I ran across your post while doing a search (Yep, I actually searched!!!). My daughter is now driving my mystique (after she wrecked my contour

), and she called yesterday to tell me that neither the turn signals nor the heater/ac fan are working properly. It seems that when one works the other works. But, both of them work intermittently. It sounds like I may have the same problem you have/had. Did you figure out what was causing the problem?