A "blower resistor" on a car is a component that controls the speed of the air conditioning and heater fan by regulating the amount of electricity going to the blower motor, essentially allowing you to adjust the fan speed from low to high on your car's climate control settings; it acts like a variable resistor, changing the resistance depending on the fan speed selected.
Key points about a blower resistor:
Function: It allows for different fan speeds by varying the electrical resistance to the blower motor.
Location: Typically found behind the dashboard, near the blower motor.
Signs of failure: If your car's fan only works at high speed, or if none of the fan speeds work properly, it could indicate a faulty blower resistor.
What's in the box
1 x Resistor