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5. VERIFY APP SIGNAL CIRCUIT Turn the ignition off. Disconnect the APP Sensor harness connector. Connect a jumper wire between APP Sensor Signal circuit and the With the scan tool, read the PEDAL OUTPUT VOLTS. Does the scan tool display between 4.0 and 5.5 volts? Yes >> Go To 6 No >> Go To 9 6. APP SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the APP Sensor harness connector. Disconnect the ECM harness connectors. Remove the ASD Relay. Connect a jumper wire between cavity 30 and cavity 87 of the ASD Turn the ignition on. Measure the voltage of the APP Sensor Ground circuit. Is the voltage above 1.0 volt? Yes >> Repair the App Sensor Ground circuit for a short to voltage. Perform ROAD TEST VERIFICATION - VER-2. No >> Go To 7 9 - 1374 ENGINE DIESEL DIAG KJ |