CHANNEL AS- 4826293 - Caterpillar

Table 1
Event Code    
Code and Description     Conditions which Generate this Code     System Response    
E059(1) Low Engine Coolant Level Warning     The engine coolant flow is lost.     The code is logged.    Probable Causes
Low coolant level and/or coolant leakage
Coolant flow switchRecommended Actions
Low Coolant Level and/or Coolant Leakage
Inspect the coolant level. If necessary, add coolant.
Check for the correct mixture of antifreeze and water. Refer to Operation and Maintenance Manual.
Check the cooling system for leaks. Repair any leaks immediately.
Check for air in the cooling system. Refer to Systems Operation/Testing and Adjusting for the correct procedure.Coolant Flow Switch
If an electrical problem with the coolant level sensor is suspected, refer to Troubleshooting, "Coolant Flow - Test".