Diagnosis Procedure
- CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT (TEL ADAPTER UNIT TO AUDIO UNIT)
- Turn ignition switch OFF.
- Disconnect audio unit connector and TEL adapter unit connector.
- Check continuity between audio unit harness connector and TEL adapter unit harness connector.
Audio unit TEL adapter unit Continuity Connector Terminal Connector Terminal M46 15 B54 19 Existed Is inspection result normal?
YES: GO TO 2.
NO: Repair harness or connector.
- CHECK GROUND CIRCUIT
- Connect audio unit connector.
- Check continuity between audio unit harness connector and ground.
Audio unit Ground Continuity Connector Terminal M46 15 Existed Is inspection result normal?
YES: Replace TEL adapter unit. Refer to "EXPLODED VIEW ".
NO: Replace audio unit. Refer to "EXPLODED VIEW ".