What steps have you taken to isolate the tweeter as the issue? What trim package do you have, base, moon+tunes? Does it have an aftermarket radio? The OEM tweeters have built in filter, if that is damaged they could quit working. Or simply an aftermarket radio (such as Pioneer) with Front Image Enh...

Tweeters don't work I recently replaced the old rotted away factory door speakers and hoped it would also bring back the sound to the tweeters (it didn't).. I put a multimeter to the pos neg lines going to the tweeters and it is getting power of some kind so my guess is the tweeter itself is busted ...