Memory Operation

Each power mirror contains two motors. One motor moves the power mirror up and down, and the other moves it left and right. The direction the motors turn depends on the supply voltage polarity sent to the motors. Mirror selection (LH or RH) and movement (up/down or left/right) is controlled by operating the power mirror switch. When the switch assembly is operated, battery voltage or ground is applied to the module's select/position inputs. The module will supply battery voltage and ground to the power mirror motors based on the input it sees, moving the power mirror to the commanded position.

Mirror motor position sensors are used to remember the power mirror positions. These sensors are potentiometers contained in the power mirror's drive unit. As the power mirror motors turn, the potentiometer resistance is varied. The power mirror position is determined by the voltage level sent to the memory seat/mirror module. If the set memory button is pushed, and the memory select switch is moved to 1 or 2, the voltage level is stored to remember the power mirror positions.