Incorrect ambient temp 1999 SEL Windstar
 

Hey all. I have a 1999 Windstar 3.8 SEL that had tranny work a few years ago. Since then the outside temp display is 10 to 15 degrees lower than actual temps. Anyone know how to calibrate this thing? Could it be a connector issue? There's virtually no information out there, hoping some here has a clue.

Thanks.

Brian