Possibly releated electrical grimlins

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Maverick7687

TYF Newbie
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Sep 4, 2009
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Knoxville, TN
I have a 2003 Yukon Denali, actually it's my brothers but that's irrelevant. I am thinking about buying it from him but I want to nail down a couple problems first.

- Power mirrors won't adjust(But the signals on the mirrors work)
- Remote Keyless entry stopped working shortly after he bought it.
- Passenger side window just recently started not rolling down at times (Motor going downhill maybe?)

He took it to the dealer once about the keyless entry and they said something would have to be replaced for around $500.. Thinking that part may be able to be bought off ebay or online somewhere and replaced at home (Can someone confirm or deny if this part has to be computer programmed?).
As far as I know the mirrors worked maybe for a week after be bought it. I am wondering if there is a circuit that may be not getting enough voltage or something (I saw a thread on here where someone's Emergency brake pinched a wire in half) that would make both of those things fail. I have seen reference to a BCM and a RCDLR module in regards to this problem.

Any info or a web link to wiring or something would be awesome. I like the Yukons and what can be done with them. If I do get this Denali it will be something nice to drive around in, maybe some A/V equipment for the tunes and for watching movies.
 

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