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 ...
Other materials: Fuel gauge
The gauge indicates the approximate fuel
level in the tank.
The gauge may move slightly during braking,
turning, acceleration, or going up or
down hills.
The gauge needle returns to 0 (Empty) after
the ignition switch is placed in the OFF
position.
The low fuel warning message shows in
the vehic ...
Trip computer
1. Vehicle speed
The vehicle speed mode shows the current
vehicle speed and the average vehicle
speed since the last reset.
Average vehicle speed:
Press the OK button on the steering wheel
to bring up the drive computer Reset
menu, and follow the instructions to reset.
For additional information, ...
Warning lights, indicator lights and audible
reminders
Warning/Indicator light (red)
Brake warning light
Charge warning light
Electronic parking brake
indicator
light (if so equipped)
Engine oil pressure warning
light
Master warning light
Seat belt warning light and
chime
Security indicator light
Supplemental air bag warning
light
Warning/Indic ...