2007 INFINITI QX56 wiring

AUDIO
AV-9
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Wiring Diagram - AUDIO -INFOID:0000000003533666
AWNWA0326G

AV-30
< SERVICE INFORMATION >
AUDIO
FOR RADIO ONLY
NOTE:
1. The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
• Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
• Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves which reflect off mountains or buildings.
FOR CD ONLY
FOR SATELLITE RADIO TUNER (FACTORY INSTALLED) ONLY
NOTE:
Pressing the SAT button, the display unit will display `NO SAT' when the following conditions exist:
Symptom Possible cause
No sound• Audio unit
• Antenna feeder, wiring or connections
• Antenna amplifier, power supply, wiring or connections
Noisy• Audio unit
• Audio unit case ground
• Antenna feeder, wiring or connections
• Antenna amplifier, power supply, wiring or connections
• Noise prevention parts
• Each electrical equipment
• Wire harness of each piece of electrical equipment
All radio stations stored in memory are deleted• Audio unit power circuit check. Refer to AV- 3 1 , "
Power Supply Cir-
cuit Inspection".
• Audio unit
Symptom Possible cause
CD cannot be inserted.
•CD
• Audio unit CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
Symptom Possible cause
Inoperative• Satellite radio tuner (factory installed) power and ground circuit inspection.
Refer to AV- 3 2 , "
Satellite Radio Tuner (Factory Installed) Power and Ground
Supply Circuit Inspection".
• Satellite radio tuner (factory installed) communication circuit inspection. Re-
fer to AV- 3 3 , "
Satellite Radio Tuner (Factory Installed) Communication Circuit
Inspection".
If above check is OK, replace satellite radio tuner (factory installed). Refer to
AV- 4 6 , "
Removal and Installation".
Right or left channel does not sound• Satellite radio tuner (factory installed) right channel audio signal circuit in-
spection. Refer to AV- 3 6 , "
Satellite Radio Tuner (Factory Installed) Right
Channel Audio Signal Circuit Inspection".
• Satellite radio tuner (factory installed) left channel audio signal circuit inspec-
tion. Refer to AV- 3 5 , "
Satellite Radio Tuner (Factory Installed) Left Channel
Audio Signal Circuit Inspection".
If above check is OK, replace satellite radio tuner (factory installed). Refer to
AV- 4 6 , "
Removal and Installation".
Poor reception• Location of vehicle. Make certain vehicle is in an open area.
• Satellite radio antenna or antenna feeder. Refer to AV- 5 2
.
Noisy• Satellite radio tuner (factory installed) ground.
• Satellite radio tuner (factory installed) harness shield wires.
• Electrical equipment (generator, bonding wire, etc.). Refer to AV- 3 1 , "
Noise
Inspection".

AUDIO
AV-31
< SERVICE INFORMATION >
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• Loss of power to the satellite radio tuner (factory installed)
• Open or short in the REQ1, TXD, or RXD circuits.
If the satellite antenna is disconnected or inoperative, the display unit will display ANTENNA.
Noise InspectionINFOID:0000000003533674
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Power Supply Circuit InspectionINFOID:0000000003533675
1.CHECK FUSES
Check that the following fuses are not blown.
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. Disconnect audio unit connector M43, subwoofer connector B72 and BOSE speaker amp. connector
M112.
2. Check voltage between the audio unit and ground.
Occurrence condition Possible cause
Occurs only when engine is ON.A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.• Ignition components
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the lighting switch is ON.• Generator
The occurrence of the noise is linked with the operation of the fuel pump. • Fuel pump condenser
Noise only occurs when various
electrical components are oper-
ating.A cracking or snapping sound occurs with the op-
eration of various switches.• Relay malfunction, audio unit malfunction
The noise occurs when various motors are operat-
ing.• Motor case ground
•Motor
The noise occurs constantly, not just under certain conditions.• Rear defogger coil malfunction
• Open circuit in printed heater
• Poor ground of antenna amplifier or anten-
na feeder line
A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively.• Ground wire of body parts
• Ground due to improper part installation
• Wiring connections or a short circuit
Unit Terminals Signal name Fuse No.
Audio unit6 Battery power 31
10 Ignition switch ACC or ON 4
AV switch1 Battery power 31
2 Ignition switch ACC or ON 4
BOSE speaker amp. 1 Battery power 31
Subwoofer 6 Battery power 17

AUDIO ANTENNA
AV-53
< SERVICE INFORMATION >
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Wiring Diagram - W/ANT -INFOID:0000000003533689
WKWA2285E

AV-58
< SERVICE INFORMATION >
TELEPHONE
Audio Unit
The audio unit receives signals from the Bluetooth control unit and sends audio signals to the speakers.
Wiring Diagram - H/PHONE -INFOID:0000000003533694
WKWA3603E

DVD ENTERTAINMENT SYSTEM
AV-67
< SERVICE INFORMATION >
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Wiring Diagram - DVD -INFOID:0000000003533702
WKWA2286E

AV-78
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Wiring Diagram - NAVI -
INFOID:0000000003533710
WKWA3592E

AV-86
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Wiring Diagram - COMM -
INFOID:0000000003533712
WKWA3600E