Extended vehicle network (GVN) function - GF00.19-P-0001SX
MODEL 215, 220 as of 1.9.03
Shown except code (498) Japan
Shown with code (498) Japan
Extended vehicle network
The further development of driver information systems as well as the spread of driver-supported systems (e.g. Distronic, ambient sensor technology) are reflected in the requirements on data bus systems. A data bus is a data collection line, the data of which can be used by all the control units connected.
In automotive engineering, the Controller Area Network (databus/CAN bus) (CAN) means that data are exchanged between almost all control units of a motor vehicle via a databus.
Function
Most control units are interlinked over databus lines. Control commands or messages are coded and introduced into the databus message or address orientated, with the individual control units having different priorities (access rights). The coded commands or messages can only be received by control units with authorized access.
The corresponding actuators are then actuated by these control units. In some cases, various received messages are also combined in a control unit to form a new message. The new message is then also available to other control units on the databus system.
Basically 3 data bus systems are involved in the networking:
- Controller Area Network bus Class B (interior) (CAN-B)
- Controller Area Network bus Class C (engine compartment) (CAN-C)
- Media Oriented System Transport (MOST)
The fields of application differ as given below:
- CAN-B networks the control units for the convenience functions and lighting equipment in the vehicle (e.g. power windows, heated rear window, external and interior lights).
- CAN-C networks the control units for the drive and chassis systems (e.g. engine, transmission control).
- MOST uses a fiber optical cable to network the control units for the audio and navigation systems (e.g. telephone, voice control).
In respect of the interference immunity, e.g., compared with electromagnetic effect or radiation, and the high data transfer rate, higher requirements are placed on the CAN-C.
The internationally standardized network management "OSEK" (open systems and their interfaces for electronics in vehicles) is used for all the control units on the CAN-B.
Data transfer between the bus systems
The following control units form the interface between the bus systems:
- The central gateway control unit (N93) connects the CAN-B and the CAN-C.
- The audio gateway control unit (N93/1) connects the CAN-B and the MOST.
Steering column module (N80), instrument cluster (A1) and EIS control unit (N73)
Although the steering column module (N80), the instrument cluster (A1) and the EIS control unit (N73) are connected both to the CAN-B as well as to the CAN-C and exchange data with both bus systems, they do not act as an interface (gateway).
| Operating, display and control unit, location/task/design/function | with CODE (352a) COMAND control and display system except CODE (498) Japanese version Except CODE (494a) USA version |
GF82.85-P-3114G | |
| TV tuner, location/task/design/function | with CODE (352a) COMAND control and display system With code (860) TV tuner except CODE (498) Japanese version Except CODE (494a) USA version |
GF82.60-P-3109CA | |
| Sound amplifier, location/task/design/function | with CODE (810) Sound system with CODE (352a) COMAND control and display system |
GF82.62-P-3100AB | |
| Voice control system control unit, location/task | Models 215.3, 220.0/1 with code (813) Voice control system (VCS) | GF82.70-P-4113M | |
| Telecommunications control unit, location/task/design/function | Up to 31.5.04 with code (383a) Tele-Aid fixed installation telephone | GF82.70-P-3114SU | |
| Telephone interface, location/task/design/function | with CODE (854) MB portable CTEL telephone | GF82.70-P-3107CA | |
| Navigation processor, location/task/design/function | with CODE (352a) COMAND control and display system | GF82.85-P-3103BA | |
| CD player with changer, location/task/design/function | With code (819) 6-disc CD changer With code (819a) CD changer |
GF82.64-P-3113BA | |
| Audio gateway control unit, location/task/design | Models 215.3, 220.0/1 | GF82.62-P-3116SZ | |
| Left signal acquisition and actuation module, location/task/design/function | GF54.21-P-4101S | ||
| Right signal acquisition and actuation module, location/task/design/function | GF54.21-P-4102S | ||
| Rear signal acquisition and actuation module, location/task/design/function | GF54.21-P-4103S | ||
| Upper control panel control unit, location / task / design / function | GF54.21-P-4105S | ||
| Rear door control unit, location / task / design / function | Model 220 | GF72.29-P-4102S | |
| Front driver-side door control unit, location/ purpose/design/function | GF72.29-P-4105S | ||
| Front passenger's door control unit, location/ task/design/function | GF72.29-P-4106S | ||
| Pneumatic control unit (combined), location/ task/design/function | GF80.20-P-4106S | ||
| Left front seat adjustment control unit with memory location/task | GF91.29-P-2106S | ||
| Right front seat adjustment control unit with memory location/task | GF91.29-P-2107S | ||
| Rear compartment control unit, location/task/design | Model 215 | GF91.29-P-2111A | |
| Rear seat control unit, location/task/design/function | Model 220 with code (223b) electrically adjustable rear bench seat, with code (224c) electrically adjustable individual rear seats, with seat ventilation, seat heater and memory package, with code (402a) rear seat ventilation, with CODE (872) Electric seat heater left and right rear seats | GF91.29-P-2108S | |
| Overhead control panel control unit, location/task/design/function | Models 215.3, 220.0/1 | GF82.20-P-4101S | |
| PTS control unit, location / task | With CODE (220a) Parktronic system (PTS) | GF54.65-P-4100A | |
| Keyless Go control unit, location/task/design/function | GF80.61-P-4102SM | ||
| STH heater unit, location/task/design/function | with code (228) stationary heater | GF83.70-P-4060M | |
| Emergency tensioning retractor with airbag control unit, location/task/design/function | GF91.60-P-4006B | ||
| DC/DC converter control unit, location/task | Models 220.025/026/028/063/065/067/070/073/074/075/083/084/087/125/126/128/165/167/170/173/174/175/176/178/183/184/187/874/875/876/878 with code (443) steering wheel heater Models 215.373/374/375/376/378 with code (443) steering wheel heater |
GF46.11-P-4002M | |
| Trailer recognition control unit, location/task/design | MODEL 215 with CODE (550) Trailer coupling | GF82.10-P-2106M | |
| MODEL 220 with CODE (550) trailer hitch | GF82.10-P-2106S | ||
| Tire pressure monitor control unit, location / task / design | with code (475) tire pressure monitor | GF40.15-P-3001B | |
| PAS control unit location/task | Model 220.175 with code (979) special protection version with panic alarm system (PAS) | GF82.25-P-3101MB | |
| Electronic ignition switch control unit, location/task/design/function | GF80.57-P-4102S | ||
| Steering column module, Location/Function/Design/function | GF54.21-P-4104S | ||
| Instrument cluster (IC), location / task | GF54.30-P-3039S | ||
| Central gateway control unit location/task | GF00.19-P-4100S | ||
| Front emergency tensioning retractor, location/task/design/function | Model 220 | GF91.40-P-4000M | |
| Model 215 | GF91.40-P-4000N | ||
| CDI control unit, location/task/function | Models 220.026/126 with Engine 613.960 | GF07.16-P-3102IA | |
| ABC control unit, location/task/function | With code (487a) Active Body Control (ABC) | GF32.50-P-4500A | |
| DTR control unit, location/task/design/function | Model 220 up to 31.5.04 with Engines 112, 113, 137, 275, 613, 628 and Code (219a) Distronic (DTR) Model 215 up to 31.5.04 with Engines 113, 137, 275 and Code (219a) Distronic (DTR) |
GF30.30-P-3104K | |
| ETC control unit, location/task | Transmission 722.6 | GF27.19-P-4012G | |
| VGS control unit, location/task | Transmission 722.9 | GF27.19-P-4013N | |
| Electronic selector lever module control unit, location/task | Transmission 722.6 | GF27.19-P-5140GA | |
| Transmission 722.9 | GF27.19-P-5140N | ||
| AIRmatic with ADS control unit, location/task/function | Model 220 except Code (487a) Active Body Control (ABC) | GF32.22-P-4200B | |
| ESP control unit, location/task/function | Model 215, 220 (except, 220.08/18) with code (472a) Electronic Stability Program (ESP) | GF42.45-P-4500B | |
| Control unit for headlamp range adjustment, location/task | Model 220 with code (612b) Xenon headlamp unit | GF82.10-P-2102S |