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• When Monitored: • Set Condition: Possible Causes INTERMITTENT DTC (K31) FUEL PUMP CONTROL CIRCUIT SHORTED TO VOLTAGE (K31) FUEL PUMP CONTROL CIRCUIT OPEN OR HIGH RESISTANCE TOTALLY INTEGRATED POWER MODULE (TIPM) POWERTRAIN CONTROL MODULE (PCM) Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes >> Go to 2 No >> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) 2. (K31) FUEL PUMP CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Totally Integrated Power Module (TIPM) connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K31) Fuel Pump Control circuit in the Is there any voltage present? Yes >> Repair the (K31) Fuel Pump Control circuit for a short to voltage. Perform the PCM Verification Test Ver. 1 (Refer to 9 - No >> Go to 3 PM ENGINE ELECTRICAL DIAGNOSTICS - GPEC 9 - 567 |