSIS ............................151
MULTI AV SYSTEM ........................................151
Symptom Table ................................................... ..151
NORMAL OPERATING CONDITION .............153
Description .............................................................153
PRECAUTION ............................................161
PRECAUTIONS ...............................................161
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
161
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
161
PREPARATION .........................................163
PREPARATION ...............................................163
Commercial Service Tools ................................... ..163
ON-VEHICLE REPAIR ...............................164
AV CONTROL UNIT ........................................164
Removal and Installation ..................................... ..164
DISPLAY UNIT ................................................166
Removal and Installation .......................................166
FRONT TWEETER ..........................................167
Removal and Installation .......................................167
CENTER SPEAKER ........................................168
Removal and Installation .......................................168
FRONT DOOR SPEAKER ..............................169
Removal and Installation .......................................169
REAR DOOR SPEAKER ................................170
Removal and Installation .......................................170
BACK DOOR SPEAKER ................................171
Removal and Installation .......................................171
SUBWOOFER .................................................172
Removal and Installation .......................................172
DVD PLAYER ..................................................173
Removal and Installation .......................................173
Revision: March 2010 2008 QX56

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