DRIVE GP-FINAL 2966218 - Caterpillar

screw) for the proper torque. Refer to service Troubleshooting, "Electrical Connectors - Inspect".
Check the harness and the wiring for abrasion and for pinch points.Expected Result:All connectors, pins, and sockets are correctly coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The harness 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 correctly coupled.Perform the "Wiggle Test" on the electronic service tool.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair eliminates the fault.STOPTest Step 2. Check for Active Diagnostic Codes
Connect the electronic service tool to the diagnostic connector.
Restore the electrical power to the ECM.
Monitor the active diagnostic code screen on the electronic service tool. Check and record any active diagnostic codes.Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Determine if the fault is related to an open circuit diagnostic code (-05) or a short circuit diagnostic code (-06).Expected Result:No diagnostic codes are active.Results:
OK - No diagnostic codes are active.Repair: The fault may have been related to a faulty connection in the harness. Carefully reinspect the connectors and wiring. Refer to service Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - A short circuit diagnostic code (-06) is active at this time. Proceed to Test Step 3.
Not OK - An open circuit diagnostic code (-05) is active at this time. Proceed to Test Step 4.Test Step 3. Disconnect the Connector for the Suspect Solenoid in Order to Create an Open Circuit
Remove the electrical power from the ECM.
Disconnect the connector for the suspect solenoid.
Restore the electrical power to the ECM. Wait at least 30 seconds for activation of the diagnostic codes.
Access the "Active Diagnostic Code" screen on the electronic service tool. Check for an active open circuit diagnostic code (-05) for the suspect solenoid.
Remove the electrical power from the ECM.Expected Result:An open circuit diagnostic code (-05) is now active for the suspect solenoid.Results:
OK - A short circuit diagnostic code (-06) was active before disconnecting the connector. An open circuit diagnostic code (-05) became active after disconnecting the connector.Repair: Temporarily connect a new solenoid to the harness, but do not install the new solenoid. Use the electronic service tool to verify that the repair eliminates the fault. If there are no active diagnostic codes for the solenoid, permanently install the new solenoid.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair eliminates the fault.STOP
Not OK - There is a short circuit between the solenoid harness connector and the ECM. Leave the solenoid connector disconnected. Proceed to Test Step 5.Test Step 4. Create a Short at the Connector for the Suspect Solenoid
Remove the electrical power from the ECM.
Fabricate a jumper wire with Deutsch