Well just like the dealer told me a year ago after two trips for an intermittant air conditioning system, it's corrosion or dirt in the snap on connector on the compressor. I didn't know how the connector works, so I made no attempt to un-snap it, I just gave it a healthy dose of DeOxit and wiggled it around. Started the car up and now it's colder than a witch's t**. What a p***-poor design, it's almst touching the fan belt pulley, no wonder it gets dirty and corroded and goes open. I don't know what a permanent fix would be, but for what it's worth, maybe this will help others save some money. Good Luck.
AC Compressor Electrical Connection
Linear Mode
