Without Display Audio

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Without Display 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 audio unit connector M43.
3.Check voltage between audio unit connector M43 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.Disconnect audio unit connector M44.
3.Check continuity between audio unit connectors and ground.





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