System Diagram
WARNING: This page is about a different car, the 2022 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.
Rear Heating, Ventilation and Air Conditioning (RHVAC) Control Module - Vehicles With: Quadruple Zone Automatic Temperature Control
 Courtesy of FORD MOTOR COMPANY
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Rear Heating, Ventilation and Air Conditioning (RHVAC) Control Module - Vehicles With: Triple Zone Automatic Temperature Control
 Courtesy of FORD MOTOR COMPANY
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