DMCJoe, Hmmm, think we're both wrong. Don't the fans cycle on and off with the A/C compressor? My car is modified to run the fans when A/C is selected at the mode switch, regardless of the compressor status (which is what I intended to say with my sloppy grammar). If I ever claimed to 100% right, I was completely mistaken. Gus Schlachter Austin, TX 4695 --- In dmcnews@xxxx, "DMC Joe" <dmcjoe@xxxx> wrote: Gus, You said: "If your relays are in the stock configuration, then the cooling fans are not supposed to come on with the A/C." > > This statement is incorrect; regardless of any modification or fan circuit add-on's, the cooling fans should always run whenever the AC is turned on.