Okay, i have done some more research and wondering around with my multimeter. I opened up driver side lock switch panel and measured it and one of the pins has aprox. 12 volts coming as it should. Now on the passenger side, there is three pins and one of them has voltage at all times. 1v... Seems to me that it may not be quite enough.
I have Haynes repair manual and i try to look those lock wiring diagrams but colours aren`t the same on the manual and my truck. However if i understand correctly the power comes from the fusebox, goes to the passenger side switch, then continues instrument cluster and after that goes driver side door and rear doors. So if the "main brains" are in the cluster and it gets 1v it can`t operate any doors... At least i don`t think it could... In the other hand, this does`t explain why there is power in driver side mut no function.
While i was laying on the floor, middle of wires and pedals i looked up at cluster in case i might see something out of the ordinary. I noticed one empty slot in the cluster. Does it supposed to be empty or is there missing something, like keyless entry receiver? Heres a pic.
And thanks again!!