HOSE 3112768 - Caterpillar

Test Step 1. Inspect Electrical Connectors and Wiring
Turn the keyswitch to the OFF position.
Thoroughly inspect the ECM connector J1/P1. Inspect all of the other connectors. Refer to Troubleshooting, "Inspecting Electrical Connectors" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the ECM connector (allen head screw) for the proper torque of 6.0 N m (55 lb in).
Check the customer connector (allen head screw) for the proper torque of 2.25 0.25 N m (20 2 lb in).
Check the harness and the wiring for abrasion and for pinch points.Expected Result: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.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 completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check the Status of the Ground Level Shutdown Switch on Cat ET
Connect Cat ET to the cab service tool connector J42. Start Cat ET.
Turn the keyswitch to the ON position.
Operate the ground level shutdown switch. Observe the status for the ground level shutdown switch on Cat ET.Expected Result:The status of the ground level shutdown switch reads "ON" with the ground level shutdown switch in the SHUTDOWN position. The status of the ground level shutdown switch reads "OFF" when the ground level shutdown switch is in the RUN position.Results:
OK - The status of the ground level shutdown switch reads "ON" with the ground level shutdown switch in the SHUTDOWN position. The status of the ground level shutdown switch reads "OFF" when the ground level shutdown switch is in the RUN position. The ground level shutdown switch is operating normally.Repair: There may be an intermittent problem. If the problem is intermittent, refer to Troubleshooting, "Inspecting Electrical Connectors".STOP
Not OK - The status of the ground level switch does not read "ON" with the ground level shutdown switch in the SHUTDOWN position. The status of the ground level shutdown switch does not read "OFF" when the ground level shutdown switch is in the RUN position. The ground level shutdown switch is not operating normally. Proceed to Test Step 3.Test Step 3. Short the Wires together at the Ground Level Shutdown Switch
Turn the keyswitch to the OFF position.
Record the position of the wiring on the ground level shutdown switch before removing the wires.
Disconnect the wires from the ground level shutdown switch.
Create a short circuit at the ground level shutdown switch between the wire F716-WH and the digital return wire 998-BR. Leave the wire F715-PU open.
Turn the keyswitch to the ON position.
Observe the status of the ground level shutdown switch onCat ET.
Turn the keyswitch to the OFF position.
Remove the short between the wire F716-WH and the