Cummins ISL CM850 (2003-06) Fault Code: 227 (Marine) PID: SID 232 SPN: 1080 FMI: 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 VDC supply line can be caused by a signal shorted to battery voltage in the engine harness or connectors, or a failed ECM.

Possible repairs:

1)Replace the ECM.
2)Repair or replace the engine harness.

Cummins ISL CM850 (2003-06) Fault Code: 227 (Auto) PID: SID 232 SPN: 1080 FMI: 3 Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 2 circuit.

Cummins ISL CM850 (2003-06) Fault Code: 222 PID: 108 SPN: 108 FMI: 4 Barometric Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source. Low signal voltage detected at barometric pressure circuit.

Cummins ISL CM850 (2003-06) Fault Code: 221 PID: 108 SPN: 108 FMI: 3 Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source. High signal voltage detected at barometric pressure circuit.

Cummins ISL CM850 (2003-06) Fault Code: 197 PID: 111 SPN: 111 FMI: 1 Coolant Level - Data Valid but Below Normal Operational Range - Moderately Severe Level. Low engine coolant level detected.

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