Motors
Each mirror has 2 motors. Each mirror has the following components:^ An up/down motor
^ A left/right motor
All of the motors are reversible. The mirror is moved up and down by one motor. When the MMM receives an input in order to move the mirror up, the MMM supplies battery positive voltage (B+) and ground to run the motor in order to move the mirror up. When the MMM receives a mirror down input, the MMM supplies power to the same motor, although the voltage and ground are on the opposite motor cavities. The voltage polarity is reversed and the motor runs the opposite direction. This condition moves the mirror down.