DIFFERENTIAL & BEVEL GEAR GP 1598536 - Caterpillar

Min OFF Threshold" and the "Idle Validation Max ON Threshold" parameters - Proceed to Test Step 8.Test Step 4. Inspect Electrical Connectors and the Harness
Inspect the P1/J1 connectors, the harness and all of the connectors for the IVS. 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 suspect idle validation switch:
P1:18
P1:22
P1:40
Check the screw for the ECM connector for the correct torque of 6 N m (53 lb in).
Check the harness for abrasion and pinch points from the throttle switch to the ECM. Expected Result:All connectors, pins, and sockets are correctly connected and/or inserted and the harness is free of corrosion, abrasion, and pinch points.Results:
No harness or connector problems found - Proceed to Test Step 5.
Problems found with harness or connectors. - Repair: Perform the following repair:Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are correctly connected.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair eliminates the fault.STOPTest Step 5. Check the Location of the Fault
Disconnect the IVS harness connector.
Install a jumper wire between the IVS connections on the harness.
Turn the keyswitch to the ON position.
Install a jumper wire between the IVS connections on the harness. Use the electronic service tool in order to check for diagnostic codes.
Remove the jumper wire that is between the IVS connections on the harness. Use the electronic service tool in order to check for diagnostic codes. Expected Result:Connect the jumper wire. The IVS state on the electronic service tool