Mid Audio

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT : Diagnosis Procedure

Regarding Wiring Diagram information, Mid Audio System.

1. CHECK FUSES

Check that the following fuses of the AV control unit are not 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 M131 and M135.
2.Check voltage between the AV control unit connectors M131
and M135 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.Turn ignition switch OFF.
2.Check continuity between AV control unit harness connectors M131, M133, M134, M135 and ground.





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