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Cummins ISM CM875 (2003-06) Fault Code: 432 PID: S230 SPN: 558 FMI: 13/13 Accelerator Pedal Idle Validation Circuit – out of calibration. Voltage at idle validation on-idle and off-idle circuit does not match accelerator pedal position.

This fault is logged when both the on idle and off idle validation switches disagree with the accelerator pedal position signal. Turning the keyswitch ON while partially depressing the accelerator pedal can cause this fault code to go active. This fault will stay active until the pedal is cycled through its full travel.

Possible repairs:

1)Replace the accelerator pedal assembly.2)Replace the OEM harness.

Cummins ISM CM875 (2003-06) Fault Code: 431 (SSS) PID: S230 SPN: 558 FMI: 2/2 Accelerator Pedal Idle Validation Circuit – data incorrect. Voltage detected simultaneously on both idle validation and off-idle validation switches.
Cummins ISM CM875 (2003-06) Fault Code: 431 (ISS) PID: S230 SPN: 558 FMI: 2/2 Accelerator Pedal Idle Validation Circuit – data incorrect. Voltage detected simultaneously on both idle validation and off-idle validation switches.
Cummins ISM CM875 (2003-06) Fault Code: 431 (NISS) PID: S230 SPN: 558 FMI: 2/2 Accelerator Pedal Idle Validation Circuit – data incorrect. Voltage detected simultaneously on both idle validation and idle validation off-idle validation switches.
Cummins ISM CM875 (2003-06) Fault Code: 429 PID: P097 SPN: 97 FMI: 4/4 Water-in-Fuel Indicator Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the water-in-fuel circuit.
Cummins ISM CM875 (2003-06) Fault Code: 428 PID: P097 SPN: 97 FMI: 3/3 Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at the water-in-fuel circuit.
Cummins ISM CM875 (2003-06) Fault Code: 426 PID: S231 SPN: 639 FMI: 2/2 Communication between the electronic control module (ECM) and another device on the SAE J1939 data link has been lost.