Cummins ISB CM850 (2003-06) Fault Code: 195 (2 wires) PID: 111 SPN: 111 FMI: 3 Coolant Level Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at engine coolant level circuit.

Cummins ISB CM850 (2003-06) Fault Code: 195 (2 wires) PID: 111 SPN: 111 FMI: 3 Coolant Level Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at engine coolant level circuit.

Possible causes of this fault code include:

?Open return or signal circuit in the harness, connectors, or sensor
?Signal wire shorted to sensor supply or battery voltage.

Possible repairs:

1)Replace the engine coolant level sensor.
2)Repair or replace the OEM harness.
3)Replace the ECM.