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BCS-78 < DTC/CIRCUIT DIAGNOSIS > COMBINATION SWITCH INPUT CIRCUIT COMBINATION SWITCH INPUT CIRCUIT Diagnosis Procedure INFOID:0000000006274843 1. CHECK INPUT 1 - 5 CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect BCM and combination switch connectors. 3. Check continuity between BCM harness connector and combination switch harness connector. Does continuity exist? YES >> GO TO 2. NO >> Repair harnesses or connectors. 2. CHECK INPUT 1 - 5 CIRCUIT FOR SHORT Check for continuity between BCM harness connector and ground. Does continuity exist? YES >> Repair harnesses or connectors. NO >> GO TO 3. 3. CHECK BCM INPUT SIGNAL 1. Connect BCM and combination switch connectors. 2. Turn ON any switch in the system that is malfunction. 3. Check voltage between BCM harness connector and ground. Is the measurement value normal? Yes >> Replace BCM. Refer to BCS-81, "Removal and Installation" System BCM Combination switch Continuity Connector Terminal Connector Terminal INPUT 1 M68 6 M27 12 Existed INPUT 2 5 14 INPUT 3 4 5 INPUT 4 3 2 INPUT 5 2 8 System BCM Ground Continuity Connector Terminal INPUT 1 M68 6 Not existed INPUT 2 5 INPUT 3 4 INPUT 4 3 INPUT 5 2 System Terminals Voltage (Approx.) (+) ( − ) BCM Ground Connector Terminal INPUT 1 M68 6 Refer to . INPUT 2 5 INPUT 3 4 INPUT 4 3 INPUT 5 2 |