All mirror functions are controlled via the LIN bus by the general module.
The data interchange between all the components involved (door mirrors, mirror-adjustment switches and general module) is via the LIN bus.
The outside mirrors are both adjusted horizontally and vertically by means of a twin-motor drive. The relevant adjustment direction is sent per message telegram from the general module to the mirror electronics.
The location of the mirror glasses is picked up in vertical and horizontal direction by the mirror electronics. To this end, potentiometers are fitted to the drives.
The general module can request the position values per LIN message and store these accordingly.
As soon as the mirror electronics have received a memory position via the LIN bus, the mirror position is set. The manual electrical adjustment has higher priority than the memory adjustment and it interrupts the ongoing memory interrogation.
The electric motors of the folding drive of the door mirrors can be used to fold the two door mirror against the direction of travel. Pressing the button in the mirror-adjustment switch folds the two door mirrors in or out.
Speed interlocking, anti-repeat circuit for protection against thermal overload and the characteristics in the event of mechanical disconnection (due to forces exerted from outside) are controlled by the general module.
Mirror heating is temperature-dependent.
The mirror electronics have self-diagnosis for all of the functions mentioned. Faults are reported for storage in the general module via the LIN bus.