Control Signal Circuit Bose Audio Without Navigation

CONTROL SIGNAL CIRCUIT





Description
TEL adapter unit identifies the vehicle model according to the control signal and performs the control.




Diagnosis Procedure
1.CHECK CONTINUITY CONTROL SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TEL adapter unit connector.
3. Check continuity between TEL adapter unit harness connector and ground.





Is the inspection result normal?
YES - Replace TEL adapter unit. Removal And Installation Bose Audio Without Navigation.
NO - Repair harness or connector.