Turbocharger Actuator
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The turbocharger actuator contains a stepper motor that moves the variable geometry turbocharger (VGT) vanes to the commanded position with a mechanical linkage. The turbocharger actuator also contains a position sensor for feedback to the PCM.