ReferenceCummins fault codes

12,060 Cummins fault codes, each with the J1939 SPN and FMI it is broadcast as, the OBD P-code where one exists, the lamp it drives, the Cummins description and what it means in plain English. Type a Cummins code, an SPN, "SPN 4364 FMI 18", or a P-code such as P2BAD.

All codes by number

Grouped by hundreds. Open a group and pick the code; every page shows the SPN, FMI, lamp, meaning, related codes and how to delete it.