Base Audio

REAR DOOR SPEAKER


Description

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




REAR DOOR SPEAKER


Diagnosis Procedure

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





1. Disconnect audio unit connector M133 (A) and suspect speaker connector.
2. Check continuity between audio unit harness connector M133
(A) and suspect speaker harness connector (B).





3. Check continuity between audio unit harness connector M133
(A) and ground.






Are the continuity results as specified?
YES - GO TO 2.
NO - Check connector housings for disconnected or loose terminals.
- Repair harness or connector.
2.REAR DOOR SPEAKER SIGNAL CHECK





1. Connect audio unit connector and rear door 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 rear door speaker. Base Audio.
NO - Replace audio unit. Base Audio.