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Re: '99 Denali heated seat won't work
I have a 2000. Basically you have to take the seat out(4 bolts and 1 electrical connection). You take the seat cover partially off and you'll see where the electrical connection comes out through the bottom of the seat. You can then disconnect that. Once you have the electrical connection unhooked, you can hook for a dark spot or broken wire. My fix the first time was just cutting the bad spot out and reconnecting the wire. The second time, failed 2 years later, was a broken element WITHOUT any black spots. Much harder to troubleshoot, but I ended up testing portions of wire to figure out where the bad spot was and I took that out of the equation. Works like a charm again and took me about 2 hours.
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