162 RENR5042-02 Troubleshooting Section Expected Result: Verify that the repair eliminates the problem. The maintenance due lamp turns on and the maintenance due lamp turns off per the above description. STOP. Test Step 3. Test the Lamp Circuit Results: A. Disconnect the P1 connector. OK The maintenance due lamp appears to operating correctly at this time. STOP. B. Connect a jumper wire between wire F424-YL in terminal P1-30 and engine ground. Not OK The maintenance due lamp is not functioning correctly. Proceed to Test Step 2. C. Turn the keyswitch to the ON position. Observe the lamp. Test Step 2. Inspect Electrical Connectors and Wiring D. Remove the jumper wire and observe the lamp. A.
Turn the keyswitch to the OFF position. Expected Result: B. Thoroughly inspect the J61/P61 customer connector, and J1/P1 ECM connector. Refer to Troubleshooting, “Electrical Connectors - Inspect” for details. The maintenance due lamp turns on while the jumper is connected. The maintenance due lamp turns off when the jumper is removed. Results: C. Perform a 45 N (10 lb) pull test on each of the wires that are associated with the maintenance due lamp. OK The maintenance due lamp circuit is functioning properly. Proceed to Test Step 6. D. Check the allen head screw on the customer connector for the proper torque.
Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque value. Not OK The lamp did not turn on. The lamp circuit is not functioning properly. Proceed to Test Step 4. Test Step 4. Test the Circuit at the Maintenance Due Lamp E. Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque values. A. Disconnect wire F424-YL from the lamp. B. Connect a jumper wire between the lamp’s empty terminal and engine ground. F. Check the harness and wiring for abrasions and for pinch points from the battery to the ECM. C. Turn the keyswitch to the ON position. Observe the lamp.
Expected Result: D. Disconnect the jumper wire and observe the lamp. All connectors, pins, and sockets are completely coupled and/or inserted, and the harness and wiring are free of corrosion, of abrasion or of pinch points. Expected Result: The lamp turns on while the jumper is connected. The lamp turns off when the jumper is disconnected. Results: OK – The connectors and wiring are OK. Proceed to Test Step 3. Results: OK The circuit for the lamp is functioning properly. 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. Repair: Repair wire F424-YL between the lamp and terminal P1-30. STOP.