System Operation - Exterior, Power
WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.
All functions of the power mirror feature are integrated into one switch module. The left and right side selection button selects which side is active and a directional pad is used for directional control. Neutral is achieved by placing the selection button in the center position.
When the exterior mirror directional pad switch is pressed left, right, up or down with the LH or RH exterior mirror selected, the switch then supplies voltage and ground to the appropriate exterior mirror motor. The switch controls the glass movements by reversing polarity of the voltage and ground circuits being supplied to each motor.