System Description: Notes
WARNING: This page is about a different car, the 2017 Nissan Versa Note. However, it is still accessible from the selected car via links, so may be relevant.
While driving, the active grille shutter system closes shutter to reduce air flow to engine compartment for the purpose of reducing aerodynamic drag, and as a result, improves the vehicle's fuel efficiency.
ECM controls active grille shutter system by detecting vehicle status through respective modules and sensors.
Active grille shutter actuator is equipped with self-diagnosis function. When it detects malfunction, transmits diagnosis signal to ECM and ECM records active grille shutter malfunction.