J1939-73 DBC File - Heavy Duty Diagnostics (DM1, DM2, ...)

The SAE J1939-73 DBC file contains decoding rules for converting 'version 4' J1939 diagnostic messages (DM1, DM2, ...) to 'physical values'. This lets you identify issues in e.g. trucks, tractors and buses.

DBC is a CAN database format used in most automotive tools.