With Navigation

U190C AudioPilot(tm) MICROPHONE

DTC Logic








Diagnosis Procedure


1. CHECK CONTINUITY BETWEEN BOSE AMP. AND MICROPHONE FOR AUDIOPILOT(tm) CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BOSE amp. connector and microphone for AudioPilot(tm) connector.
3.Check continuity between BOSE amp. harness connector and microphone for AudioPilot(tm) 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 AudioPilot(tm) connector.
2.Check signal between BOSE amp. harness connector.





Is the inspection result normal?
YES- Replace BOSE amp. With Navigation.
NO- Replace microphone for AudioPilot(tm). With Navigation.