I'm new here.. just purchased a used 2002 TL a few days ago. I was pumping gas for the first time today and when I turned the car back on, the AC wasn't running. Not sure what has happened. I messed with the controls and the temperature settings and it turned on again for about 5 seconds and when I turned it off "fully auto" it stopped. Now, not the AC nor the heater works at all. Anyone know what might have happened and what I can do to fix it? Thanks in advance.