Question about 1991 GMC K1500

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My cruise stopped working on my 1991 GMC Sierra 1500 while I was driving. I did a continuity test on the brake switch and it works fine. Any ideas?

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Check your cruise control fuse or relay. It will be in your owners manual. If fuse is good than the cruise itself may be faulty. Check continuity on cruise controler itself. If there is power, than the controller itself is bad and need to be replaced. If there is no power than it may be a faulty switch.

Posted on Apr 24, 2009

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