BEARING-SELF-ALIGNING 8G4371 - Caterpillar

Conditions Which Generate This Code:The coolant temperature is equal to 111 °C (232 °F) or above 111 °C (232 °F). For emergency vehicles, the coolant temperature is equal to 116 °C (241 °F) or above 116 °C (241 °F).System Response:"DIAG" will be displayed next to the status for "Engine Coolant Temperature" on the Caterpillar Electronic Technician (Cat ET). The check engine lamp and the warning lamp will illuminate.Customer passwords are required to clear this diagnostic code.The engine will be derated. The engine power and the vehicle speed will be limited. The amount of derate depends on the engine coolant temperature. If the "Engine Monitoring" parameter is programmed to "Shutdown", the engine will be shutdown once this code has been active for 20 seconds.Note: If the "Engine Monitoring" parameter is programmed to "Warning", the engine power is not affected.Test Step 1. Check the Cooling SystemRefer to Testing and Adjusting, "Cooling System - Check".Results:
OK - STOP