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Pontiac Master
3,018 Answers
- Posted on Nov 18, 2011
Re: passenger window goes down but not up
- You need to open up the drivers side door and look at that harness that stretches between the door and the door frame. Inside that harness are the wires for the electronics in the cabin and then some.
- Over time those wires get pinched, bent, corroded and crack, bulge or break. So you need to splice the casing open the long ways and inspect the wiring. Sometimes that boot will slide to one side or the other so you don't have to splice into it. Your looking for broke, split, rusted, bulging or otherwise negated wiring. The boots on either side (going into the door frame and the door itself) may need to come off to look up inside for broke wires as well. Usually it's pretty evident which wires are messed up but sometimes you have to do a little digging.
- When you find the broke wire[s] splice some new wire[s] in and use electric tape to re-insulate.
- This is a common problem across the board with many car manufacturers and repairing the harness almost always is the fix in a situation such as yours.
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