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Discussion Starter #1
Both of my power windows will not go down. I tried the passenger side switch and both of the drivers side switches with no luck, I can't imagine that all 3 switches went bad at the same time. I checked the #3 20 amp fuse for the power windows visually and for continuity, it is good. Is there a relay and/or module for the power windows somewhere?

Thanks for any help! :shrug:
 

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Give us a hint here of what you have. I assume it is a 451, and maybe a little back history.. I would guess you checked battery and for power at the fuse??
 

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Discussion Starter #3
Sorry! 2008 451 Passion. I only checked the fuse for continuity. The battery tested bad a few days ago and was replaced.
 

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My first smart. 2008 Pure, had a bad solder joint in the SAM and caught on fire with 17K miles on it. Only had it a few months. Hopefully that isn't your problem. Could be a bad connection at the fuse, or maybe wires going to the drivers door. Most cars, if the drivers side switches go out, the others wont work either.
 

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Discussion Starter #5
Visually the old fuse looks fine, continuity checked good on 2 different voltmeters, and power was present. When bypassing the fuse the windows worked fine. I replaced the fuse and they work again...
 

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It does not matter how the fuse looks. It needs to have power on both sides for the windows to work. Use a volt meter while pressing the window switch or use a 12 volt test light. If the fuse tests good test for power and ground at the window controller under the dash on pins 1 RED/WHT for power and pin 4 BRN for ground. Depends on what year Studebaker you are working on.
 
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