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11. APP SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT Turn the ignition off. Disconnect the APP Sensor harness connector. Disconnect the ECM harness connectors. Measure the resistance between the APP Sensor Signal circuit and the Is the resistance below 1000 ohms? Yes >> Repair the APP Sensor Signal and Sensor Ground circuits for a short together. Perform the ECM Verification Test Ver. 1 (Refer to 9 - No >> Go To 12 12. APP SENSOR SIGNAL 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 Signal circuit. Is the voltage above 1.0 volt? Yes >> Repair the APP Sensor Signal circuit for a short to voltage. Perform the ECM Verification Test Ver. 1 (Refer to 9 - No >> Replace and program the Engine Control Module in accor- dance with the Service Information. Perform the ECM Verification Test Ver. 1 (Refer to 9 - 9 - 1386 ENGINE DIESEL DIAG KJ |