TRACK ROLLER GROUP 7M5116 - Caterpillar

Which Generate This Code:The Electronic Control Module (ECM) detects all of the following conditions:
Air inlet temperature is equal to 79 °C (174 °F) or greater than 79 °C (174 °F) for more than four seconds.
The engine has been running more than three minutes. This three minute delay begins once the engine speed is above zero rpm.System Response:The ECM will log the diagnostic event. The ECM will derate engine power by three percent for each degree celsius above 79 °C (174 °F). The maximum derate is 80 percent of full power. The ECM will restore full power when the air inlet temperature falls to 77 °C (171 °F) for 20 seconds.
Low power
There may be a problem with the aftercooler.
There may be a problem with the air inlet temperature sensor.Test Step 1. Check for Diagnostic Codes
Connect the Caterpillar Electronic Technician (Cat ET) to the service tool connector.
Turn the keyswitch to the ON position. The engine should be off.
Check for any active diagnostic codes or logged diagnostic codes.Expected Result:No diagnostic codes are present.Results:
OK - Proceed to Test Step 2.
Not OK - 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.STOPTest Step 2. Perform a Check of the Aftercooler
Perform a check of the aftercooler. Refer to the appropriate topic in Testing and Adjusting for possible causes.Expected Result:There are no problems with the aftercooler.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 - Repair: Repair the problem.Ensure that the repair eliminates the problem.STOP