Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK BLUETOOTH VOICE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M47 and Bluetooth control unit connector B33.
3. Check continuity between audio unit connector M47 and Bluetooth control unit connector B33.
4. Check continuity between audio unit connector M47 and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness or connectors.
2.CHECK BLUETOOTH VOICE SIGNAL GROUND CIRCUIT CONTINUITY
Check continuity between audio unit connector M47 and Bluetooth control unit connector B33.
Is inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK BLUETOOTH VOICE SIGNAL
1. Connect audio unit connector M47 and Bluetooth control unit connector B33.
2. Turn ignition switch to ACC.
3. Press switch.
4. Check signal between the terminals of audio unit connector M47.
Is the inspection result normal?
YES >> Replace Bluetooth control unit. Refer to AV "Removal and Installation".
NO >> Replace audio unit. Refer to AV "Removal and Installation".