COOLER GP-HYDRAULIC OIL 7E4635 - Caterpillar

Illustration 1 g00825788
Schematic of the Rocker Switch (Ride Control)This diagnostic code is associated with the Rocker Switch (Ride Control). The switch is connected to two inputs of the ECM. Both contacts are closed when the switch is in the OFF position. Wire G766-GN is open and wire G767-WH is closed, when the ride control switch is in the ON position. Wire G767-WH is open and wire G766-GN is closed, when the ride control switch is in the AUTO position.This FMI 03 means that the ECM has determined that both contacts are open.Note: The following test procedure may create other diagnostic codes. Ignore these diagnostic codes and clear the diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 0367 FMI 03 is active before performing this procedure.Test Step 1. CHECK THE GROUND CIRCUIT OF THE SWITCH IN THE HARNESS
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness connector(s) from the ECM.
Measure the resistance between contact J1-16 (wire 962-OR) of the machine harness for the ECM and the contact 2 (wire 962-OR) .Expected Result:The resistance is less than 5 ohms.Results:
OK - The resistance is less than 5 ohms. The circuit is correct. Proceed to Test Step 2.
NOT OK - The resistance is greater than 5000 ohms. The circuit is open. The machine harness has failed.Repair: Repair the machine harness or replace the machine harness. Stop.Test Step 2. CHECK THE SWITCH CIRCUITS FOR A SHORT TO THE +BATTERY CIRCUIT
The machine harness connector(s) remains disconnected from the ECM.
The disconnect switch and the key start switch remain in the OFF position.
Disconnect contact 3 (wire G766-GN) and contact 4 (wire G767-WH) from the connector of the switch.
At the machine harness connector for the ECM, measure the resistance from contact J1-21 (wire G766-GN) and contact J1-22 (wire G767-WH) of the machine harness to all the contacts that are used in the machine harness connectors for the ECM.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The harness is correct. Proceed to Test Step 3.
NO - One or more of the measurements were less than 5 ohms. There is a short in the machine harness.Repair: The short is between wire G766-GN and the circuit with the lowest resistance measurement or the short is between wire G767-WH and the circuit with the lowest resistance measurement. Repair the machine harness or replace the machine harness. Stop.Test Step 3. CHECK THE SWITCH CIRCUITS IN THE HARNESS
The machine harness remains disconnected from the ECM and the switch.
At the harness connector for the switch, connect a jumper wire between contact 3 (wire G766-GN) and contact 4 (wire G767-WH).
At the harness connector for the ECM, measure the resistance from contact J1-27 (wire C977-BU) to contact J1-55 (wire C977-BU).Expected Result:The resistance is less than 5 ohms.Results:
OK - The resistance is less than 5 ohms. Proceed to Test Step 4.
NOT OK - The resistance is greater than 5000 ohms. The circuit