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• When Monitored: • Set Condition: Possible Causes INTERMITTENT DTC (K370) FUEL PRESSURE SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE (K370) FUEL PRESSURE SOLENOID CONTROL CIRCUIT SHORTED TO THE (K369) FUEL PRESSURE (K370) FUEL PRESSURE SOLENOID CONTROL CIRCUIT OPEN OR HIGH RESISTANCE FUEL PRESSURE SOLENOID ENGINE CONTROL MODULE (ECM) 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, Clear DTCs in the Engine Control Module (ECM). With the scan tool, actuate the Fuel Pressure Solenoid at 100%. Monitor the scan tool for at least two minutes. 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. (K370) FUEL PRESSURE SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Fuel Pressure Solenoid connector. Disconnect the Engine Control Module (ECM) connector. Remove the ASD Relay from the IPM. Connect a jumper wire between cavity 30 and cavity 87 of the ASD Turn the ignition on. Measure the voltage of the (K370) Fuel Pressure Solenoid Control cir- Is there any voltage present? Yes >> Repair the (K370) Fuel Pressure Solenoid Control circuit for a short to voltage. Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Go to 3 9 - 1116 ENGINE ELECTRICAL DIAGNOSTICS - DIESEL LX |