Without Surround Sound

POWER SUPPLY AND GROUND CIRCUIT

HEADREST DISPLAY 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.Disconnect headrest display unit connector.
2.Check voltage between headrest display unit connector 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 headrest display unit connector and ground.





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