Throttle Control Motor
WARNING: This page is about a different car, the 2014 Nissan Versa. However, it is still accessible from the selected car via links, so may be relevant.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle valve in response to driving conditions via the throttle control motor.