Gmb205

Does anyone know which can bus block communicates with the anti theft system on this model? I got water damage and replace all of the blocks, but I'm still having communication problems. The battery is fine, fuses are all good. I believe that certain wires that go into the blocks may need changing, but I can't find which blocks communicates with what. I have no gear indicator, fuel, or temperature indicators. Esp and do not shift,contact dealer appears on screen. Scan tool basically says that the message is missing to from sam. I've read every single thread on here about that, and I've excluded everything that I've seen. The only thing that I haven't done is replaced a couple of wires that seemed corroded that plug into the bus. I know for a fact that the problem is in the can bus, I just don't know which one, that's why I asked about the anti theft. If anyone can help with knowledge about what's going on, I'd be grateful. 000 982 04 12, 000 982 10 12, 000 982 11 12 000 982 12 12, are the part numbers for the blocks. Thanks.