Active Grille Shutter - Overview

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

Overview

The active grille shutter system (when equipped) is comprised of the grille shutter assembly and the grille shutter actuator. The active grille shutter system is primarily used to maximize fuel economy by reducing aerodynamic drag on the vehicle. The active grille shutter system is also used to shorten engine warm-up time, increasing engine efficiency and providing heat to the vehicle occupants in a timely manner. The grille shutter actuator receives position commands from the PCM. The active grille shutter system carries out a calibration sequence whenever the engine is started, fully opening and closing the shutters before being positioned in the programmed position as requested by the PCM.

PCM inputs/outputs that may be used for controlling of grille shutters are the:

ECT sensor
IAT sensor
A/C pressure transducer
APP sensor
ABS module (through the HS-CAN)
AAT (ambient air temperature) sensor
TCT (turbo charge temperature) sensor
MCT (manifold charge temperature) sensor
TOT (transmission oil temperature) sensor
Engine cooling fan motor
Engine oil temperature