Rear windows won’t go down.

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a4edwin

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07 Denali xl my rear door windows will not go down from their respective switches but they will go down if I do it from the front. Can it be both switches are bad on either side or can it be the drivers switch? I’ve checked the window lock switch and I still have the problem.
 

exp500

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Could even be the BCM. You could try swapping relays in underhood box (3).
 

89Suburban

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There is a bypass in the rear door jamb too on the door latch, Check that too,
 
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a4edwin

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Only thing I’ve seen at the door latch is the child safety locks nothing else. I’ll check under hood tomorrow it’s raining like crazy here.
 

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