2006 INFINITI QX56 audio

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QUICK REFERENCE INDEX
AGENERAL INFORMATIONGIGeneral Information
BENGINEEMEngine Mechanical
LUEngine Lubrication System
COEngine Cooling System
ECEngine Control System
FLFuel System
EXExhaust System
ACCAccelerator Control System
CTRANSMISSION/
TRANSAXLEATAutomatic Transmission
DDRIVELINE/AXLETFTransfer
PRPropeller Shaft
FFDFront Final Drive
RFDRear Final Drive
FAXFront Axle
RAXRear Axle
ESUSPENSIONFSUFront Suspension
RSURear Suspension
WTRoad Wheels & Tires
FBRAKESBRBrake System
PBParking Brake System
BRCBrake Control System
GSTEERINGPSPower Steering System
HRESTRAINTSSBSeat Belts
SRSSupplemental Restraint System (SRS)
IBODYBLBody, Lock & Security System
GWGlasses, Window System & Mirrors
RFRoof
EIExterior & Interior
IPInstrument Panel
SESeat
APAdjustable Pedal
JAIR CONDITIONERATCAutomatic Air Conditioner
KELECTRICALSCStarting & Charging System
LTLighting System
DIDriver Information System
WWWiper, Washer & Horn
BCSBody Control System
LANLAN System
AVAudio Visual, Navigation & Telephone System
ACSAuto Cruise Control System
PGPower Supply, Ground & Circuit Elements
LMAINTENANCEMAMaintenance
MINDEXIDXAlphabetical Index
Edition: July 2005
Revision: November 2009
Publication No. SM6E-1J60U2
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© 2009 NISSAN NORTH AMERICA, INC.
All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any
form, or by any means, electronic, mechanical, photo-copying, recording or otherwise, without the prior written permission
of Nissan North America, Inc.
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REMOVAL AND INSTALLATIONACS-59
[ICC]
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ACS
Revision: November 2009 2006 QX56
REMOVAL AND INSTALLATIONPFP:00000
ICC UnitEKS00BMV
ICC SensorEKS00BMW
CAUTION:
Perform the laser beam aiming procedure every time the ICC sensor is removed or installed. Refer to
ACS-12, "
LASER BEAM AIMING ADJUSTMENT" .
ICC Steering SwitchEKS00BMX
Replace ICC steering switch as switch kit assembly. Refer to AV- 5 9 , "STEERING WHEEL AUDIO CONTROL
SWITCHES" .
1. Rear inner side panel LH (shown
with finisher removed) 2. ICC unit harness connector 3. ICC unit
⇐ Vehicle front
WKIA4607E
1. ICC sensor bracket 2. ICC frame bracket3. ICC sensor
4. Frame side rail ⇐Vehicle front
WKIA4608E

AV-1
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYS-TEM
K ELECTRICAL
CONTENTS
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SECTION
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AV
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
PREPARATION ...................................................... ..... 5
Commercial Service Tool .................................... ..... 5
AUDIO .................................................................... ..... 6
Component Parts and Harness Connector Location ..... 6
System Description ............................................. ..... 8
REAR AUDIO REMOTE CONTROL UNIT ...... ..... 8
SATELLITE RADIO TUNER (PRE-WIRING) ... ..... 9
SATELLITE RADIO TUNER (FACTORY
INSTALLED) .................................................... ..... 9
SPEED SENSITIVE VOLUME SYSTEM ......... ..... 9
Schematic ........................................................... ... 10
Wiring Diagram — AUDIO — .............................. .... 11
Terminals and Reference Value for Audio Unit .... ... 22
Terminals and Reference Value for BOSE Speaker
Amp. .................................................................... ... 25
Terminals and Reference Value for Rear Audio
Remote Control Unit ............................................ ... 28
Terminals and Reference Value for AV Switch .... ... 29
Terminals and Reference Value for Satellite Radio
Tuner (Factory Installed) ..................................... ... 30
AV Switch Self-Diagnosis Function ..................... ... 31
STARTING THE SELF-DIAGNOSIS MODE .... ... 31
EXITING THE SELF-DIAGNOSIS MODE ........ ... 31
DIAGNOSIS FUNCTION .................................. ... 31
Trouble Diagnosis ............................................... ... 32
MALFUNCTION WITH RADIO AND CD .......... ... 32
FOR RADIO ONLY ........................................... ... 32
FOR CD ONLY ................................................. ... 33
FOR SATELLITE RADIO TUNER (FACTORY
INSTALLED) ONLY .......................................... ... 33
Noise Inspection .................................................. ... 33
TYPE OF NOISE AND POSSIBLE CAUSE ..... ... 33
Power Supply Circuit Inspection ......................... ... 35
Satellite Radio Tuner (Factory Installed) Power and
Ground Supply Circuit Inspection ........................ ... 37
Satellite Radio Tuner (Factory Installed) Commu- nication Circuit Inspection ....................................
... 38
Satellite Radio Tuner (Factory Installed) Left Chan-
nel Audio Signal Circuit Inspection ...................... ... 40
Satellite Radio Tuner (Factory Installed) Right
Channel Audio Signal Circuit Inspection ............. ... 41
Steering Switch Check ......................................... ... 41
AV Switch Check ................................................. ... 43
Audio Communication Line Check ...................... ... 44
Sound Is Not Heard From Front Door Speaker or
Front Tweeter ...................................................... ... 44
Sound Is Not Heard From Rear Door Speaker or
Rear Door Tweeter ................................................. 48
Sound Is Not Heard From Center Speaker ......... ... 51
Sound Is Not Heard From Subwoofer .................... 52
Removal and Installation ..................................... ... 55
AUDIO UNIT ..................................................... ... 55
AV SWITCH ...................................................... ... 55
BOSE SPEAKER AMP. .................................... ... 55
CENTER SPEAKER ......................................... ... 56
FRONT DOOR SPEAKER ............................... ... 56
FRONT TWEETER .......................................... ... 56
REAR AUDIO REMOTE CONTROL UNIT ....... ... 57
REAR DOOR SPEAKER .................................. ... 57
REAR DOOR TWEETER ................................. ... 57
SATELLITE RADIO ANTENNA ........................ ... 58
SATELLITE RADIO TUNER ............................. ... 58
STEERING WHEEL AUDIO CONTROL
SWITCHES ...................................................... ... 59
SUBWOOFER .................................................. ... 59
AUDIO ANTENNA ................................................. ... 60
System Description .............................................. ... 60
Wiring Diagram — W/ANT — .............................. ... 61
Location of Antenna ............................................. ... 62
Window Antenna Repair ...................................... ... 62
ELEMENT CHECK ........................................... ... 62
ELEMENT REPAIR .......................................... ... 63
TELEPHONE .......................................................... ... 64
Component Parts and Harness Connector Location ... 64
System Description .............................................. ... 65
BLUETOOTH® HANDS-FREE PHONE SYS-

AV-2Revision: November 20092006 QX56
TEM ..................................................................
... 65
Wiring Diagram — H/PHONE — ......................... ... 67
Terminals and Reference Value for Bluetooth Con-
trol Unit ................................................................... 69
Bluetooth Control Unit Self-Diagnosis Function .. ... 71
BLUETOOTH CONTROL UNIT INITIALIZATION
CHECKS ........................................................... ... 71
STARTING THE DIAGNOSTIC MODE ............ ... 71
Power Supply and Ground Circuit Check for Blue-
tooth Control Unit ................................................. ... 72
Removal and Installation ..................................... ... 73
BLUETOOTH CONTROL UNIT ........................ ... 73
BLUETOOTH ON INDICATOR ......................... ... 73
MICROPHONE ................................................. ... 73
DVD ENTERTAINMENT SYSTEM ......................... ... 75
Component Parts and Harness Connector Location ... 75
Description ........................................................... ... 76
Schematic ............................................................ ... 77
Wiring Diagram — DVD — .................................. ... 78
Trouble Diagnosis ................................................ ... 81
Power Supply Circuit Inspection .......................... ... 82
Removal and Installation ..................................... ... 83
DVD PLAYER ...................................................... 83
VIDEO MONITOR ............................................ ... 83
NAVIGATION SYSTEM .......................................... ... 84
System Description .............................................. ... 84
TRAVEL DISTANCE ......................................... ... 84
TRAVEL DIRECTION ....................................... ... 84
MAP-MATCHING .............................................. ... 85
GPS (GLOBAL POSITIONING SYSTEM) ....... ... 85
COMPONENT DESCRIPTION ......................... ... 86
CAN Communication System Description ........... ... 86
Component Parts Location .................................. ... 87
Schematic ............................................................ ... 88
Wiring Diagram — NAVI — .................................. ... 89
Schematic ............................................................ ... 96
Wiring Diagram — COMM — .............................. ... 97
Terminals and Reference Value for NAVI Control
Unit ...................................................................... .100
Terminals and Reference Value for Display Control
unit ....................................................................... .102
Terminals and Reference Value for Display unit .. .106
Terminals and Reference Value for AV Switch .... .108
Terminals and Reference Value for BCM ............. .109
On Board Self-Diagnosis Function ...................... ..111
DESCRIPTION ................................................. ..111
DIAGNOSIS ITEM ............................................ ..111
Self-Diagnosis Mode (DCU) ................................ .112
OPERATION PROCEDURE ............................. .112
SELF–DIAGNOSIS RESULT ............................ .113
Self-Diagnosis Mode (NAVI) ................................ .114
OPERATION PROCEDURE ............................. .114
SELF–DIAGNOSIS RESULT ............................ .115
Confirmation/Adjustment Mode ........................... .117
OPERATION PROCEDURE ............................. .117
DISPLAY DIAGNOSIS ...................................... .118
VEHICLE SIGNALS .......................................... .118
NAVIGATION .................................................... .119
DISPLAY DIAGNOSIS ...................................... .119VEHICLE SIGNALS ..........................................
.120
ERROR HISTORY ............................................ .120
DIAGNOSIS BY ERROR HISTORY ................. .120
NAVIGATION .................................................... .122
CAN DIAG SUPPORT MONITOR ....................... .124
OPERATION PROCEDURE ............................. .124
AV Switch Self-Diagnosis Function ...................... .125
Power Supply and Ground Circuit Check for NAVI
Control Unit .......................................................... .126
Power Supply and Ground Circuit Check for Display
Control Unit .......................................................... .127
Power Supply and Ground Circuit Check for Display
Unit ....................................................................... .128
Power Supply and Ground Circuit Check for AV
Switch .................................................................. .130
Vehicle Speed Signal Check for NAVI Control Unit .131
Vehicle Speed Signal Check for Display Control Unit .132
Illumination Signal Check for NAVI Control Unit .. .133
Illumination Signal Check for Display Control Unit .133
Ignition Signal Check for NAVI Control Unit ......... .133
Ignition Signal Check for Display Control Unit ..... .134
Reverse Signal Check for NAVI Control Unit ....... .134
Reverse Signal Check for Display Control Unit ... .134
AV Communication Line Check (Between Display
Control Unit and NAVI Control Unit) ..................... .135
Audio Communication Line Check (Between Dis-
play Control Unit and Audio Unit) ......................... .136
Display Communication Line Check (Between Dis-
play Control Unit and Display Unit) ...................... .138
AV Communication Line Check (Between Display
Control Unit and AV Switch) ................................. .139
CAN Communication Line Check ........................ .140
If NAVI Control Unit Detects That DVD-ROM Map
is Not Inserted ...................................................... .140
If NAVI Control Unit Detects That Inserted DVD-
ROM Map is Malfunctioning or If It is Impossible to
Load Data from DVD-ROM Map .......................... .141
If Connection Between NAVI Control Unit and GPS
Antenna is Malfunctioning .................................... .141
Operating Screen for Audio and A/C is Not Dis-
played When Showing NAVI Screen .................... .142
Color of RGB Image is Not Proper (Only NAVI
Screen Looks Bluish) ........................................... .143
Color of RGB Image is Not Proper (Only NAVI
Screen Looks Reddish) ........................................ .144
Color of RGB Image is Not Proper (Only NAVI
Screen Looks Yellowish) ...................................... .145
Color of RGB Image is Not Proper (All Screens Look
Bluish) .................................................................. .146
Color of RGB Image is Not Proper (All Screens Look
Reddish) ............................................................... .147
Color of RGB Image is Not Proper (All Screens Look
Yellowish) ............................................................. .148
NAVI Screen is Rolling ......................................... .150
Guide Sound is Not Heard ................................... .152
Screen is Not Shown ........................................... .153
A/C Screen is Not Shown (NAVI Screen is Shown) .153
FUEL ECONOMY Screen is Not Shown .............. .153
Average Fuel Economy Displayed is Not Shown (“

AV-3
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Revision: November 2009 2006 QX56
*** ” is Shown) .....................................................
. 153
Distance to Empty Displayed is Not Shown (“ *** ”
is Shown) ............................................................ . 154
Driving Distance or Average Speed Displayed is Not
Shown (“ *** ” is Shown) ...................................... . 154
WARNING DOOR OPEN Screen is Not Shown . . 154
Unable to Operate All of AV Switches (Unable to
Start Self-Diagnosis) ........................................... . 155
Audio Does Not Work .......................................... . 155
Navigation System Does Not Activate ................ . 155
Previous NAVI Conditions are Not Stored ........... . 156
Previous Vehicle Conditions are Not Stored ....... . 156
Position of Current Location Mark is Not Correct . 156
Radio Wave From GPS Satellite is Not Received . 156
Driving Test ......................................................... . 157
Example of Symptoms Judged Not Malfunction . . 158
BASIC OPERATION ........................................ . 158
VEHICLE MARK .............................................. . 158
DESTINATION, PASSING POINTS, AND MENU
ITEMS CANNOT BE SELECTED/SET ............ . 159
VOICE GUIDE .................................................. . 159
ROUTE SEARCH ............................................. . 160
EXAMPLES OF CURRENT-LOCATION MARK
DISPLACEMENT ............................................. . 161
CURRENT-LOCATION MARK SHOWS A POSI-
TION WHICH IS COMPLETELY WRONG ....... . 164CURRENT-LOCATION MARK JUMPS ............
.164
CURRENT-LOCATION MARK IS IN A RIVER OR
SEA .................................................................. .165
WHEN DRIVING ON SAME ROAD, SOME-
TIMES CURRENT-LOCATION MARK IS IN
RIGHT PLACE AND SOMETIMES IT IS WRONG
PLACE .............................................................. .165
LOCATION CORRECTION BY MAP-MATCH-
ING IS SLOW ................................................... .165
ALTHOUGH GPS RECEIVING DISPLAY IS
GREEN, VEHICLE MARK DOES NOT RETURN
TO CORRECT LOCATION ............................... .165
NAME OF CURRENT PLACE IS NOT DIS-
PLAYED ............................................................ .165
CONTENTS OF DISPLAY DIFFER FOR BIRD-
VIEW™ AND THE (FLAT) MAP SCREEN ....... .165
Program Loading of NAVI Control Unit ................ .166
Removal and Installation ..................................... .167
AV SWITCH ...................................................... .167
DISPLAY CONTROL UNIT ............................... .167
DISPLAY UNIT ................................................. .167
GPS ANTENNA ................................................ .167
NAVI CONTROL UNIT ..................................... .168
STEERING WHEEL AUDIO CONTROL
SWITCHES ...................................................... .168

AV-6
AUDIO
Revision: November 20092006 QX56
AUDIOPFP:28111
Component Parts and Harness Connector LocationEKS00BI7
WKIA4561E

AUDIOAV-7
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AV
Revision: November 2009 2006 QX56
1. Fuse block (J/B)2. Fuse and fusible link box 3. Front tweeter LH
M109
4. Combination meter M24 5. Center speaker
M110 6. Display unit
M93
7. Display control unit M94, M95 8. Front tweeter RH
M 111 9. AV Switch
M98
10. Audio unit M43, M44, M45, M46 11. BOSE speaker amp
M112, M113 12. Satellite radio tuner (pre-wiring or factory
installed, if equipped)
M41
13. Steering wheel audio control switches 14. Front door speaker LH, RH D12, D11215. Rear door tweeter LH, RH
D208, D308
16. Rear door speaker LH, RH D207, D307 17. Driver seat
18. Subwoofer
B72
19. Rear audio remote control unit R204

AV-8
AUDIO
Revision: November 20092006 QX56
System DescriptionEKS00BI8
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse [No. 17, located in the fuse block (J/B)]

to subwoofer terminal 6

through 20A fuse [No. 31, located in the fuse and fusible link box]

to audio unit terminal 6

to BOSE speaker amp. terminal 1

to AV switch terminal 1 and

to display control unit terminal 1.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to audio unit terminal 10 and

to AV switch terminal 2 and

to display control unit terminal 10.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 12, located in the fuse block (J/B)]

to display control unit terminal 12.
Ground is supplied through the case of the audio unit.
Ground is also supplied

to subwoofer terminal 5

through body grounds B7 and B19 and

to BOSE speaker amp. terminal 17

to AV switch terminal 5 and

to display unit terminal 1 and

to display control unit terminal 3

through body grounds M57, M61 and M79.
Then audio signals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16

to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29 and 30.
Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied

through BOSE speaker amp. terminals 2, 3, 9,10,11,12, 13, 14, 15, 16, 18 and 19

to terminals + and - of front door speaker LH and RH and

to terminals + and - of front tweeter LH and RH and

to terminals + and - of center speaker and

to terminals + and - of rear door speaker LH and RH and

to terminals + and - of rear door tweeter LH and RH and

to terminals 1 and 2 of subwoofer.
When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes
depending on which button is pushed.
REAR AUDIO REMOTE CONTROL UNIT
Power is supplied

from audio unit terminal 32

to rear audio remote control unit terminal 13.
Ground is supplied

to rear audio remote control unit terminal 15

through body grounds B117 and B132.
Audio signals are supplied