I have a 2006 Mitsubishi Galant with over 200,000 miles on it. My ac stopped working so I stopped driving it for a couple of weeks, after that my wife drove it a couple of days and it worked fine and then stopped working again. I tried to jump the wires on the pressure switch plug and the compressor would not come on and the on and off switch ac light is flashing. I checked the valve on the low side and I have pressure in the system and I also checked the blend door to make sure it was working. Does anyone know if it is just the pressure switch or could I have another problem? Any information would be greatly appreciated.