Blower Motor: Operation
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
The blower motor is used to control the velocity of air moving through the HVAC housing by spinning the blower wheel within the HVAC air inlet housing at the selected speed.
The blower motor will operate whenever the ignition switch is in the On position and the blower motor control in any position except Off. Blower motor speed is controlled by regulating the path to ground through the blower motor resistor and through the blower motor control located within the A/C-heater control.
The blower motor and blower motor wheel are factory balanced and cannot be adjusted or repaired. If faulty or damaged, the blower motor and blower wheel must be replaced as an assembly.