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.

Possible causes:

1)Low oil pressure
2)Incorrect oil level
3)Damaged oil pressure switch
4)Engine harness shorted to ground.

Possible repairs:

1)Replace the oil pressure switch.
2)Repair or replace the engine harness.
3)Replace the ECM.

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.

Cummins ISB CM850 (2003-06) Fault Code: 412 PID: SID 250 SPN: 608 FMI: 2 SAE J1587/J1922 data link - can not transmit. Communication between the ECM and another device on the J1587/J1922 data link has been lost.

Cummins ISB CM850 (2003-06) Fault Code: 387 PID: SID 221 SPN: 1043 FMI: 3 Accelerator Pedal or Lever Position Sensor Supply Voltage Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply circuit for the accelerator pedal or lever position sensor.

Cummins ISB CM850 (2003-06) Fault Code: 386 PID: SID 212 SPN: 1079 FMI: 3 Sensor Supply Voltage number 1 Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 1 circuit.

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