CASE & PARTS GP-PLANETARY 4183805 - Caterpillar

for Connector Damage.
Disconnect main power.
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. 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 pinch points.Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted, and the harness and wiring should be free of corrosion, abrasion or pinch points.Results:
OK - The connectors and wiring are okay. Proceed to test step 2.
Not OK - The connectors and/or wiring need repair.Repair: Repair the connectors and/or wiring or replace the connectors and/or wiring. Stop.Test Step 2. Check the Supply Voltage to the ECM while the Local Emergency Stop Switch is Active.
Install a 40-pin Breakout T between the ECM connector, P1, and J1.
Connect a voltmeter to pin 5 and pin 6 on the breakout T.
Turn the circuit breaker for the battery to the ON position.
Check that no breakers are tripped.
Turn the ECS to the STOP position.
Activate the Emergency Stop switch on the Electronic Instrument Panel. If multiple Emergency Stop switches have been installed, ensure that any other Emergency Stop switch has not been activated.
Monitor the voltage on the voltmeter.
Turn the ECS to the OFF/RESET position.Expected Result:The voltage should measure 0 VDC when the Emergency Stop switch is activated.Results:
OK - The voltage measures 0 VDC when the Emergency Stop switch is activated. Proceed to test step 3.
Not OK - The voltage does not measure 0 VDC when the Emergency Stop switch is activated. Proceed to test step 4.Test Step 3. Check the Supply Voltage to the ECM while the Local Emergency Stop Switch is not Active.
Connect a voltmeter to pin 5 and pin 6 on the breakout T.
Turn the ECS to the STOP position.
Deactivate the Emergency Stop switch on the Electronic Instrument Panel. If multiple Emergency Stop switches have been installed, ensure that any other Emergency Stop switch has not been activated.
Monitor the voltage on the voltmeter.
Turn the ECS to the OFF/RESET position.Expected Result:The voltage should measure