Cummins ISM CM870 (2003-06) Fault Code: 227 PID: S232 SPN: 620 FMI: 3/3 Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 2 circuit.

High voltage on the (+) 5 volt supply line can be caused by a short to battery voltage in the engine harness or connectors, or a malfunctioning ECM.

Possible repairs:

1)Replace the ECM.
2)Replace the engine harness.

Cummins ISM CM870 (2003-06) Fault Code: 224 PID: S085 SPN: 1265 FMI: 3/3 Centinel? oil control valve circuit - shorted high. Open circuit or high signal voltage detected at Centinel? oil control valve circuit.

Cummins ISM CM870 (2003-06) Fault Code: 223 PID: S085 SPN: 1265 FMI: 4/4 Centinel? oil control valve circuit - shorted low. Low signal voltage detected at Centinel? oil control valve circuit.

Cummins ISM CM870 (2003-06) Fault Code: 222 PID: P108 SPN: 108 FMI: 4/4 Barometric Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at barometric pressure circuit.

Cummins ISM CM870 (2003-06) Fault Code: 221 PID: P108 SPN: 108 FMI: 3/3 Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source. High signal voltage detected at barometric pressure circuit.

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