Abstract: A position encoding system is provided for controlling movement of a movable panel between predetermined positions. The panel is moved by a pair of cables coupled thereto. The system includes a housing assembly and a motor mounted with respect to the housing assembly. The motor has an output shaft rotatable in a forward direction and a reverse direction. Drive gear structure rotates in response to rotation of the output shaft. The drive gear structure cooperates with the pair of cables such that rotation of the drive gear structure moves the cables linearly and thus moves the panel. An encoder gear rotates continuously through multiple revolutions of the output shaft. The encoder gear includes a plurality of electrically conductive contacts on a surface thereof. An idler gear is coupled between the drive gear structure and the encoder gear so as to transfer motion of the drive gear structure to the encoder gear. A printed circuit board is mounted within the housing assembly and has a circuit thereon.