Base Audio

DOOR SPEAKER (COUPE)


Description

The audio unit sends audio signals to the door speakers using the door speaker circuits.





DOOR SPEAKER (COUPE)


Diagnosis Procedure

Regarding Wiring Diagram information, refer to Base Audio.
1.HARNESS CHECK





1. Disconnect audio unit connector M43 (A) and suspect speaker connector (B).
2. Check continuity between audio unit harness connector M43 (A) terminal and suspect speaker harness connector (B) terminal.





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






Are continuity results as specified?
YES - GO TO 2
NO - Check connector housings for disconnected or loose terminals.
- Repair harness or connector.
2.DOOR SPEAKER SIGNAL CHECK
1. Connect audio unit connector and front speaker 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.





Is the audio signal voltage as specified?
YES - Replace speaker. Refer to Base Audio.
NO - Replace audio unit. Refer to Base Audio.