RomRaider

DTC MS41 RUSS

I know I'm digging up a grave here, but in reference to the table at 25CC.. The first byte in decimal is indeed the BMW DTC. But if you look at the table in 16bit hex, you'll find the next few are the OBD2 equivalent P codes.

Catalyst efficiency faults (297C and 298C) for example:

8bit dec
233 17 32 4 32 4 32 4 60 252 229 232 148 246 144 246
234 17 48 4 48 4 48 4 60 252 229 232 148 246 144 246

16bit hex
11E9 0420 0420 0420 FC3C E8E5 F694 F690
11EA 0430 0430 0430 FC3C E8E5 F694 F690

Interesting, thanks. maybe I'll update the definitions to add the OBD2 code number.