Cummins ISL CM850 (2003-06) Fault Code: 235 PID: 111 SPN: 111 FMI: 1 Coolant Level - Data Valid but Below Normal Operational Range - Most Severe Level. Low engine coolant level detected.

This fault code goes active when the coolant level inside the radiator top tank or surge tank drops below the sensor level. Fill the top tank with coolant.

Possible repairs:

1)Add coolant to the engine.

Cummins ISL CM850 (2003-06) Fault Code: 234 (Marine) PID: 190 SPN: 190 FMI: 0 Engine Crankshaft Speed/Position - Data Valid but Above Normal Operational Range - Most Severe Level. Engine speed signal indicates engine speed above engine protection limit.

Cummins ISL CM850 (2003-06) Fault Code: 234 (Auto) PID: 190 SPN: 190 FMI: 0 Engine Crankshaft Speed/Position - Data Valid But Above Normal Operating Range - Most Severe Level. Engine speed signal indicates engine speed above engine protection limit.

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.

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.

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