Check my thread "AC Pblm-Temp fix, Mileage". AC stopped blowing cold air. I "re-booted" the car and AC pblm went away. A few comments on the thread make fun, saying it must be a Microsoft operating system, re-boot (engine off/on) and it goes away. There's probably a lot more to this than just a funny comment because re-booting the car works. Crazy.
Has anyone actually had the dealer trace this problem to a definite "computer" glitch.
For my problem I find it hard to believe that a mechanical problem like a loose harness would magically, mechanically, re-connect when turning the engine off/on.