Nissan Altima 2007-2012 Service Manual: Satellite radio tuner
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. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector B57.
3. Check voltage between the satellite radio tuner (factory installed) 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 satellite radio tuner (factory installed) case ground.
Does case ground pass inspection? YES >> Inspection End.
NO >> Repair satellite radio tuner (factory installed) case ground.
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 be ...Power supply and ground circuit (sedan)
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 cau ...Other materials:
Fuel injector
Description
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injector
is energized. The energized coil pulls the ball valve back and
allows fuel to flow via the fuel injector into the intake manifold. The
amo ...
Front door speaker (sedan)
Description
The audio unit sends audio signals to the front door speakers using the
door speaker circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect audio unit connector M43 (A) and suspect speaker
connector (B).
2. Check continuity between audio unit harness connector M43 (A)
t ...
Power supply and ground circuit for front air control
Description
COMPONENT DESCRIPTION
FRONT AIR CONTROL
The front air control has a built-in microcomputer which processes
information sent from various sensors needed for air conditioner
operation. The air mix door motors, mode door motor, intake door
motor, blower motor and compressor are then c ...