Active Grille Air Shutter - If Equipped
The active grille air shutter is installed behind the radiator grille and attached to the hood latch panel. The active grille air shutter incorporates moveable vanes that control the air flow into the top half of the upstream main duct.
The vanes can be set to 1 of 14 positions between fully closed and fully open, and have a range of movement of 80°. During normal operation, for the vanes to move from fully closed to fully open takes approximately 30 seconds. To move the vanes from fully open to fully closed takes approximately 90 seconds.
Operation of the active grille air shutter motor is controlled by the PCM . The PCM communicates with the active grille air shutter motor on a local Interconnect Network (LIN) bus connection. Power for the active grille air shutter motor is provided by the PCM relay in the EJB .
For additional information, refer to: ENGINE COOLING