I need help :(

Hello everyone, I would like to know if anyone knows how it is done so that in a Renault Laguna 1 Phase 2 with the computer on the contact, so that the Pimerdia k tube it, I gave it, it gave it to the contact and I tested all doors Aberta brake of hand Oil etc. X Aora Ledoy on contact and says nothing. Not even the "Bienbenido soy and the computer on board." If anyone knows how to solve it, you would appreciate it.