I need somebody to go out to their car, pop the hood, disconnect the electrical connector on the a/c compressor (It's kinda triangle shaped and has three wires going into it), set it aside so it doesnt accidentally get caught in a belt or something, start the car, turn the a/c on full blast, get yourself a multi-meter, and see which of those three wires does what. There is a black one, a yellow one with a green stripe, and a yellow one with a red stripe. I'm assuming black is ground and the yellow ones are power or something. For some reason these wires are dead in my car so im gonna try to hard-wire something temporarily. Thanks! (This is only for those people that have operable a/c in their car)

dave

One is a ground, one is 12v+ to the AC clutch, one is an RPM signal from the AC compressor roation pickup to the ETACS.

oh, wonderful...

Is it not green/stripe wires? I think you have a different color than mine.

One of your striped wires will run to a box that is attached to your dash fan that is right under the passenger side of the dash. the other will run to the ECU.

my ac dd the same thing yours did, i ran a 12v wire on a pivot switch to it to kick it on , it works great, ill go out to my car in a few and look at wich wire it was

Is the problem that your compressor wont turn on when the A/C button is on? If so, it's supposed to do that if the refridgerant pressure in the system is too low, to protect the compressor. You can, if you wish, do 2 things to make it turn on. Jump the compressor relay, or, unplug the low pressure cut out switch and jump the 2 terminals together at the plug end. The low pressure cut out switch is located i belive on the accumulator, passenger side fender area. It's a silver roundish, metal cylinder with a small sight glass on the top of it(if i remember right) Dont run it like this for any longer than you have to, as low a/c levels will kill a compressor. You can easily check the LOW side pressure in the system with one of those cheap R-134a pressure gauges that come in recharge kits. The gauge should read in the blue area with the compressor running. If this isnt your problem, then i just wasted a bunch of space :)

no, it was really good information! I actually bought one of those cheap pressure gauge things from pep boys and according to it, the pressure in my system is where it is supposed to be. I've got some time this weekend to put into effect some of the ideas you all have given me and maybe I can get my a/c back. The forecast is calling for triple digits! anyway, thanks again and I'll let everyone know if I got it figured out.

mine was good too, i just look at what wire i hooked a 12v switch to to make it work and it looks brown....

thanks for that bit of info... helped me figure out the problem with my monte carlo's Air conditioner, it was charged just not all the way and conpressor wasnt kicking on. working 100% now.