Hi. So the blower fan in my SE '08 Titan won't shut off when turning the blower speed control to the off position. The A/C,directional position and temp controls all work. I had to go to the dealership for an oil change anyway. When I was there I asked the tech what it could possibly be. He said the Climate Controller was usually the problem and that a new one would cost me $450 INSTALLED!:eek_surprise: I have a buddy with the same truck as mine and he was willing to remove the working Climate Controller he had to let me use it to troubleshoot. I installed his and it did not resolve the issue. What could it be now???