AUDIO UNIT : Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK FUSE
Check that the following fuses are not blown. 
Are the fuses blown?
YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M46.
3. Check voltage between audio unit connector M46 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M47.
3. Check continuity between audio unit connectors and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair or replace harness or connectors.
BLUETOOTH CONTROL UNIT : Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK FUSE
Check that the following fuses are not blown. 
Are the fuses blown?
YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector B33.
3. Check voltage between Bluetooth control unit connector B33 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between Bluetooth control unit connector B33 and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair or replace harness or connectors.
Diagnosis and repair workflowWork Flow OVERALL SEQUENCE DETAILED FLOW 1.GET INFORMATION FOR SYMPTOM Get detailed information from the customer about the symptom (the condition and the environment when the incident/ma ...

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 connect ...
Power supply and ground circuit
Diagnosis Procedure
1.CHECK GROUND CONNECTION
Turn ignition switch OFF.
Check ground connection E. Refer to Ground Inspection in GI, "Circuit
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ECM G ...
Hazard function
Description
Perform answer-back for each operation with number of blinks.
Component Function Check
1.CHECK FUNCTION
Check hazard warning lamp ("FLASHER") in Active Test.
Is the inspection result normal?
YES >> Hazard warning lamp circuit is OK.
NO >> Refer to DLK "Diagnosis ...