I need to know what it is, how much does it really cost and can we put it in ourselves or do we need a mechanic? I have had so much trouble with the fan (for heat and air). I've had to replace the part under the hood three times. Now it just blows all the time at high speed. I have asked about the blower before and and followed that piece of advise but now it seems that the part needed is this resister module but I have been told they cost over $200.00. I'm just checking some more resources before forking out that kind of money. Thanks in advance.