RADIATOR & HYD OIL COOLER GP 3786176 - Caterpillar

Check the harness and the wiring for abrasion and for pinch points. Expected Result:All connectors, pins, and sockets are coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The connectors 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 coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check for Active Diagnostic Codes for the SMMS
Connect Cat ET to the service tool connector.
Restore electrical power to the ECM.
Monitor the active diagnostic code screen on Cat ET. Check for an active -5 diagnostic code for the SMMS. Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Proceed to the "Diagnostic Overrides" screen on Cat ET. Activate the override for the starting system.
Monitor the active diagnostic code screen on Cat ET. Check for a -6 diagnostic code for the SMMS. Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Deactivate the override for the starting system. Expected Result:No diagnostic codes are active.Results:
OK - No diagnostic codes are active, but a problem is suspected in the starting system. Proceed to Test Step 6.
Not OK - A -6 diagnostic code is active at this time. Proceed to Test Step 3.
Not OK - A -5 diagnostic code is active at this time. Proceed to Test Step 4.Test Step 3. Create an Open at the Coil of the SMMS
Disconnect the wires from terminal 1 and terminal 2 on the SMMS or disconnect the connectors for the SMMS, if equipped. Ensure that the wires are isolated from engine ground and from sources of electrical power.
Monitor the active diagnostic code screen on Cat ET. Check for a -5 diagnostic code for the SMMS. Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Proceed to the "Diagnostic Overrides" screen on Cat ET. Activate the override for the starting system.
Monitor the active diagnostic code screen on Cat ET. Check for a -6 diagnostic code for the SMMS. Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Deactivate the override for the starting system. Expected Result:A -5 diagnostic code is now active for the starting motor system.Results:
OK - A -5 diagnostic code became active after creating the open at the SMMS. The wires from the ECM to the SMMS are OK.Repair: The problem may be in the coil of the SMMS. Install a new SMMS. Clear any logged diagnostic codes.STOP
Not OK - A -6 diagnostic code remains active. There is a short between the SMMS and the ECM. Leave the wires for the SMMS disconnected. Proceed to Test Step 5.Test Step 4. Create a Short at the Coil of the SMMS
Install a jumper wire between terminal 1 and terminal 2 at the