Mirror Adjustment
The driver's door switch cluster is connected via the LIN-bus to the Footwell Module (FRM).
The mirror adjustment switch in the driver's door switch cluster is converted into a LINbus message.
The FRM checks the status of the driver's door switch cluster every 20 ms. The mirror adjustment switch sends a signal to the electronic module in the driver's door switch cluster which is then forwarded via the LIN-bus to the FRM.
To protect the mirror drive unit, the mirror adjustment is limited to a maximum activation time of 10 s. Activation is maintained within this period of 10 s until the mirror adjustment switch is released. Activation is also maintained until the outside mirror blocks or reaches its end position.
The backrest width button switches to ground. The button returns to its initial position after every time it is pressed. It is integrated in the side panel of the seat.
Scheme 214
The lumbar support button is connected directly to the pump and the adjustment valves. The seat adjustment buttons and memory buttons are connected directly to the driver's seat module with memory function.
