AUTOMATIC AIR CONDITIONING SYSTEM: Air Inlet Control
WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
Intake door automatic control selects FRE, 20 - 80% FRE, or REC depending on a target air mix door opening angle.