SEAL 5P0064 - Caterpillar

EID E279Conditions Which Generate This Code:The Electronic Control Module (ECM) detects a problem with the engine's cooling system. Information on default settings and ranges for this event can be found in Troubleshooting, "Event Codes".System Response:The event code will be logged.Possible Performance Effect:NoneTroubleshooting:There may be a problem with the engine's cooling system.Test Step 1. Check the Engine's Cooling System
Verify that the cooling system is filled to the proper level. If the coolant level is too low, air will get into the cooling system. Air in the cooling system will cause a reduction in coolant flow.
Check the radiator, the SCAC cooling system or the heat exchanger for a restriction to coolant flow.
Check for debris or damage between the fins of the radiator core. Debris between the fins of the radiator core restricts air flow through the radiator core.
Check internally for debris, dirt, or deposits on the radiator core. Debris, dirt, or deposits will restrict the flow of coolant through the radiator.
Check the mixture of antifreeze and water. Make sure that the recommendations in the Operation and Maintenance Manual are followed.
Check the water temperature regulator. A water temperature regulator that does not open, or a water temperature regulator that only opens part of the way can cause overheating.
Check the water pump. A water pump with a damaged impeller does not pump enough coolant. Remove the water pump and check for damage to the impeller.
If the cooling