Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS "Wiring Diagram".
1.CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM connector and combination switch connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connectors.
2.CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector and ground. 
Is the inspection result normal?
YES >> Repair harness or connectors.
NO >> GO TO 3.
3.CHECK BCM OUTPUT VOLTAGE
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES >> Replace combination switch.
NO >> Replace BCM. Refer to BCS "Removal and Installation".
Power supply and ground circuitDiagnosis Procedure Regarding Wiring Diagram information, refer to BCS "Wiring Diagram". 1.CHECK FUSES AND FUSIBLE LINK Check that the following fuses and fusible link are not blown.  ...

Diagnosis Procedure Regarding Wiring Diagram information, refer to BCS "Wiring Diagram". 1.CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect BCM and combinat ...
Rear door speaker
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CONNECTOR CHECK
Check the audio unit and speaker connectors for the following:
Proper connection
Damage
Disconnected or loose terminals
Is the inspection result normal?
YES >> G ...