My 92 started to suddenly have no power windows and no interior power lock function. The aftermarket alarm still operated the door locks and the steering wheel and sunroof still worked fine. I started pulling the power window switches and low and behold, the driver side master window connector had fallen out on its receptacle. I reconnected it and Blammo! All works fine! Hope this helps someone.

 

It's been taken apart before. Most of them need a pry bar to get the plug out.

 

I have a similar problem, but not the exactly the same. My power windows work fine. Its the power locks that don't work correctly. They work with the aftermarket alarm, but not with either the driver's or passenger side switches. I have checked both left and right harnesses in the doors and they are both connected to the each switch.