Cummins ISX CM870 (2003-06) Fault Code: 649 PID: S153 SPN: 1378 FMI: 11/31 Change Lubricating Oil and Filter. Maintenance Monitor feature indicates the engine is due for a lubricating oil and filter change.

This fault code will only become active if the Maintenance Monitor is enabled in INSITE? electronic service tool. Make sure the oil and filter are changed before clearing the fault code.

Possible repair:

1)Change the engine lubricating oil and filter.