I learned a long time ago, when it comes to vehicle electronics, everything is possible. It is possible the master switch could have failed in such a way as to disable both window controls. Do the other windows work at their switches? Don’t hold me to it but is it possible a back door window switch will plug into the passenger front window plug? If yes & it still doesn’t work you’ll know the answer.
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Originally Posted by Danno54
It didn't sink in right away but andrewwynn made a good point about the motor and reverse polarity. If it works in one direction then it should work in the other direction too. Makes sense now.
KMM111, good point also about not knowing whether the passenger switch was in working order. I didn't know because I don't have passengers often. I guess I assumed it was working because it didn't get much use.
In any case I applied 12 volts directly to the motor and both the motor and regulator are in good working order. I do indeed need a new switch... maybe both. Is it possible that if the drivers master switch fails the passenger switch will also stop working? I think I'll take care of the driver switch first. Does that make the most sense?
Thanks to everyone for the help.
Dan
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