INFINITI QX56 2010 Factory Service Manual

DOOR MIRROR REMOTE CONTROL SWITCHADP-177
< ON-VEHICLE REPAIR >
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DOOR MIRROR REMOTE CONTROL SWITCH
Removal and InstallationINFOID:0000000005147595
The door mirror remote control switch is part of the power window switch assembly. Refer to INT-11, "Removal
and Installation" for removal and installation of door mirror remote control switch.
Revision: April 20092010 QX56

ADP-178
< ON-VEHICLE REPAIR >
PEDAL ADJUSTING MOTOR
PEDAL ADJUSTING MOTOR
Removal and InstallationINFOID:0000000005147596
Refer to ACC-4, "Removal and Installation" for accelerator pedal and BR-19, "Removal and Installation" for
brake pedal when removing pedal adjusting motors.
Revision: April 20092010 QX56

TILT SWITCHADP-179
< ON-VEHICLE REPAIR >
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TILT SWITCH
Removal and InstallationINFOID:0000000005147597
REMOVAL
1. Disconnect battery negative terminal.
2. Remove the instrument lower panel LH. Refer to IP-11, "
Exploded View".
3. Remove steering column cover lower. Refer to IP-11, "
Exploded View".
4. Disconnect tilt switch electrical connector.
5. Remove tilt switch from lower column cover.
INSTALLATION
Installation is in the reverse order of removal.
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AP-1
BODY INTERIOR
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SECTION AP
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CONTENTS
ADJUSTABLE PEDAL
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... .....
2
ADJUSTABLE PEDAL SYSTEM .......................4
Adjustable Pedal .......................................................4
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< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005243054
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:0000000005246406
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.
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PRECAUTIONSAP-3
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5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Revision: April 20092010 QX56

AP-4
< SERVICE INFORMATION >
ADJUSTABLE PEDAL SYSTEM
ADJUSTABLE PEDAL SYSTEM
Adjustable PedalINFOID:0000000005147598
For adjustable pedal information, refer to ADP-12, "AUTOMATIC DRIVE POSITIONER SYSTEM : System
Description".
Revision: April 20092010 QX56

AV
AV-1
DRIVER INFORMATION & MULTIMEDIA
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CONTENTS
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 ......................................16
Component Description ...........................................17
REAR VIEW MONITOR SYSTEM ......................18
System Diagram .................................................. ....18
System Description .................................................18
Component Parts Location ......................................19
Component Description ...........................................20
DVD PLAYER .....................................................21
System Diagram .................................................. ....21
System Description .................................................21
Component Parts Location ......................................22
Component Description ...........................................22
HANDS-FREE PHONE SYSTEM ......................24
System Diagram .................................................. ....24
System Description ..................................................24
Component Parts Location ......................................25
Component Description ...........................................26
DIAGNOSIS SYSTEM (AV CONTROL UNIT) ...27
AV CONTROL UNIT .............................................. ....27
AV CONTROL UNIT : Diagnosis Description ..........27
AV CONTROL UNIT : CONS ULT-III Function .........38
A/C AND AV SWITCH ASSEMBLY ...................... ....40
A/C AND AV SWITCH ASSEMBLY : Component
Function Check ........................................................
40
COMPONENT DIAGNOSIS .........................41
U1000 CAN COMM CIRCUIT ...........................41
Description ........................................................... ....41
DTC Logic ................................................................41
Diagnosis Procedure ..............................................41
U1010 CONTROL UNIT (CAN) .........................42
Description ...............................................................42
DTC Logic ................................................................42
Diagnosis Procedure ...............................................42
U1200 AV CONTROL UNIT ..............................43
Description ...............................................................43
DTC Logic ................................................................43
U1201 AV CONTROL UNIT ..............................44
Description ...............................................................44
DTC Logic ................................................................44
U1204 GPS COMM ...........................................45
Description ...............................................................45
DTC Logic ................................................................45
U1205 GPS ROM ..............................................46
Description ...............................................................46
DTC Logic ................................................................46
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AV-2
U1206 GPS RAM ...............................................47
Description ........................................................... ...47
DTC Logic ...............................................................47
U1207 GPS RTC ................................................48
Description ........................................................... ...48
DTC Logic ...............................................................48
U1216 AV CONTROL UNIT ...............................49
Description ........................................................... ...49
DTC Logic ...............................................................49
U1217 AV CONTROL UNIT ...............................50
Description ........................................................... ...50
DTC Logic ...............................................................50
U1218 AV CONTROL UNIT ...............................51
Description ........................................................... ...51
DTC Logic ...............................................................51
U1219 AV CONTROL UNIT ...............................52
Description ........................................................... ...52
DTC Logic ...............................................................52
U121A AV CONTROL UNIT ..............................53
Description ........................................................... ...53
DTC Logic ...............................................................53
U121B AV CONTROL UNIT ..............................54
Description ........................................................... ...54
DTC Logic ...............................................................54
U121C AV CONTROL UNIT ..............................55
Description ........................................................... ...55
DTC Logic ...............................................................55
U121D AV CONTROL UNIT ..............................56
Description ........................................................... ...56
DTC Logic ...............................................................56
U121E AV CONTROL UNIT ..............................57
Description ........................................................... ...57
DTC Logic ...............................................................57
U121F AV CONTROL UNIT ..............................58
Description ........................................................... ...58
DTC Logic ...............................................................58
Diagnosis Procedure ..............................................58
U1220 AV CONTROL UNIT ...............................59
Description ........................................................... ...59
DTC Logic ...............................................................59
U1243 DISPLAY UNIT .......................................60
Description ........................................................... ...60
DTC Logic ...............................................................60
Diagnosis Procedure ..............................................60
U1244 GPS ANTENNA ......................................62
Description ........................................................... ...62
DTC Logic ...............................................................62
Diagnosis Procedure ..............................................62
U1250 CAMERA CONTROL UNIT ....................63
Description ........................................................... ...63
DTC Logic ...............................................................63
Diagnosis Procedure ...............................................63
U1258 SATELLITE RADIO ANTENNA .............65
Description ........................................................... ...65
DTC Logic ...............................................................65
Diagnosis Procedure ...............................................65
U1300 AV COMM CIRCUIT ............................ ...66
Description ........................................................... ...66
U1310 AV CONTROL UNIT ..............................67
Description ........................................................... ...67
DTC Logic ...............................................................67
POWER SUPPLY AND GROUND CIRCUIT .....68
AV CONTROL UNIT ............................................... ...68
AV CONTROL UNIT : Diagnosis Procedure ...........68
DISPLAY UNIT ....................................................... ...69
DISPLAY UNIT : Diagnosis Procedure ...................69
A/C AND AV SWITCH ASSEMBLY ..........................70
A/C AND AV SWITCH ASSEMBLY : Diagnosis
Procedure ............................................................ ...
70
BOSE SPEAKER AMP .............................................70
BOSE SPEAKER AMP : Diagnosis Procedure .... ...70
WOOFER ................................................................ ...71
WOOFER : Diagnosis Procedure ...........................71
REAR VIEW CAMERA CONTROL UNIT ............... ...72
REAR VIEW CAMERA CONTROL UNIT : Diagno-
sis Procedure ..........................................................
72
REAR VIEW CAMERA ........................................... ...73
REAR VIEW CAMERA : Diagnosis Procedure .......73
DVD PLAYER ......................................................... ...74
DVD PLAYER : Diagnosis Procedure .....................74
VIDEO MONITOR ................................................... ...75
VIDEO MONITOR : Diagnosis Procedure ..............75
MICROPHONE ....................................................... ...76
MICROPHONE : Diagnosis Procedure ...................76
RGB (R: RED) SIGNAL CIRCUIT .....................78
Description ........................................................... ...78
Diagnosis Procedure ...............................................78
RGB (G: GREEN) SIGNAL CIRCUIT ................79
Description ........................................................... ...79
Diagnosis Procedure ...............................................79
RGB (B: BLUE) SIGNAL CIRCUIT ...................80
Description ........................................................... ...80
Diagnosis Procedure ...............................................80
RGB SYNCHRONIZING SIGNAL CIRCUIT ......81
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AV
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Description ..........................................................
....
81
Diagnosis Procedure ...............................................81
RGB AREA (YS) SIGNAL CIRCUIT ..................82
Description .......................................................... ....82
Diagnosis Procedure ...............................................82
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT ................................................. ....
83
Description .......................................................... ....83
Diagnosis Procedure ...............................................83
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT ......................................................... ....
84
Description .......................................................... ....84
Diagnosis Procedure ...............................................84
FRONT DOOR SPEAKER .................................85
Description .......................................................... ....85
Diagnosis Procedure ...............................................85
FRONT TWEETER .............................................88
Description .......................................................... ....88
Diagnosis Procedure ...............................................88
CENTER SPEAKER ...........................................91
Description .......................................................... ....91
Diagnosis Procedure ...............................................91
REAR DOOR SPEAKER ....................................93
Description .......................................................... ....93
Diagnosis Procedure ...............................................93
REAR DOOR TWEETER ...................................96
Description .......................................................... ....96
Diagnosis Procedure ...............................................96
BACK DOOR SPEAKER ...................................99
Description .......................................................... ....99
Diagnosis Procedure ...............................................99
SUBWOOFER ..................................................102
Description .......................................................... ..102
Diagnosis Procedure .............................................102
AMP ON SIGNAL CIRCUIT .............................105
Description .......................................................... ..105
Diagnosis Procedure .............................................105
STEERING SWITCH ........................................106
Description .......................................................... ..106
Diagnosis Procedure .............................................106
MICROPHONE SIGNAL CIRCUIT ...................108
Description .......................................................... ..108
Diagnosis Procedure .............................................108
ECU DIAGNOSIS .......................................110
AV CONTROL UNIT ....................................... ..110
Reference Value ................................................. ..110
Wiring Diagram .....................................................116
DTC Index ........................................................... ..144
DISPLAY UNIT ................................................146
Reference Value ....................................................146
BOSE SPEAKER AMP ...................................149
Reference Value ....................................................149
REAR VIEW CAMERA CONTROL UNIT .......152
Reference Value ....................................................152
DVD PLAYER ..................................................154
Reference Value ....................................................154
SYMPTOM DIAGNOSIS ............................156
MULTI AV SYSTEM ........................................156
Symptom Table ................................................... ..156
NORMAL OPERATING CONDITION .............158
Description .............................................................158
PRECAUTION ............................................166
PRECAUTIONS ...............................................166
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
166
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
166
PREPARATION .........................................168
PREPARATION ...............................................168
Commercial Service Tools ................................... ..168
ON-VEHICLE REPAIR ...............................169
AV CONTROL UNIT ........................................169
Removal and Installation ..................................... ..169
DISPLAY UNIT ................................................171
Removal and Installation .......................................171
FRONT TWEETER ..........................................172
Removal and Installation .......................................172
CENTER SPEAKER ........................................173
Removal and Installation .......................................173
FRONT DOOR SPEAKER ..............................174
Removal and Installation .......................................174
REAR DOOR SPEAKER ................................175
Removal and Installation .......................................175
BACK DOOR SPEAKER ................................176
Removal and Installation .......................................176
SUBWOOFER .................................................177
Removal and Installation .......................................177
DVD PLAYER ..................................................178
Removal and Installation .......................................178
Revision: April 20092010 QX56