It could just be overcharged. Or it could be a switch or sensor. My guess without getting my fingers and eyes all up in its business would be overcharged-too much Freon, or, with a 2002, possibly R134a.
You mentioned that the fans come on. That's a good thing. Those are supposed to come on when you push "the blue button" because the compressor puts an extreme load on the engine which creates more heat that must be dissipated.
Saturday, August 15th, 2015 AT 8:51 PM