Audio Unit Base And Mid System

AUDIO

Audio Unit (Base and Mid System) Power and Ground Supply Circuit Inspection


1. CHECK FUSE

Check that the following fuses of the audio amplifier (premium system) and audio unit are not blown.





OK or NG
OK- GO TO 2.
NG- If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Description and Operation.

2. AUDIO UNIT POWER SUPPLY CIRCUIT CHECK

1.Disconnect audio unit connector.
2.Check voltage between the audio unit connector and ground.










OK or NG
OK- GO TO 3.
NG- - Check connector housings for disconnected or loose terminals.
- Repair harness or connector.

3. GROUND CIRCUIT CHECK






Check continuity between audio unit harness connector M43 terminals 28 (mid system), 20 and ground.
Continuity should exist.
OK or NG
OK- Inspection End.
NG- - Check connector housings for disconnected or loose terminals.
- Repair harness or connector.