Memory Mirror

CIRCUIT OPERATION:

Memory Mirrors
Operation of the memory mirrors is similar to that of the memory seats. Each mirror contains two motors. One motor moves the 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 outside mirror control switch. When the switch is operated, battery voltage is applied to the module's select/position inputs. This causes the module to output voltage to the mirror motors, moving the mirror to the commanded position.

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

The memory seat/memory mirror control module contains circuitry that allows the system to be self-diagnosed. This feature allows system faults to be isolated more quickly.