Those 4 black square items on the pcb marked Tyco are the relays.

Thank you very much sir! I have even a weirder problem: sometimes the driver's door won't lock together along with the rear right door, and sometimes, which is even worse, the driver's door won't open from both inside and outside. Some people say it has to do with the battery - yes, may be, but i charge the battery, and the problem often returns - that relay clicks, as you say, but the door won't open, nothing inside the mechanism moves... So, you have given me some hope at least in what direction to research... Your videos are so helpful! If you have updates on your BCM and that relay - please, publish more videos!