2008 INFINITI QX56 Factory Service Manual

Page 241 of 4083

INFINITI QX56 2008  Factory Service Manual AV-60
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1258 SATELLITE RADIO ANTENNA
U1258 SATELLITE RADIO ANTENNA
DescriptionINFOID:0000000001696091
DTC LogicINFOID:0000000001696092
Diagnosis ProcedureINFOID:00

Page 242 of 4083

INFINITI QX56 2008  Factory Service Manual AV
U1300 AV COMM CIRCUITAV-61
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
U1300 AV COMM CIRCUIT
DescriptionINFOID:0000000001696094
U1300 is indicated when malfunction occurs i

Page 243 of 4083

INFINITI QX56 2008  Factory Service Manual AV-62
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
DescriptionINFOID:0000000001696095
Replace the AV control unit if this DTC is displayed. Refer to 
AV-164, "Remo

Page 244 of 4083

INFINITI QX56 2008  Factory Service Manual AV
POWER SUPPLY AND GROUND CIRCUITAV-63
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID

Page 245 of 4083

INFINITI QX56 2008  Factory Service Manual AV-64
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
1. Ignition OFF.
2. Check continuity between AV control unit harness connectors
M42 and M45 and ground.
Are the continuity r

Page 246 of 4083

INFINITI QX56 2008  Factory Service Manual AV
POWER SUPPLY AND GROUND CIRCUITAV-65
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector.
3

Page 247 of 4083

INFINITI QX56 2008  Factory Service Manual AV-66
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
BOSE SPEAKER AMP
BOSE SPEAKER AMP 
: Diagnosis ProcedureINFOID:0000000001696100
1.CHECK FUSE
Check that the BOSE speaker amp

Page 248 of 4083

INFINITI QX56 2008  Factory Service Manual AV
POWER SUPPLY AND GROUND CIRCUITAV-67
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
1. Turn ignition switch OFF.
2. Disconnect subwoofer connector.
3. Check voltage between su