I have power windows problem Nissan Sentra 1993

I have a nissan sentra 1993, 1.6 engine.
the power windows and the power dors doesn't work. I can't open /close any windows and I can't lock /unlock dors automaticly. I checked all fuses, but all r good. The battery is good and everithing works fine exept this.
So the power windows and the power dors has something in comun that doesn't let them work. What could it be?
What shall I do?
thanks