Got in the car last night, and the cabin fan cranked itself to max upon startup (ACC on Auto). Thought it was odd because it was fairly cool in the car. Would not respond to the fan speed control, wouldn't even shut off (all other ACC controls work normally). Then the fan started screaming like a banshee for about 3 mins., then quit making noise but still ran. Does not shut off. I finally pulled the fuse. Put fuse back in, same problem. Am I looking at a bad fan resistor, or a bad motor, or both?