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ISB/ISBe Series Engines – FAULT CODE 151

Coolant Temperature – Engine Protection


Overview

CODE REASON EFFECT
Fault Code: 151
PID: P110
SPN: 110
FMI: 0
LAMP: Red
SRT: 

Engine coolant temperature signal indicates coolant temperature has exceeded the engine protection limit.

Power and/or speed 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, timing, and fueling control.

Component Location

The coolant temperature sensor is located on the 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 t05-151

Last Modified:  26-Oct-2010
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