2010 INFINITI QX56 CD player

AV
AV-1
DRIVER INFORMATION & MULTIMEDIA
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SECTION AV
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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
AV-3
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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

AV
DVD PLAYERAV-21
< FUNCTION DIAGNOSIS > [AUDIO SYSTEM]
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DVD PLAYER
System DiagramINFOID:0000000005146234
System DescriptionINFOID:0000000005146235
The DVD entertainment system consists of the following components
• AV control unit
• DVD player
• Video monitor
• A/C and AV switch assembly
• Steering wheel audio control switches
• Rear audio remote control unit
• BOSE speaker amp.
• Front tweeters
• Front door speakers
• Center speaker
• Rear door tweeters
• Rear door speakers
• Back door speakers
• Subwoofer
When the DVD entertainment system is on, video signals are sent from the DVD player to the video monitor.
Audio signals are sent to the AV control unit. Audio signals can be directed through wireless infrared head-
phones or through the BOSE speaker amp. to the vehicle speakers. Refer to the Owner’s Manual for complete
DVD entertainment system operating instructions.
AWNIA1550GB
Revision: April 20092010 QX56

AV-22
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
DVD PLAYER
Component Parts Location
INFOID:0000000005146236
Component DescriptionINFOID:0000000005146237
1. Steering wheel audio control switches 2. AV control unit M42, M43, M44, M45, M97, M124, M1253. A/C and AV switch assembly M98
4. DVD player M205 (located in center console) 5. Rear audio remote control unit R204 6. Video monitor R202
AWNIA1551ZZ
Part name
Description
DVD player • Outputs DVD video to video monitor
• Outputs DVD audio to the AV control unit
Video monitor • Receives and displays the DVD video signal
AV control unit • Controls audio system and DVD entertainment system functions
BOSE speaker amp. • Recieves audio signals from the AV control unit
• Outputs amplified audio signals to the speakers
A/C and AV switch assembly • All audio and A/C operations can be operated
• Switch signal is output to the AV control unit and A/C auto amp
Rear audio remote control unit • Audio and DVD functions can be operated
• Switch signal is output to the AV control unit
• Receives audio signal from AV control unit for headphones
Steering wheel audio control switches • Audio operation can be operated
• Steering switch signal (operation signal) is output to AV control unit
Front door speakers • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Front tweeters • Outputs audio signal from BOSE speaker amp.
• Outputs high range sounds
Center speaker • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Revision: April 20092010 QX56

AV
DVD PLAYERAV-23
< FUNCTION DIAGNOSIS > [AUDIO SYSTEM]
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Rear door tweeters • Outputs audio signal from BOSE speaker amp.
• Outputs high range sounds
Rear door speakers • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Back door speakers • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Subwoofer • Outputs audio signal from BOSE speaker amp.
• Outputs low range sounds
Part name
Description
Revision: April 20092010 QX56

AV-30
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Area with yellow connection lines
DescriptionPossible malfunction location / Action
to take
AV control unit malfunction is detect-
ed Replace the AV control unit. Refer to
AV- 1 6 9 , "
Removal and Installation".
Poor connection is detected for the
display unit • Harness or connector
• AV control unit
• Display unit
Switch malfunction is dectected Perform A/C and AV switch assembly
diagnostics. Refer to
AV- 4 0 , "
A/C
AND AV SWITCH ASSEMBLY : Com-
ponent Function Check".
Poor connection is detected for the
DVD player. • Harness or connector
• AV control unit
• DVD player
ALNIA0214GB
ALNIA0207GB
ALNIA0212GB
ALNIA0213GB
Revision: April 20092010 QX56

AV-74
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
3.CHECK POWER SUPPLY CIRCUIT (REAR
VIEW CAMERA CONTROL UNIT SIDE)
1. Connect rear view camera control unit harness connector.
2. Turn ignition switch ON.
3. Check voltage between rear view camera control unit harness connector B73 and ground.
Is voltage reading approximately 6 volts?
YES >> Inspection End.
NO >> Replace rear view camera control unit. Refer to AV-189,
"Removal and Installation".
4.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera harness connector.
3. Check continuity between rear view camera harness connector D504 terminal 2 and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair harness or connector.
DVD PLAYER
DVD PLAYER : Diagnosis ProcedureINFOID:0000000005146308
Regarding Wiring Diagram information, refer to AV-116, "Wiring Diagram".
1.CHECK FUSE
Check that the DVD player fuse is not blown.
Is the fuse OK?
YES >> GO TO 2.
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
Signal name Connector Terminal Transmission
position Value (Approx.)
Camera ON signal B73 8 Reverse 6V
ALLIA0247ZZ
Signal nameContinuity
Ground Yes
ALLIA0248ZZ
UnitTerminal Signal name Fuse No.
DVD player 21
Battery power 31
24 Ignition switch ACC or ON 4
Revision: April 20092010 QX56