Check fuses 6 & 16. The fuses should be at the end of the dash between the dashboard and the door. As far as the relay location, it is under the dash. I attached a picture for you.
September, 9, 2011 AT 1:06 AM
On top of the battery, there is a fuse box. You will see 3 green fuses. The one closest to the passenger side is the fuse that's most likely your culprit for a faulty a/c system. The fuse block/fuse melts and creates an open circuit. Try wiggling it to see if the a/c fans come on.