RING 7B2805 - Caterpillar

Conditions Which Generate This Code:446-1The engine has been running for three minutes and the temperature that is sensed by the auxiliary temperature sensor has dropped below the warning trip point for system protection.446-2The engine has been running for three minutes and the temperature that is sensed by the auxiliary temperature sensor has dropped below the derate trip point for system protection.446-3The engine has been running for three minutes and the temperature that is sensed by the auxiliary temperature sensor has dropped below the shutdown trip point for system protection.System Response:446-1The Electronic Control Module (ECM) will log the event.446-2The ECM will log the event.The Caterpillar Electronic Technician (ET) displays "Engine Derate" on the status screen.446-3The ECM will log the event.Cat ET displays "Injection Disabled" on the status screen.446-1Engine operation is not affected.446-2The ECM will derate power by 25 percent. The power will be derated at one percent per second.Note: The derate will be cancelled if the auxiliary temperature rises 2 °C (4 °F) above the derate trip point for the programmed amount of time.446-3The engine will shut down.Test Step 1. Use Cat ET to view the parameter setting for the auxiliary temperature. Verify that the set points are valid for the application. Refer to Troubleshooting, "System Configuration Parameters".Determine the events that caused the low temperature condition. Make corrections in order to prevent the low temperature from recurring.Results:
OK - STOP