ADVERTICEMENT
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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