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Electronic Control System ISM and QSM11 Engines – FAULT CODE 295

Ambient Air Pressure Sensor


Overview

CODE REASON EFFECT
Fault Code: 295
PID: P108
SPN: 108
FMI: 2
LAMP: Yellow
SRT: 

An error in the ambient air pressure sensor signal was detected by the ECM.

Engine is derated to no air setting.

Component Location

The ambient air pressure sensor is located below the ECM.

Shop Talk

At key-on, the readings for ambient pressure from the ambient air pressure sensor, intake manifold pressure sensor, and oil pressure sensor are compared. This fault code occurs if the ambient air pressure sensor reading is different from the other two.

Refer to Troubleshooting Fault Code t05-295

Last Modified:  02-Sep-2010
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