Without Surround Sound

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Bose Audio.

1. CHECK FUSE

Check that the following fuses are not blown.





Are the fuses blown?
YES- Replace the blown fuse after repairing the affected circuit.
NO- GO TO 2.

2. CHECK POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect AV control unit connectors M122 and M124.
3.Check voltage between AV control unit connectors and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness or connectors.

3. CHECK GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between AV control unit connector M122 terminal 20 and ground.





Is the inspection result normal?
YES- Inspection End.
NO- Repair or replace harness or connectors.