The Electronic Control Module (ECM) detects the following condition:
- Engine coolant temperature that is greater than the default temperature of
102 °C (216 °F) for 2 seconds - The CID-FMI 110-03 and the CID-FMI 110-04 are not active.
System Response:
The ECM will log the event.
Possible Performance Effect:
- None
Troubleshooting:
- There may be a problem with the cooling system.
- There may be a problem with the coolant temperature sensor.
Test Step 1. Check for "ACTIVE" Diagnostic Codes.
- Start the Caterpillar Electronic Technician (ET).
- Turn the main power to the ON position.
- Check for any Active Diagnostic Codes or Logged Diagnostic Codes.
Expected Result:
There should be no diagnostic codes that are present.
Results:
- OK - There are no diagnostic codes that are present. Proceed to test step 2.
- Not OK - There are diagnostic codes that are present.
Repair: Repair the diagnostic codes that are present. Refer to the appropriate topic in the "Troubleshooting With a Diagnostic Code" section of this manual. Ensure that the repair eliminates the problem.
STOP
Test Step 2. Perform a Check of the Cooling System.
- Perform a check of the cooling system. Refer to the diagnostic procedure Troubleshooting, "Coolant Temperature is Too High" for possible causes.
Expected Result:
There are no problems with the cooling system.
Results:
- OK - There may be an intermittent problem.
Repair: Monitor the operation of the engine. Repair the problem. Ensure that the repair eliminates the problem.
STOP
- Not OK - There is a problem with the cooling system.
Repair: Repair the problem. Ensure that the repair eliminates the problem.
STOP