Instrumentation problem
 

Hi all, in the meantime I apologize for my English is not perfect, it is for many months now that I have the Mini (R50) stops due to an electrical problem, basically I do not work any more instrumentation, he odometer, clock it, nor heating and cooling fan. It works the radio, Airbag light, the electric windows, turn signals and headlights (but not marks them working on the equipment).
I brought the car into two workshops, but I was not able to solve the problem, they say that the PC can not read the control units, I can say that the last things I did before the problem was there were the changing of the lock driver and the restoration of the antenna plug.

Thanks in advance to anyone who can give me an answer :)