Nissan Altima 2007-2012 Service Manual: AV control unit

Diagnosis Procedure

1.CHECK FUSE

Check that the following fuses of the AV control unit are not blown.

Are the fuses OK? YES >> GO TO 2

NO >> Be sure to eliminate cause of malfunction before installing new fuse.

2.CHECK POWER SUPPLY CIRCUIT

Check voltage between AV control unit harness connector and ground.

Are the voltage tests as specified? YES >> GO TO 3

NO >> Check harness between AV control unit and fuse.

3.CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect AV control unit connectors.

3. Check continuity between AV control unit harness connector M47 terminal 19 and ground.

Does continuity exist? YES >> Inspection End.

NO >> Repair harness or connector.

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