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AV STEERING SWITCH SIGNAL GND CIRCUIT AV-259 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P STEERING SWITCH SIGNAL GND CIRCUIT Description INFOID:0000000003765735 Transmits the steering switch signal to AV control unit. Diagnosis Procedure INFOID:0000000003765736 1. CHECK STEERING SWITCH SIGNAL GND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect AV control unit connector and spiral cable connector. 3. Check continuity between AV control unit harness connector and spiral cable harness connector. 4. Connect AV control unit connector. Is inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK SPIRAL CABLE Check spiral cable. Is inspection result normal? YES >> GO TO 3. NO >> Replace spiral cable. 3. CHECK GROUND CIRCUIT 1. Connect AV control unit connector. 2. Check continuity between AV control unit harness connector and ground. Is inspection result normal? YES >> GO TO 4. NO >> Replace AV control unit. 4. CHECK STEERING SWITCH Check steering switch. Refer to AV-260, "Component Inspection" . Is inspection result normal? YES >> INSPECTION END NO >> Replace steering switch. AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M127 15 M33 33 Existed AV control unit Ground Continuity Connector Terminal M127 15 Existed |