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AV CONTROL SIGNAL CIRCUIT AV-177 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P CONTROL SIGNAL CIRCUIT Description INFOID:0000000001559044 TEL adapter unit identifies the vehicle model according to the control signal and performs the control. Diagnosis Procedure INFOID:0000000001559045 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 terminals 23, 24 and ground. Is the inspection result normal? YES >> Replace TEL adapter unit. NO >> Repair harness or connector. 23, 24 - Ground : Continuity should exist. |