Technical Airbag warning light on with fault message

[Aaronsix]

Hello, first of all I introduce myself, my name is Aaron I have a Fiat bravo (198) from 2007 1.9 multijet 120hp.
Recently the light came to me with the fault message in aribag, I checked all the connectors, I passed them the tester and the voltage marks it perfectly, in the end I bought a specific diagnosis machine Autel MaxiLink ML629.
I got 2 errors in the airbag control unit 1 of voltage higher than the battery limit code: b1002 and the other control unit damaged, interior errors code: b1001. Looking for information to repair the high voltage issue, I changed the alternator pulley since the old one sounded when starting, I discharged the battery and the high battery error disappeared (Now I get that the voltage is low but reading more thoroughly is for the switchboard) my problem is that the error in the switchboard keeps coming out and I think I have to change it, the problem is that I can't find it through the scrap yards, let's see if hopefully I can get one, my question is if someone else has happened and how you have solved it since it is a problem that takes me headlong and I'm fed up.

Thanks in advance.

 

[Aaronsix]

I answer myself, to see if someone I passed on can solve it as I have done, after multiple calls to scrap yards, I have found one that had an airbag switchboard, after going, changing it and passing a diagnosis with the erasure of codes, he has It worked correctly and it works again as normal, the only thing that happens now is that the kilometer counter is flashing, but reading I have seen that it is necessary to do a proxy alignment. A greeting!!