All three windows on my 95 del sol stopped working.
I took the door switch apart and it looks fine.
i replaced the relay switch under the dash with a known good switch.
i replaced the control module with an unknown module. (is there a way to test them)
they were working fine when i pulled the car into my garage for body work and paint.
can this be an ECU issue? I replaced that too when it went bad sitting in my garage...

 

Does the passenger window work from the passenger door switch?

The wiring harness may have a break where it goes from the door to the chassis. I've seen this happen before.

It is not an ECU issue.

 

no, none of the windows work at all. I'll look at the wires and see... how are you supposed to check them, there's no room and they're sealed.

but now my tach isn't working nor the dash warning lights nor my turn signals. this car is really really making me angry. i put so much work into it then the ECU fried and now this.