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B1240-STEP SWITCH STUCK (CONTINUED) 2. CHECK OPERATION OF THE UPPER SWITCH BANK Turn the ignition off. Disconnect the Upper Switch Bank Harness Connector. Turn the ignition on. Wait 30 seconds. With the scan tool, read Instrument Cluster DTCs. Does the scan tool display DTC: B1240-STEP SWITCH STUCK? Yes >> Go To 3 No >> Replace the Upper Switch Bank in accordance with the service information. Perform BODY VERIFICATION TEST VER 1. (Refer to 8 - CONTROL MODULES - STANDARD PROCEDURE) 3. CHECK THE (G103) STEP SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Measure the resistance of the (G103) Step Switch Input circuit for a Is the resistance below 10K ohms? Yes >> Repair the (G103) Step Switch Input circuit for a short to ground. Perform BODY VERIFICATION TEST VER 1. (Refer to 8 - CONTROL MODULES - STANDARD PROCEDURE) No >> Replace the Instrument Cluster in accordance with the ser- vice information. Perform BODY VERIFICATION TEST VER 1. (Refer to 8 - CONTROL MODULES - STANDARD PROCEDURE) 8J - 10 INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS WK |