1. My A/C used to work normal and one day i was driving on the highway it quit on me.
2. the next day it worked on for 15 seconds and the compressor would disengage. it would every time i turn off and turn on the car.

3.now the compressor tries to turn but works only 1 second.

I dont know what to check please help all you A/C guru's out there.
i do know that i have freon.