there is a pressure switch in the line that activates the compressor. you might want to check that. you will need to evacuate the freon from the system before you remove the switch. I cannot rember if the switch is normaly open or normaly closed. so I dont want to give any testing advice, for fear that it may cause your car more problems. I would take it to an air conditioning speicalaist. they would be able to help with this.
good luck
good luck
