Here is an NOS 2002 GMC Envoy Chevrolet Trailblazer Ignition System PCM Control Module #12576463. I have thousands of parts I will be listing, so if you don't see it currently listed, save me as a favorite and come back later to see if it is listed yet. I have a partial list of the parts I have, but the inventory changes daily.DUE TO RECENT BUYERS TRYING THINGS OUT, THEN WANTING TO RETURN USED PARTS, THIS IS NOT A TRY IT AND SEE IF IT WORKS. ALL PARTS ARE BRAND NEW FACTORY GM UNLESS OTHERWISE STATED. IT IS NOT RETURNABLE BECAUSE YOU THOUGHT YOU MIGHT BE ABLE TO GET IT TO WORK FOR A MUSTAN, BUT THE APPLICATION IS FOR A CAMARO. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Starters, Alternators, ECUs & Wiring\ECUs & Computer Modules". The seller is "nospartsplus" and is located in this country: US. This item can be shipped to United States.