97 s-500 A/C economy button control question
 

well.... when I start the car the EC lighted/switch(economy switch) cannot be switched off unless I pull the fuse or turn the key on and off an additional time to reset it. Therefore the compressor will not start to cool the air unless I reset it every time I start the car. Is this a pressure switch problem...cause I have plenty refrig pressure and volume is okay. Any Ideas?

See if this helps, especially the second page.

http://www.peachparts.com/shopforum/showthread.php?t=86110

Len