Theory Of Operation
WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
After the initial installation of the HVAC Module, the controller is calibrated to each individual blend/mode door actuator. These calibrations are stored as in the number of pulses it takes to move the door from one stop to another. The HVAC Module drives the Door Actuators by the use of two Door Driver circuits and monitors all door actuator pulses to detect door movement in both directions. For further information. Refer to OPERATION and DESCRIPTION .