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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1560 (Climate Control System - General Information (Except Electric) (1 Of2)) >> Description And Operation >> Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description >> Component Description >> Defrost Vent/Register Door Actuator

Defrost Vent/Register Door Actuator

WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

The defrost vent/register door actuator is a stepper motor style actuator. The HVAC control module monitors the position of the defrost vent/register door by counting the motor steps as it rotates. The HVAC control module drives the actuator motor in the direction necessary to move the defrost vent/register doors to the position set by the vehicle occupants.