Audio Amplifier Without Navigation

AUDIO

Audio Amplifier Power and Ground Supply Circuit Inspection


1. CHECK FUSE

Check that the following fuses of the audio amplifier 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.

2. AUDIO AMPLIFIER POWER SUPPLY CIRCUIT CHECK

1.Disconnect audio amplifier connector.





2.Check voltage between audio amplifier 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 amplifier harness connector B44
terminals 4, 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.