Compatibility Vehicle: 2008-2010 2012-2015 Mazda 5 About Blower Resistor On most American and import cars and light trucks, the blower resistor is located near or on the blower motor. Many of the newest makes and models incorporate the fan speed as part of the HVAC control module, but if yours doesn't have this, you can change it rather quickly and get your blower working correctly in no time. How to Replace Blower Resistor? Step 1:Locate the blower resistor under the dash on the passenger side of the car. Often it will be attached to the blower motor housing itself, and in line with the blower's power wire. .
