Air Door Actuator / Motor: Description and Operation

BLEND DOOR ACTUATOR
The blend door actuator is an electric motor which mechanically positions the blend door. A potentiometer in the actuator allows the BCM (for both manual and ATC systems) to know the exact position of the blend door at all times. The blend door actuator is not serviceable and must be replaced if found to be defective.

MODE DOOR ACTUATOR
The mode door actuator is an electric motor. It mechanically positions the panel/bi-level door and the floor/defrost door. This actuator contains a potentiometer which allows the BCM (for both manual and ATC systems) to know the exact position of the mode doors at all times. The mode door actuator is not serviceable and must be replaced if found to be defective.