You should try swapping out the door control modules. I think this will definitely help. But of course, if this is not the problem, then you need to consider in more detail a few terms in mechanics. I own an electric car myself. An uncle of mine who has long understood electronics terms told me about the importance of using high-quality
circuit boards materials. This is the real basis for the work of not only electronics, but also machines, if I understood everything correctly from his words. Thank you for this post, it was interesting