Bose Audio With Navigation

POWER SUPPLY AND GROUND CIRCUIT


AV CONTROL UNIT : Diagnosis Procedure

1.CHECK FUSES
Check that the following AV control unit 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 AV control unit connectors M161 and M165.
2. Check voltage between the AV control unit connectors M161 and M165 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
1. Ignition OFF.
2. Check continuity between AV control unit harness connectors M161 and M165 and ground.










Are the continuity results as specified?
YES - Inspection End.
NO - Repair AV control unit ground.