CUMMINS FAULT CODE 151

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FAULT CODE 151

Engine Coolant Temperature – Data Valid But Above Normal Operating Range – Most Severe Level

Overview

CODE

REASON

EFFECT

Fault Code: 151

Engine Coolant Temperature – Data Valid But Above Normal Operating Range –

Calibration dependent progressive power

PID:

Most Severe Level. Engine coolant temperature signal indicates engine coolant

derate and engine shutdown with

SPN: 110

temperature above engine protection critical limit.

increasing time after alert.

FMI: 0

LAMP: Red

SRT:

Engine Coolant Temperature 1 Sensor Circuit

Circuit Description

The engine coolant temperature 1 sensor is used by the engine control module (ECM) to monitor the engine coolant temperature. The ECM monitors the voltage on the signal pin and converts this to a temperature value. The engine coolant temperature value is used by the ECM for the engine protection system and engine emission control.

Component Location

The engine coolant temperature 1 sensor is located on the thermostat housing. Use the following procedure for a detailed component location view. Refer to

Procedure 100-002 in Section E.

Shop Talk

This fault code indicates that coolant temperature has exceeded the engine protection limits for high coolant temperature. Refer to Troubleshooting Fault Code t05-151.

Last Modified: 28-Nov-2012

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