Sound Is Not Heard From Front Door Speaker Or Front Tweeter (Base And Mid Level System)

AUDIO


Sound Is Not Heard from Front Door Speaker or Front Tweeter (Base and Mid Level System)

1.HARNESS CHECK
1. Disconnect audio unit connector M43 and front door speaker and tweeter connector (LH or RH).






2. Check continuity between audio unit harness connector M43 terminal and suspect speaker or tweeter harness connector terminal.






3. Check continuity between audio unit harness connector M43 terminal and ground.






OK or NG
OK - GO TO 2.
NG - - Check connector housings for disconnected or loose terminals.
- Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and front speaker or tweeter connector.
2. Turn ignition switch to ACC.
3. Push "POWER" switch.






4. Check the signal between audio unit harness connector terminals with CONSULT-III or oscilloscope.






OK or NG
OK - Replace speaker. Refer to Service and Repair or Service and Repair.
NG - Replace audio unit. Refer to Service and Repair.