The little fan by the rear view mirror

The little fan by the rear view mirror is for the digital climate cotrol system. It draws interior air over the little capacitor like thing, which is not a capacitor, it's a thermistor. it sends the "head" interior air temperature to the climate control. The fan draws interior air over it to accurately measure the temperature inside the car, otherwise it would send the wrong temperature because it is right by the roof, if it is very hot or cold outside, the roof would have a large impact on the reading, making it quite inaccurate. The only place you could get a replacement fan would be a junkyard, as it is extremely expensive at the dealer.

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