AV Control Unit

POWER SUPPLY AND GROUND CIRCUIT


AV CONTROL UNIT : Diagnosis Procedure

1.CHECK FUSE
Check for blown fuses.





Is 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 AV control unit harness connectors and ground.





Is inspection result normal?
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 connectors and ground.





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