I had to read your post again to pick up on something that I missed the 1st time. Do this, after driving the car to warm it up park it, turn the A/C on high and see if the aux. fans run. If they do not run check the 15A fuse on top of the aux fan relay. There is a black plastic box behind the underhood fuse box. Remove the 6 phillips screws and remove the black plastic box then you will find two relays. See if the fuse in one of them is blown. Replace it with a 20A fuse and you should be good to go.