Shop Dodge Blower Motor Resistor Connector & Dodge Blower Motor Resistor Location. Replace Dodge Blower Motor Speed Control Module. Maintaining the blower motor resistor in your Dodge is crucial for a comfortable driving experience, as it controls the vehicle's heating and air conditioning fan speeds. Early signs that may indicate the need for a replacement include a fan that only works at high speeds or not at all. To extend its lifespan, regularly check the resistor for corrosion and debris, ensuring a clean connection. When selecting a new blower motor resistor, opt for one that matches your Dodge model for a seamless fit, and consider upgraded versions with enhanced materials for durability. Always prioritize high-quality construction and consider ease of installation, which can often be a simple DIY task with plug-and-play components, to keep your Dodge's cabin climate under your command.