Peugeot 207 BSI 1.6 16v 2008

Good night people, I tell you I have a problem with a Peugeot 207 1.6 16v wanted to have happened to someone, the BSI stopped recognizing the Air Bag and I have scanned it and simply tells me that it is a problem in network can but the network is well fully reviewed with oscilloscope I got another bsi used and the question is whether to change the micro of the original car immobilizer. I would also like to know if someone has twinned Bsi with Max scanner?

Marcelo the BSI in Peugeot must be compatible with the instrument stab. pass when the gum of the harness k is broken on this Asia the vain motor, t wise desd Venezuela ......

Thank you very much valuable your opinion my idea was to change the micros of the BSI so that the board and the ECU gain the immobilizer