radio INFINITI QX56 2007 Factory User Guide

AV-32
< SERVICE INFORMATION >
AUDIO
3. Check voltage between subwoofer and ground.
4. Check voltage between BOSE speaker amp. and ground.
OK or NG
OK >> GO TO 3.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Check continuity between subwoofer harness connector B72 termi-
nal 5 and BOSE speaker amp. harness connector M112 terminal 17
and ground.
OK or NG
OK >> Inspection End.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit Inspection
INFOID:0000000003533676
1.CHECK FUSES
• Check that the following fuses are not blown.
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
Audio unit M436GroundBattery
voltageBattery
voltageBattery
voltage
10 Ground 0 VBattery
voltageBattery
voltage
SKIA1992E
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
Subwoof-
erB72 6 GroundBattery
voltageBattery
voltageBattery
voltage
WKIA1598E
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
BOSE
speaker
amp.M112 1 GroundBattery
voltageBattery
voltageBattery
voltage
SKIA4311E
Continuity should exist.
WKIA1599E

AUDIO
AV-33
< SERVICE INFORMATION >
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OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
3.
2.POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) M41 connector.
3. Check voltage between the satellite radio tuner (factory installed) and ground.
OK or NG
OK >> GO TO 3.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Inspect satellite radio tuner (factory installed) case ground.
3. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
4. Check continuity between satellite radio tuner (factory installed) and audio unit.
OK or NG
OK >> Inspection End.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness, connector or satellite radio tuner (factory installed) case ground.
Satellite Radio Tuner (Factory Installed) Communication Circuit InspectionINFOID:0000000003533677
1.CHECK HARNESS - 1
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41 and audio unit connector M42.
Unit Terminals Signal name Fuse No.
Satellite radio tuner (factory in-
stalled)32 Battery power 31
36 Ignition switch ACC or ON 4
UnitTerminal No.
OFF ACC ON (+)
(-)
Connector Terminal
Satellite
radio tuner
(factory in-
stalled)M4132 GroundBattery
voltageBattery
voltageBattery
voltage
36 Ground 0VBattery
voltageBattery
voltage
WKIA4539E
Te r m i n a l s
Continuity Satellite radio tuner (factory in-
stalled)Audio unit
Connector Terminal Connector Terminal
A: M4125
B: M4245
Ye s
26 46
WKIA4540E

AV-34
< SERVICE INFORMATION >
AUDIO
3. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and audio unit harness
connector M42 (B) terminal 48
4. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK HARNESS - 2
1. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and audio unit harness
connector M42 (B) terminal 49
2. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK HARNESS - 3
1. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and audio unit harness
connector M42 (B) terminal 50
2. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK REQ1 SIGNAL
1. Connect satellite radio tuner (factory installed) connector and audio unit connector.
2. Turn ignition switch to ACC
3. Check signal between satellite radio tuner (factory installed) har-
ness connector M41 terminal 28 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> GO TO 5.Continuity should exist.
Continuity should not exist.
WKIA4541E
Continuity should exist.
Continuity should not exist.
WKIA4542E
Continuity should exist.
Continuity should not exist.
WKIA4543E
28 - Ground : Refer to AV-28, "Terminal
and Reference Value for Satel-
lite Radio Tuner (Factory In-
stalled)".
WKIA4544E

AUDIO
AV-35
< SERVICE INFORMATION >
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NG >> Replace audio unit. Refer to AV-46, "Removal and Installation".
5.CHECK TXD SIGNAL
1. Check signal between satellite radio tuner (factory installed) har-
ness connector M41 terminal 29 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> GO TO 6.
NG >> Replace audio unit. Refer to AV-46, "
Removal and
Installation".
6.CHECK RXD SIGNAL
1. Check signal between satellite radio tuner (factory installed) har-
ness connector M41 terminal 30 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to
AV-46, "
Removal and Installation".
NG >> Replace audio unit. Refer to AV-46, "
Removal and Installation".
Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit Inspection
INFOID:0000000003533678
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
4. Check continuity between satellite radio tuner (factory installed)
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.29 - Ground : Refer to AV-28, "
Terminal
and Reference Value for Satel-
lite Radio Tuner (Factory In-
stalled)".
WKIA4545E
30 - Ground : Refer to AV-28, "Terminal
and Reference Value for Satel-
lite Radio Tuner (Factory In-
stalled)".
WKIA4546E
Te r m i n a l s
Continuity Satellite radio tuner (factory in-
stalled)Audio unit
Connector Terminal Connector Terminal
A: M4121
B: M4241
Ye s
22 42
Te r m i n a l s
Continuity Satellite radio tuner (factory installed)
—
Connector Terminal
A: M4121
Ground No
22
WKIA4547E

AV-36
< SERVICE INFORMATION >
AUDIO
2.CHECK LEFT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector M41 terminals 21 and 22 with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to
AV-46, "
Removal and Installation".
NG >> Replace audio unit. Refer to AV-46, "
Removal and Installation".
Satellite Radio Tuner (Factory Installed) Right Channel Audio Signal Circuit Inspection
INFOID:0000000003533679
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
4. Check continuity between satellite radio tuner (factory installed)
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK RIGHT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.21 - 22 : Refer to AV-28, "
Terminal
and Reference Value for Sat-
ellite Radio Tuner (Factory In-
stalled)".
WKIA4548E
Te r m i n a l s
Continuity Satellite radio tuner (factory in-
stalled)Audio unit
Connector Terminal Connector Terminal
A: M4123
B: M4243
Ye s
24 44
Te r m i n a l s
Continuity Satellite radio tuner (factory installed)
—
Connector Terminal
A: M4123
Ground No
24
WKIA4549E

AUDIO
AV-37
< SERVICE INFORMATION >
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3. Check signal between satellite radio tuner (factory installed)
connector M41 terminals 23 and 24 with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to
AV-46, "
Removal and Installation".
NG >> Replace audio unit. Refer to AV-46, "
Removal and Installation".
Steering Switch CheckINFOID:0000000003533680
1.AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1. Start AV switch self-diagnosis function. Refer to AV-28, "
AV Switch Self-Diagnosis Function".
2. Operate steering switch.
Does steering switch operate normally?
YES >> Inspection End.
NO >> GO TO 2.
2.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect AV switch connector M98 and spiral cable connector M30.
3. Check continuity between spiral cable harness connector terminal and AV switch harness connector ter-
minal.
4. Check continuity between AV switch and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
3.SPIRAL CABLE CHECK
1. Disconnect spiral cable connectors M30 and M102.23 - 24 : Refer to AV-28, "
Terminal
and Reference Value for Sat-
ellite Radio Tuner (Factory In-
stalled)".
WKIA4550E
Te r m i n a l s
Continuity Spiral cable AV switch
Connector Terminal Connector Terminal
M3032
M9813
Ye s 31 14
24 12
Te r m i n a l s
Continuity AV switch
—
Connector Terminal
M9812
Ground No 13
14
WKIA1600E

AUDIO
AV-47
< SERVICE INFORMATION >
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2. Remove audio unit screws, using power tool.
3. Pull out audio unit and disconnect audio unit connectors.
Installation
Installation is in the reverse order of removal.
AV SWITCH
Removal
1. Disconnect battery negative terminal.
2. Remove center console. Refer to IP-10
.
3. Disconnect center speaker.
4. Remove AV switch screws.
5. Carefully remove the AV switch.
Installation
Installation is in the reverse order of removal.
BOSE SPEAKER AMP.
Removal
1. Remove the accelerator pedal. Refer to ACC-3.
2. Remove BCM. Refer to BCS-24, "
BCM".
3. Disconnect Bose speaker amp. and satellite radio tuner (if equipped) connectors.
4. Remove Bose speaker amp./satellite radio tuner bracket screws
and slide Bose speaker amp./satellite radio tuner bracket down.
WKIA1490E
WKIA1798E
WKIA1605E

AV-48
< SERVICE INFORMATION >
AUDIO
5. Remove Bose speaker amp. screws (A) and remove Bose
speaker amp. from Bose speaker amp./satellite radio tuner
bracket.
Installation
Installation is in the reverse order of removal.
CENTER SPEAKER
Removal
1. Remove center console. Refer to IP-10.
2. Remove cluster lid D. Refer to IP-10
.
3. Disconnect center speaker connectors.
4. Remove the center speaker screws and remove the center
speaker.
Installation
Installation is in the reverse order of removal.
FRONT DOOR SPEAKER
Removal
1. Remove front door finisher. Refer to EI-31.
2. Remove the four front door speaker screws.
3. Disconnect connector and remove front door speaker.
Installation
Installation is in the reverse order of removal.
FRONT TWEETER
Removal
1. Remove front tweeter grille. Refer to IP-10, "Removal and Installation".
LKIA0678E
WKIA1799E
WKIA1498E

AV-50
< SERVICE INFORMATION >
AUDIO
2. Remove rear door tweeter screws and remove rear door
tweeter.
3. Disconnect rear door tweeter connector.
Installation
Installation is in the reverse order of removal.
SATELLITE RADIO ANTENNA
Removal
1. Lower headliner. Refer to EI-37.
2. Disconnect satellite radio antenna connector.
3. Remove satellite radio antenna nut.
4. Remove satellite radio antenna.
Installation
Installation is in the reverse order of removal.
SATELLITE RADIO TUNER
Removal
1. Remove BCM. Refer to BCS-24, "BCM".
2. Remove the accelerator pedal. Refer to ACC-3
.
3. Disconnect Bose speaker amp. and satellite radio tuner connectors.
4. Remove Bose speaker amp./satellite radio tuner bracket screws
and slide Bose speaker amp./satellite radio tuner bracket down.
WKIA1494E
LKIA0679E
WKIA1605E

AUDIO
AV-51
< SERVICE INFORMATION >
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5. Remove satellite radio tuner screws (A) and remove satellite
radio tuner from Bose speaker amp./satellite radio tuner bracket
(1).
Installation
Installation is in the reverse order of removal.
STEERING WHEEL AUDIO CONTROL SWITCHES
Removal
1. Remove steering wheel. Refer to PS-7.
2. Remove steering wheel rear cover screws and remove steering wheel rear cover.
3. Remove steering wheel switch assembly screws and steering
wheel switches.
Installation
Installation is in the reverse order of removal.
SUBWOOFER
Removal
1. Remove front driver seat. Refer to SE-83.
2. Remove the subwoofer bolts.
3. Disconnect subwoofer connector and remove the subwoofer.
Installation
Installation is in the reverse order of removal.
LKIA0677E
WKIA1226E
WKIA1496E