|
|
|
• When Monitored: • Set Condition: Possible Causes (N1) FUEL PUMP CONTROL OUTPUT CIRCUIT SHORTED TO GROUND FUEL PUMP TIPM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. DTC IS ACTIVE NOTE: If P0627, P0628 or P0629 has set along with this DTC, diagnose those DTC(s) first before continuing. 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. FUEL PUMP MODULE Turn the ignition off. Disconnect the Fuel Pump Module harness connector. Ignition on, engine not running. Using the scan tool under the TIPM Actuators, actuate the Fuel Pump. With a 12-volt test light connected to ground, probe the (N1) Fuel Pump NOTE: The test light should be illuminated and bright. Compared Does the test light illuminate brightly and flash on and off? Yes >> Replace the Fuel Pump Module in accordance with the Ser- vice Information. Perform the POWERTRAIN VERIFICATION TEST. (Refer to No >> Go To 3 PM ENGINE ELECTRICAL DIAGNOSTICS - GPEC 9 - 623 |