Nissan Altima (L32) 2007-2012 Service Manual: Audio unit
Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses are not blown.
Are the fuses 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
1. Disconnect audio unit connector M43.
2. Check voltage between the audio unit connector M43 and
ground.
Are the voltage results as specified?
YES >> GO TO 3
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Inspect audio unit case ground.
Does case ground pass inspection?
YES >> Inspection End.
NO >> Repair audio unit case ground.
Diagnosis Procedure
1.CHECK FUSE
Check for blown fuses.
Are the fuses OK?
YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER ...
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When towing your vehicle, all State (Provincial
in Canada) and local regulations for
towing must be followed. Incorrect towing
equipment could damage your vehicle.
Towing instructions are available from a
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Active noise cancellation/Active sound
enhancement (if so equipped)
Active noise cancellation
Front Microphone
This system uses microphones 1 located
inside the vehicle to detect engine booming
noise. The system then automatically generates
a noise cancelling sound through the
speakers and woofer (if so equipped) to reduce
engine booming noise.
NOTE:
To operate the ...
Exhaust gas (carbon monoxide)
WARNING
Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is
dangerous. It can cause unconsciousness
or death.
If you suspect that exhaust fumes
are entering the vehicle, drive with all
windows fully open, and have the vehicle
inspected imme ...
Power supply and ground circuit
(sedan)
Bose speaker AMP