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4. FUEL QUANTITY SOLENOID CIRCUIT(S) SHORTED TO VOLTAGE Turn the ignition off. Disconnect the ECM harness connectors. Disconnect the Fuel Quantity Solenoid harness connector. Remove the ASD Relay. Connect a jumper wire between cavity 30 and cavity 87 of the ASD Turn the ignition on. Measure the voltage each of the Fuel Quantity Solenoid circuits. Is the voltage below 1.0 volt for each measurement? Yes >> Go To 5 No >> Repair the circuit(s) that measured above 1.0 volts for a short to voltage. Perform the ECM Verification Test Ver. 1 (Refer to 9 - 5. FUEL QUANTITY SOLENOID Turn the ignition off. Disconnect the Fuel Quantity Solenoid harness connector. Turn the ignition on. With the scan tool, erase ECM DTCs. Monitor the scan tool for ECM DTCs. NOTE: The scan tool should display P0090-FUEL QUANTITY SOLE- Connect a jumper wire between cavity 1 and cavity 2 of the Fuel Quan- Turn the ignition on. With the scan tool, erase ECM DTCs. Monitor the scan tool for ECM DTCs. NOTE: The scan tool should display P0092-FUEL QUANTITY SOLE- Does the scan tool display the appropriate DTC for each condition? Yes >> Replace the Fuel Quantity Solenoid in accordance with the Service Information. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). No >> Replace and program the Engine Control Module in accordance with the Service Information. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). 9 - 886 ENGINE DIESEL DIAG KJ |