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ISB/ISBe Series Engines – FAULT CODE 146

Coolant Temperature – Engine Protection


Overview

CODE REASON EFFECT
Fault Code: 146
PID: P110
SPN: 110
FMI: 0
LAMP: Yellow
SRT: 

Coolant temperature signal indicates coolant temperature has exceeded the minimum engine protection limit.

Power derate and possible engine shutdown if engine protection shutdown feature is enabled.
Coolant Temperature Sensor Circuit
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Circuit Description

The coolant temperature sensor is used by the electronic control module
(ECM) to monitor the temperature of the engine coolant. The coolant temperature is used by the ECM for the engine protection system and the timing and fueling controls.

Component Location

The coolant temperature sensor is located on top of the thermostat housing.

Shop Talk

Make sure the airflow through the radiator is not obstructed and the engine thermostat is operating correctly.

Refer to Troubleshooting Fault Code t05-146

Last Modified:  26-Oct-2010
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