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Cummins ISL CM850 (2003-06) Fault Code: 429 (Marine) PID: 97 SPN: 97 FMI: 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 ISL CM850 (2003-06) Fault Code: 431 (ISS) PID: SID 230 SPN: 558 FMI: 2 Accelerator Pedal or Lever Idle Validation Circuit - Data Erratic, Intermittent, or Incorrect. Voltage detected simultaneously on both idle validation and off-idle validation switches.

Cummins ISL CM850 (2003-06) Fault Code: 431 (NISS) PID: SID 230 SPN: 558 FMI: 2 Accelerator Pedal or Lever Idle Validation Circuit - Data Erratic, Intermittent, or Incorrect. Voltage detected simultaneously on both idle validation and off-idle validation switches.

Cummins ISL CM850 (2003-06) Fault Code: 431 (SSS) PID: SID 230 SPN: 558 FMI: 2 Accelerator Pedal or Lever Idle Validation Circuit - Data Erratic, Intermittent or Incorrect. Voltage detected simultaneously on both idle validation and off-idle validation switches.

Cummins ISL 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.

Cummins ISL CM850 (2003-06) Fault Code: 433 PID: 102 SPN: 102 FMI: 2 Intake manifold pressure sensor circuit - data incorrect. An error in the intake manifold pressure sensor signal was detected by the ECM.

Cummins ISL CM850 (2003-06) Fault Code: 434 PID: SID 251 SPN: 627 FMI: 2 Power Supply Lost With Ignition On - Data Erratic, Intermittent or Incorrect. Supply voltage to the ECM fell below 6.2 VDC momentarily, or the ECM was not allowed to power down correctly (retain battery voltage for 30 seconds after key OFF).

Cummins ISL CM850 (2003-06) Fault Code: 435 PID: 100 SPN: 100 FMI: 2 Oil Pressure Switch Sensor Circuit - Data Erratic, Intermittent or Incorrect. An error in the engine oil pressure switch signal was detected by the ECM.

Cummins ISL CM850 (2003-06) Fault Code: 436 PID: 105 SPN: 105 FMI: 2 Intake Manifold 1 Temperature - Data Erratic, Intermittent, or Incorrect. The intake manifold temperature sensor is reading an erratic value at initial key ON.

Cummins ISL CM850 (2003-06) Fault Code: 441 PID: SID 168 SPN: 168 FMI: 1 Battery 1 Voltage - Data Valid but Below Normal Operational Range - Moderately Severe Level. ECM supply voltage is below the minimum system voltage level.