Memory Mirrors (A45)

Mirrors that also have memory function still manually move as described above. There are also position sensors that are potentiometers which attached to each motor's transmission cable. When the cable rotates, the resistance of the potentiometer varies and the feedback voltage is monitored by the appropriate door module to determine the motor's position. The sensor feedback voltage vary from 0.25 volts to 4.75 volts. Each door module supplies a 5 volt reference voltage through CKT 788 (RED/BLK) and reference ground through CKT 782 (PPL/BLK) to the respective mirror position sensors. The driver door module receives the feedback voltage input from the LH mirror horizontal position sensor through CKT 786 (LT BLU/BLK). The driver door module receives the feedback voltage input from the LH mirror vertical position sensor through CKT 784 (DK GRN/BLK). The passenger door module receives the feedback voltage input from the RH mirror horizontal position sensor through CKT 786 (LT BLU/BLK). The passenger door module receives the feedback voltage input from the RH mirror vertical position sensor through CKT 784 (DK GRN/BLK). When a memory set command is received, each door module records the motor positions by storing the feedback voltage of their respective position sensors. When a memory recall command is received, each door module moves the motors until all the position sensor feedback voltages equals the feedback voltages stored in memory.