Diagnosis Procedure
- CHECK BOSE AMP. POWER SUPPLY AND GROUND CIRCUIT
Check BOSE amp. power supply and ground circuit. Refer to DIAGNOSIS PROCEDURE .
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace malfunctioning parts.
- CHECK AV COMMUNICATION CIRCUIT
- Turn ignition switch OFF.
- Disconnect display control unit harness connector and BOSE amp. harness connector.
- Check the continuity between display control unit harness connector and BOSE amp. harness connector.
Display control unit BOSE amp. Continuity Connector Terminal Connector Terminal M100 16 B55 54 Existed 28 74
Is the inspection result normal?
YES
Replace BOSE amp. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace malfunctioning parts.