Bose W/ Color Display

POWER SUPPLY AND GROUND CIRCUIT


A/C AND AV SWITCH ASSEMBLY

A/C AND AV SWITCH ASSEMBLY : Diagnosis Procedure

Regarding Wiring Diagram information, Bose W/ Color W/ Rear Control.
1.CHECK FUSE
Check that the fuse of the AC and AV switch assembly is not blown.





Is the fuse 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 A/C and AV switch assembly connector M98.
2. Check voltage between the A/C and AV switch assembly connector M98 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 A/C and AV switch assembly harness connector M98 and ground.





Are the continuity results as specified?
YES - Inspection End.
NO - Repair harness or ground.