OBD-II protocol is useful to get special infos like Calibration ID.
Link to OBD-II page
IIRC one cannot get CID and CVN from the control unit via SSM2 (without knowing ROM-specific RAM addresses).
However, VIN is easy to grab via standard SSM2, too. AFAIK FreeSSM uses the VIN via SSM2 method.
- Boxer Diesel
- ECU Analysis
- ECU Definitions