PREPARATION
Special Service Tools
The actual shapes of the tools may differ from those illustrated here.

Commercial Service Tools

Precaution
Symptom diagnosisRGB digital image signal circuit
Description
Transmit the image displayed with AV control unit with RGB digital image
signal to the display unit.
Diagnosis Procedure
1.CHECK CONTINUITY RGB DIGITAL IMAGE SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect display unit connector M151 and AV control unit
connector
...
Power supply and ground circuit
BCM
BCM : Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect BCM.
Check voltage between BCM harness connector and ground.
3. CHECK GROUND CIRCUIT
Che ...
Rear door speaker
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio signals before sending them to the rear door
speakers using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and speaker c ...