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AV STEERING SWITCH SIGNAL B CIRCUIT AV-63 < DTC/CIRCUIT DIAGNOSIS > [BASE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P STEERING SWITCH SIGNAL B CIRCUIT Description INFOID:0000000009163286 Transmits the steering switch signal to AV control unit. Diagnosis Procedure INFOID:0000000009163287 1. CHECK STEERING SWITCH SIGNAL B CIRCUIT 1. Disconnect AV control unit connector and spiral cable connector. 2. Check continuity between AV control unit harness connector and spiral cable harness connector. 3. Check continuity between AV control unit harness connector and ground. Is the inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK SPIRAL CABLE Check spiral cable. YES >> GO TO 3. NO >> Replace spiral cable. 3. CHECK AV CONTROL UNIT VOLTAGE 1. Connect AV control unit connector and spiral cable connector. 2. Turn ignition switch ON. 3. Check voltage between AV control unit harness connector. Is the inspection result normal? YES >> GO TO 4. NO >> Replace AV control unit. 4. CHECK STEERING SWITCH 1. Turn ignition switch OFF. 2. Check steering switch. Refer to . Is the inspection result normal? YES >> INSPECTION END NO >> Replace steering switch. AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M201 16 M36 31 Existed AV control unit Ground Continuity Connector Terminal M201 16 Not existed (+) ( − ) Voltage (Approx.) AV control unit AV control unit Connector Terminal Connector Terminal M201 16 M201 15 5.0 V |