ACTUATOR GP-PUMP 1804985 - Caterpillar

Which Generate This Code:The Electronic Control Module (ECM) detects the following conditions: 3176C Engines
Air inlet temperature is greater than 100 °C (212 °F) for more than four seconds.
172-03 diagnostic code is not active.
172-04 diagnostic code is not active. 3406E Engines
Air inlet temperature is greater than 105 °C (221 °F) for more than four seconds.
172-03 diagnostic code is not active.
172-04 diagnostic code is not active.System Response:The ECM will log the warning.
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 Caterpillar Electronic Technician (ET) to the service tool connector.
Turn the keyswitch to the ON position.
Check for any active diagnostic codes or for logged diagnostic codes.Expected Result:No diagnostic codes are present.Results:
OK - No diagnostic codes are present. Proceed to Test Step 2.
Not OK - A diagnostic code is 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 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 are no problems with the aftercooler. However, there may be an intermittent problem.Repair: Monitor the operation of the engine.Repair any problem.Ensure that the repair eliminates the problem. Stop.
Not OK - There is a problem with the aftercooler.Repair: Repair the problem.Ensure that the repair eliminates the problem. Stop.