93 mazda mx6 power windows not working

I have had to repair the drivers side window switch several times. It finally became unrepairable. Both the driver side and passenger side windows stopped working. I have replaced the switch and the fuse is OK. The windows still do not work. The switch on the passenger side will not work the passenger window, I have never had a problem with that switch. Does anyone have an isea on the cause of this problem? The manual says there is a circuit breaker protect for the windows as well. Does anyone know the location of these?