RCP [HBF] control unit, component description - GF54.21-P-4510LE
MODEL 221 with CODE (406) Rear multicontour seat as of model year 2009/YoM 08
MODEL 221 up to 31.5.09 with CODE (864) Rear entertainment system as of model year 2009/YoM 08
Shown up to 31.5.09
Location
The RCP [HBF] control unit is located in the armrest between the rear seats.
Shown as of 1.6.09
Location
The RCP [HBF] control unit is located in the armrest between the rear seats.
The RCP [HBF] control unit (N72/2) has the following controls:
With code (864) Rear entertainment system up to 31.5.09:
- Right screen button (N72/2s4)
- Left screen button (N72/2s5)
- Right "Back" button (N72/2s6)
- Left "Back" button (N72/2s7)
- Rear rotary push-button (N72/2s8)
With code (406) Rear multicontour seats:
- Left seat selection button (N72/2s12)
- Right seat selection button (N72/2s13)
- Backrest side seat contour button (N72/2s14)
- Lumbar support seat contour button (N72/2s15)
- Lumbar support height adjustment button (N72/2s16)
- Gentle massage function button (N72/2s17)
- Firm massage function button (N72/2s18)
Task
The RCP [HBF] control unit allows the rear passengers to control comfort-relevant functions in the rear of the vehicle and has the following tasks:
- Receive signals
- Transmitting signals
Receive signals
The RCP [HBF] control unit receives signals via the following connection:
- Telematics CAN (CAN A)
Telematics CAN
The RCP [HBF] control unit communicates with the following components:
- COMAND controller unit (A40/3)
- Additionally with code (864) Rear entertainment system:
- DVD player
- Left rear display (A40/5)
- Right rear display (A40/6)
The signals are read in via the telematics CAN. The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Transmitting signals
The RCP [HBF] control unit transmits signals via the following connection:
- Telematics CAN
Telematics CAN
The signals are sent by the RCP [HBF] control unit via the telematics CAN. The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Operation via rear rotary push-button up to 31.5.09
Schematic representation
The rotary movement of the rear rotary push-button is picked up in two different spacing resolutions:
- 12 steps per revolution
- 32 steps per revolution
The low-resolution spacing (12 steps per revolution) is used for selecting menus.
The high-resolution spacing (32 steps per revolution) is used for selecting and moving within selection lists.
The rotary movement for selecting within a list is limited at the end of the list by a variable end stop, i.e. when the bottom of a selection list is reached, the rear rotary push-button can no longer be turned and vice versa.
| Movement of rear rotary push-button | Movement of cursor |
|---|---|
| Rotate clockwise | The cursor moves to the right, or downward in vertical menus (exception: slider). |
| Rotate counterclockwise | The cursor moves to the left, or upward in vertical menus (exception: slider). |
| Push forward | The cursor moves upward. |
| Push backward | The cursor moves downward. |
| Push left | The cursor moves to the left. |
| Push right | The cursor moves to the right. |
| Press down vertically | A selected menu or submenu is activated. |
Variants
- Multicontour seat (with code (406) Rear multicontour seats)
- Rear entertainment system (with code (864) Rear entertainment system)
- Multicontour seat and rear entertainment system (with code (406) Rear multicontour seats and code (864) Rear entertainment system)
| Wiring diagram for rear control panel control unit | PE54.21-P-2125-99SAA |