Power Supply Circuit Inspection

AUDIO

Power Supply Circuit Inspection


1. CHECK FUSE

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





OK or NG
OK- GO TO 2.
NG- If fuse is blown, be sure to eliminate cause of blown fuse 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 and ground.










OK or NG
OK- With premium system, 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 (premium system) harness connectors M43 (A), M44 (B) terminals 20, 61 and ground.
Continuity should exist.
OK or NG
OK- Inspection End.
NG- - Check connector housings for disconnected or loose terminals.
- Repair harness or connector.