The Blower Motor Resistor controls the fan speed in your AC and heating system. If you can no longer adjust the air speed with your AC switch control or your AC and heater no longer blows chances are you need a new Blower Motor Resistor
The AC Blower Motor Resistor is located on lower passenger side dash and is easily accessible by removing a few screws. Installation can be completed in under 20 minutes and you can save hundreds of dollars by doing this repair yourself.