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U190C AUTOPILOT MICROPHONE





DTC Logic









Diagnosis Procedure
1.CHECK CONTINUITY BETWEEN BOSE AMP. AND MICROPHONE FOR AUTOPILOT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE amp. connector and microphone for Autopilot connector. 3. Check continuity between BOSE amp. harness connector and microphone for Autopilot harness connector.





4. Check continuity between BOSE amp. harness connector and ground.





Is the inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK MICROPHONE SIGNAL
1. Connect BOSE amp. connector and microphone for Autopilot connector. 2. Check signal between BOSE amp. harness connector.





Is the inspection result normal?
YES - Replace BOSE amp. Without Navigation.
- Replace microphone for Autopilot. Without Navigation.
NO