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AV STEERING SWITCH SIGNAL B CIRCUIT AV-545 < DTC/CIRCUIT DIAGNOSIS > [NAVIGATION (TWIN MONITOR)] C D E F G H I J K L M B A O P STEERING SWITCH SIGNAL B CIRCUIT Description INFOID:0000000005474914 Transmits the steering switch signal to AV control unit. Diagnosis Procedure INFOID:0000000005474915 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. Refer to . 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. Refer to 4. CHECK STEERING SWITCH 1. Turn ignition switch OFF. 2. Check steering switch. Refer to AV-545, "Component Inspection" Is the inspection result normal? YES >> INSPECTION END NO >> Replace steering switch. Refer to Component Inspection INFOID:0000000005474916 Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17. AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M208 16 M36 31 Existed AV control unit Ground Continuity Connector Terminal M208 16 Not existed (+) ( − ) Voltage (Approx.) AV control unit AV control unit Connector Terminal Connector Terminal M208 16 M208 15 5.0 V |