Base Audio

REAR DOOR SPEAKER


Description

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





REAR DOOR SPEAKER


Diagnosis Procedure

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





1. Disconnect AV control unit connector M42 and suspect rear speaker connector.
2. Check continuity between AV control unit harness connector
M42 (A) and suspect rear speaker harness connector (B).





3. Check continuity between AV control unit harness connector
M42 (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 SPEAKER SIGNAL CHECK





1. Connect AV control unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push "POWER" switch.
4. Check the signal between AV control unit harness connector
M42 terminals with CONSULT-III or oscilloscope.





Is the audio signal voltage as specified?
YES - Replace the suspect rear door speaker. Base Audio.
NO - Replace AV control unit. Base Audio.