Cummins ISB CM850 (2003-06) Fault Code: 428 (Auto) PID: 97 SPN: 97 FMI: 3 Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at the water-in-fuel circuit.
The water-in-fuel sensor is integrated into the fuel filter. It is automatically replaced whenever the fuel filter is replaced. For marine applications, the sensor is not integrated into the fuel filter and is a serviceable item.
Possible causes:
1)Open RETURN or SIGNAL circuit in the harness, connectors, or sensor.
2)SIGNAL wire shorted to sensor supply or battery voltage.
Possible repairs:
1)Replace the water-in-fuel sensor.
2)Repair or replace the damaged engine harness.
3)Replace the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 427 PID: SID 231 SPN: 639 FMI: 9 J1939 Datalink – Abnormal Update Rate. Communication between the electronic control module (ECM) and another device on the SAE J1939 data link has been lost.
Cummins ISB CM850 (2003-06) Fault Code: 426 PID: SID 231 SPN: 639 FMI: 2 SAE J1939 data link – cannot transmit. Communication between the ECM and another device on the SAE J1939 data link has been lost.
Cummins ISB CM850 (2003-06) Fault Code: 418 (Marine) PID: 97 SPN: 97 FMI: 15 Water-in-Fuel Indicator Data Valid but Above Normal Operational Range – Least Severe Level. Water has been detected in the fuel filter.
Cummins ISB CM850 (2003-06) Fault Code: 418 (Auto) PID: 97 SPN: 97 FMI: 15 Water-In-Fuel Indicator – Data Valid but Above Normal Operational Range – Least Severe Level. Water has been detected in the fuel filter.
Cummins ISB CM850 (2003-06) Fault Code: 415 (Switch) PID: 100 SPN: 100 FMI: 11 Engine Oil Rifle Pressure – Data Valid but Below Normal Operational Range – Most Severe Level. Oil pressure signal indicates oil pressure is below the engine protection critical limit.
Cummins ISB CM850 (2003-06) Fault Code: 415 (Sensor) PID: 100 SPN: 100 FMI: 11 Engine Oil Rifle Pressure – Data Valid but Below Normal Operational Range – Most Severe Level. Oil pressure signal indicates oil pressure is below the engine protection critical limit.
