For everybody with these heater control unit issues and blower motor switch issues dont waste your money on a whole new unit when you can buy the blower switch for less than $25 at http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_Heater-and-Air-Conditioning-Control-Blower-Switch-ACDelco_18053724-P_825_R%7CGRPACPTAMS_996851159____ It's on the back of the heater control unit and is an easy fix considering its one screw that has to come out, once the unit is out of the dash anyways, which is very simple also. If the link doesnt work the part number is 15-72275 and it is an ac delco part from advanceautoparts.com