LINES GP-FUEL 2964656 - Caterpillar

Illustration 3 g01068721
Terminal locations at the ECM
Thoroughly inspect the J1/P1 ECM connector, the firewall bulkhead connector and the terminals for the following switches in the connectors:
J1/P1-29 (Sensor Common)
J1/P1-25 & 15 (Set/Resume Switch)
J1/P1-20 (Cruise Control On/Off Switch)Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the switches.Refer to Illustration 3.
Check the allen head screws for each of the ECM connectors for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque value.
Check the harness and wiring for abrasion and for pinch points from the sensor to the ECM.Expected Result:All connectors, pins and sockets are completely coupled and/or inserted and the harness and wiring should be free of corrosion, of abrasion or of pinch points.Results:
OK - Proceed to Test Step 5.
Not OK - 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.STOPTest Step 5. Check the Switch Circuit at the ECM
Table 1
Table for Status of the Cruise Control Switch Input    
Condition of