Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 649 PID: SID 115 SPN: 1378 FMI: 31 Engine Oil Change Interval- Condition Exists

Circuit Description
The engine control module (ECM) informs the driver of a maintenance event by using the Maintenance Monitor feature’s lubrication oil drain limits.

Component Location
Not Applicable

Conditions for Running the Diagnostics
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.

Conditions for Setting the Fault Codes
The Engine Control Module (ECM) detected the engine oil and filter required changing based on the programmable setting in the Maintenance Monitor.

Action Taken When the Fault Code is Active
The ECM flashes the amber CHECK ENGINE lamp, indicating a maintenance condition, immediately after the diagnostic runs and fails.
Conditions for Clearing the Fault Code
Use the INSITE electronic service tool to reset the Maintenance Monitor feature.

The ECM will turn off the flashing amber CHECK ENGINE lamp / MAINTENANCE lamp immediately after the diagnostic runs and passes.

The Reset All Faults command in INSITE™ electronic service tool can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications.

Shop Talk
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 Cause:
1) ECM calibration