CM850 Electronic Control System – FAULT CODE 297

Auxiliary Pressure Sensor Input 1 Circuit – Voltage Above Normal, or Shorted to High Source


Overview

CODE REASON EFFECT
Fault Code: 297
PID: P223
SPN: 1388
FMI: 3
LAMP: Amber
SRT: 

Auxiliary Pressure Sensor Input 1 Circuit – Voltage Above Normal, or Shorted to High Source. High signal voltage detected at the OEM pressure circuit.

None on performance.

Auxiliary Pressure Sensor Input One Circuit
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Circuit Description

The OEM has the option of wiring a pressure sensor input to the Cummins ECM. A specific calibration is then created to recognize this pressure sensor input.

Component Location

The OEM pressure sensor input will vary depending on application. Refer to the OEM troubleshooting manual for sensor location.

Shop Talk

Possible causes of this fault code include:

  • Open return circuit in the harness, connectors, or sensor.
  • signal circuit shorted to sensor supply or battery voltage.

Refer to Troubleshooting Fault Code t05-297

Last Modified:  08-Jul-2010