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Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 452

Front Rail Pressure Sensor Circuit


Overview

CODE REASON EFFECT
Fault Code: 452
PID: P157
SPN: 157
FMI: 4/4
LAMP: Yellow
SRT: 

Low voltage detected on the front rail pressure sensor circuit.

Engine will run derated.
Front Rail Pressure Sensor Circuit
SMALL | MEDIUM | LARGE

Circuit Description

The front rail pressure sensor provides the rail pressure signal to the electronic control module (ECM).

Component Location

The front rail pressure sensor is located on the front of the fuel delivery housing.

Shop Talk

This fault could be caused by the signal wire having a short circuit to ground, the supply wire having a short circuit to ground, an open circuit in the supply wire, an open circuit in the signal wire, a failed sensor, or a faulty ECM power supply.

Refer to Troubleshooting Fault Code t05-452.

Last Modified:  26-Oct-2010
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