RENR5042-02 143 Troubleshooting Section Results: OK – The connectors and wiring are OK. Proceed to Test Step 2. Not OK There is a problem in the connectors and/or wiring. Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled. Verify that the repair eliminates the problem. STOP. Test Step 2. Check for Active Diagnostic Codes A. Connect the electronic service tool to the service tool connector. B. Turn the keyswitch to the ON position. C. Monitor the active diagnostic code screen on the electronic service tool. Check and record any active diagnostic codes.
g01146110 Illustration 69 J61 and P61 terminals that are associated with the auxiliary temperature sensor Note: Wait at least 15 seconds in order for the diagnostic codes to become active. (9) Return (11) Auxiliary temperature D. Look for an 03 diagnostic code or an 04 diagnostic code. B. Thoroughly inspect the ECM connectors and the connectors for the suspect sensor. Refer to Troubleshooting, “Electrical Connectors - Inspect” for details. Expected Result: No diagnostic codes are active. C. Perform a 45 N (10 lb) pull test on each of the wires that are associated with the temperature sensors. Results: OK – No diagnostic codes are active. D.
Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque values. Repair: The problem may have been related to a faulty connection in the harness. Carefully reinspect the connectors and wiring. Refer to Troubleshooting, “Electrical Connectors - Inspect” for additional information. E. Check the allen head screw on the customer connector for the proper torque. Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque values. STOP. Not OK – An 03 diagnostic code is active at this time. Proceed to Test Step 3. F.
Check the harness and wiring for abrasions and for pinch points from each sensor to the ECM. Not OK – An 04 diagnostic code is active at this time. Proceed to Test Step 6. Expected Result: Test Step 3. Check the Pull-up Voltage at the Sensor Connector All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points. A. Disconnect the suspect sensor at the sensor connector.