Cummins ISB CM850 (2003-06) Fault Code: 296 PID: 223 SPN: 1388 FMI: 14 Auxiliary Pressure Sensor Input 1 – Special Instructions
This fault code is activated when the pressure input from the OEM sensor exceeds the engine protection limit defined by the OEM. An engine power derate is possible depending on the OEM application.
Possible repairs:
1)The engine protection limit has been exceeded for the OEM supplied pressure input.
Cummins ISB CM850 (2003-06) Fault Code: 295 PID: 108 SPN: 108 FMI: 2 Barometric Pressure ?Data Erratic, Intermittent, or Incorrect. The barometric air pressure sensor is reading an erratic value at initial key-on.
Cummins ISB CM850 (2003-06) 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.
Cummins ISB CM850 (2003-06) Fault Code: 293 PID: 441 SPN: 441 FMI: 3 Auxiliary Temperature Sensor Input 1 – Voltage Above Normal, or Shorted to High Source. High signal voltage or open circuit detected at the OEM auxiliary temperature circuit.
Cummins ISB CM850 (2003-06) Fault Code: 292 PID: 441 SPN: 441 FMI: 14 Auxiliary Temperature Sensor Input 1 – Special Instructions.
Cummins ISB CM850 (2003-06) Fault Code: 291 PID: SID 248 SPN: 625 FMI: 9 Proprietary Datalink Error (OEM/Vehicle Datalink) ? Abnormal Update Rate. The ECM cannot communicate with the immobilizer anti-theft system.
Cummins ISB CM850 (2003-06) Fault Code: 288 PID: 29 SPN: 974 FMI: 19 SAE J1939 Multiplexing Remote Accelerator Pedal or Lever Data Error – Received Network Data Error. The OEM vehicle electronic control unit (VECU) detected a fault with the remote accelerator.
