Nissan Altima 2007-2012 Service Manual: Bluetooth control unit

Diagnosis Procedure

1.CHECK FUSE

Check that the following fuses of the Bluetooth 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 Bluetooth control unit harness connector and ground.

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

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

3.CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector B55.

3. Check continuity between Bluetooth control unit harness connector and ground.

Does continuity exist? YES >> Inspection End.

NO >> Repair harness or connector.

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