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2. SENSOR GROUND OPEN Turn the ignition off. Disconnect both S/C Switch harness connectors. Disconnect the ECM harness connectors. Measure the resistance of the Sensor Ground circuit between each S/C Is the resistance below 10.0 ohms for each measurement? Yes >> Go To 3 No >> Repair the Sensor Ground circuit for an open. Perform the ECM Verification Test Ver. 1 (Refer to 9 - 3. ECM - SENSOR GROUND OPEN Turn the ignition off. Disconnect one of the S/C Switch harness connectors. With the scan tool, read the S/C Switch Voltage. While monitoring the scan tool, connect a jumper wire between the S/C Does the scan tool display below 0.1 volt with the jumper wire Yes >> Replace the Speed Control Switches. 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 - 1090 ENGINE DIESEL DIAG KJ |