Intake Door Control Specification

Intake door position is basically fixed at FRE when FRE indicators of DEF switch and intake switch turn ON, and fixed at REC when REC indicator of intake switch turns ON.

Courtesy of NISSAN NORTH AMERICA, INC.

Intake door automatic control selects FRE, 20 - 80% FRE, or REC depending on a target air mix door opening angle, based on in - vehicle temperature, ambient temperature, and sunload.