Caterpillar — C11, C13, C15 and C18 Industrial Engines

RENR5042-02 79 Troubleshooting Section (Table 15, contd) (1) The maps may be different. The maps depend on the model of the engine. (2) The engine must be equipped with the appropriate sensor. i02264589 E057 Low Engine Coolant Level Derate Results: OK The coolant level is low. Repair: Check the cooling system for leaks. Repair any problems that are found. Refill the cooling system to the proper level. SMCS Code: 1395-038-LO Conditions Which Generate This Code: The coolant level is below the coolant level sensor. STOP. System Response: Not OK – The coolant level is not low. Repair: There may be a problem with the coolant level sensor.

Refer to the diagnostic functional test Troubleshooting, “Coolant Level Sensor Circuit - Test” in order to verify that the coolant level sensor is operating correctly. The ECM will log the event. Possible Performance Effect: Engine power is reduced. Ensure that any repairs eliminate the problem. Troubleshooting: STOP. The coolant level is most likely low. There may be a problem with the coolant level sensor. i02274242 E058 Low Engine Coolant Level Shutdown Check the Coolant Level SMCS Code: 1395-038-LO Pressurized System: Hot coolant can cause seri- ous burns. To open the cooling system filler cap, stop the engine and wait until the cooling system components are cool.

Loosen the cooling system pressure cap slowly in order to relieve the pres- sure. Conditions 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 code can be found in Troubleshooting, “Event Codes”. A. Stop the engine. System Response: B. After allowing the engine to cool, check the coolant level. Refer to the Operation and Maintenance Manual for the proper procedure. The event code will be logged. Possible Performance Effect: E058 (Shutdown) Expected Result: The engine will shut down. The coolant level is low. Troubleshooting: The coolant level is most likely low.

Trip Points for the Monitoring System Parameter Event Code Action Default Value Time Delay in Seconds Set Points Range Default Range Default High Engine Air Inlet Temperature E539 Warning On None 8 None 75 °C (167 °F) Derate 1 to 54 8 79 °C (174 °F)