3508B Engine for 854G Wheel Dozers and 992G Wheel Loaders Caterpillar


E017 High Engine Coolant Temperature Warning

Usage:

854G 1JW
Conditions Which Generate This Code:

The Electronic Control Module (ECM) detects all of the following conditions:

  • Engine coolant temperature is greater than 107 °C (225 °F) for more than 4 seconds.

  • 110-03 Engine Coolant Temperature open/short to +batt is not active.

  • 110-04 Engine Coolant Temperature short to ground is not active.

System Response:

The ECM will log the warning.

  • Low power

  • There may be a problem with the cooling system.

  • There may be a problem with the coolant temperature sensor.

Test Step 1. Check for Diagnostic Codes.

  1. Connect the Caterpillar Electronic Technician to the service tool connector.

  1. Turn the keyswitch to the ON position. The engine should be OFF.

  1. 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.

  1. 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: If the problem is intermittent, refer to the diagnostic functional test Troubleshooting, "Inspecting Electrical Connectors".

    Stop.

  • Not OK - A problem was found with the cooling system.

    Repair: Repair the problem.Ensure that the repair eliminates the problem.

    Stop.

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