Cummins ISB CM850 (2003-06) Fault Code: 432 PID: SID 230 SPN: 558 FMI: 13 Accelerator Pedal or Lever 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 or lever position signal. Turning the keyswitch ON while partially depressing the accelerator pedal or lever can cause this fault code to go active. This fault will stay active until the pedal or lever is cycled through its full travel.

Possible repairs:

1)Replace the accelerator pedal or lever assembly
2)Clean the connector and pins.
3)Replace the accelerator pedal or lever assembly.
4)Repair or replace the OEM harness.