The problem was solved and the solution was banal. Well, I checked everything that was possible in the car. And it turned out that everything went through as I SEWED THE ARMCHAIR FROM P-BUS. I have no idea why it happened that the seat driver fucked something in GM ... I have no idea what it could be about because I used the same seat module before (because my previous seat broke) and when connecting new seats it happens. After reconnecting the P-BUS to the seat it is the same, the central one in the front door does not work, the cushion is lit (passenger mat error, although it is blinded with a resistor). If the chair is disconnected, everything suddenly starts working. And this is not GM's fault because I bought a second one and it is the same so there is something with a chair on the bank. The chair, of course, walks normally (moves, pumps, etc.). However, THANK YOU for your help. I still have to look at the pins in the chair because maybe something did not play there.
best regards