Bose Audio With Navigation

POWER SUPPLY AND GROUND CIRCUIT


WOOFER AMP. WOOFER AMP. : Diagnosis Procedure

1.CHECK FUSE
Check for blown fuses.





Is the inspection result normal?
YES - GO TO 2.
NO - Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between woofer amp. harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Check harness between woofer amp. and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect woofer amp. connector.
3. Check continuity between woofer amp. harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair harness or connector.