Compatibility Vehicle: 2003-2011 Saab 9-3 with Automatic Temperature Control 2010-2011 Saab 9-3X with Automatic Temperature Control 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? .