Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.
Possible causes:
1)Replace the OEM pressure sensor.
2)Replace the ECM.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 296 PID: 223 SPN: 1388 FMI: 14 Auxiliary Pressure Sensor Input 1 – Special Instructions
PACCAR PX-8 CM2150 (2007-09) Fault Code: 295 PID: 108 SPN: 108 FMI: 2 Barometric Pressure – Data Erratic, Intermittent, or Incorrect. The ambient air pressure sensor is reading an erratic value at initial key-on.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 294 PID: 441 SPN: 441 FMI: 4 Auxiliary Temperature Sensor Input 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at OEM auxiliary temperature circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 293 PID: 441 SPN: 441 FMI: 3 Auxiliary Temperature Sensor Input 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage or open circuit detected at the OEM auxiliary temperature circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 292 PID: 441 SPN: 441 FMI: 14 Auxiliary Temperature Sensor Input 1 – Special Instructions.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 288 PID: 372 SPN: 974 FMI: 2 AE J1939 Multiplexing Remote Accelerator Pedal or Lever Position Sensor System – Received Network Data In Error. The OEM vehicle electronic control unit (VECU) detected a fault with the remote accelerator.