Cummins ISL 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.

Cummins ISL CM850 (2003-06) Fault Code: 187 (Marine) PID: SID 232 SPN: 1080 FMI: 4 Sensor Supply 2 Circuit - Voltage Below Normal, or Shorted to Low Source. Low voltage detected at the sensor supply number 2 circuit.

Cummins ISL CM850 (2003-06) Fault Code: 187 (Auto) PID: SID 232 SPN: 1080 FMI: 4 Sensor Supply Voltage Number 2 Circuit - Voltage Below Normal or Shorted to Low Source. Low voltage detected at the sensor supply number 2 circuit.

Cummins ISL CM850 (2003-06) Fault Code: 155 (Marine) PID: 105 SPN: 105 FMI: 0 Intake Manifold 1 Temperature - Data Valid but Above Normal Operational Range - Most Severe Level. Intake manifold air temperature signal indicates intake manifold air temperature above engine protection critical limit.

Cummins ISL CM850 (2003-06) Fault Code: 155 (Auto) PID: 105 SPN: 105 FMI: 0 Intake Manifold 1 Temperature - Data Valid But Above Normal Operating Range - Most Severe Level. Intake manifold air temperature signal indicates intake manifold air temperature above engine protection critical limit.

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