2010 INFINITI QX56 audio

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Page 263 of 4210

INFINITI QX56 2010  Factory Service Manual AV-66
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1300 AV COMM CIRCUIT
U1300 AV COMM CIRCUIT
DescriptionINFOID:0000000005146298
U1300 is indicated when malfunction occurs in communi
cation signal of multi

Page 264 of 4210

INFINITI QX56 2010  Factory Service Manual AV
U1310 AV CONTROL UNITAV-67
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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U1310 AV CONTROL UNIT
DescriptionINFOID:0000000005146299
Replace the AV control unit if this DTC is d

Page 265 of 4210

INFINITI QX56 2010  Factory Service Manual AV-68
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:0000000005146301
Regarding Wirin

Page 266 of 4210

INFINITI QX56 2010  Factory Service Manual AV
POWER SUPPLY AND GROUND CIRCUITAV-69
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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1. Ignition OFF.
2. Check continuity between AV control unit harness connectors M42 and M45

Page 267 of 4210

INFINITI QX56 2010  Factory Service Manual AV-70
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
NO >> Repair harness or connector.
A/C AND AV SWITCH ASSEMBLY
A/C AND AV SWITCH ASSEMBLY : Diagnosis ProcedureINFOID:0000000

Page 268 of 4210

INFINITI QX56 2010  Factory Service Manual AV
POWER SUPPLY AND GROUND CIRCUITAV-71
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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Are the fuses OK?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before in

Page 269 of 4210

INFINITI QX56 2010  Factory Service Manual AV-72
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect subwoofer connector.
3. Check voltage between subwoofer harness connector B72 ter

Page 270 of 4210

INFINITI QX56 2010  Factory Service Manual AV
POWER SUPPLY AND GROUND CIRCUITAV-73
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera control