Display Audio System

POWER SUPPLY AND GROUND CIRCUIT


AUDIO UNIT : Diagnosis Procedure

1.CHECK FUSE
Check that the following fuses of the audio unit are not blown.





Is inspection result OK?
YES - GO TO 2.
NO - If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK AUDIO UNIT POWER SUPPLY CIRCUIT
Check voltage between the audio unit and ground.





Is inspection result OK?
YES - INSPECTION END
NO - Check harness between audio unit and fuse.