Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 483

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Overview

Rear Rail Pressure Sensor SMALL | MEDIUM | LARGE

Circuit Description

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

Component Location

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

Shop Talk

This fault could be caused by the return or signal wire shorted to positive (+) 5 VDC or positive (+) 12 VDC, an open circuit in the return wire, or a failed sensor.

Refer to Troubleshooting Fault Code t05-483.