GL 550 (164.886) V8-5.5L (273.963) (2008)
Overall network
The further development of the driver information system as well as the roll-out of video-based, driver-supported systems (backup camera, ambient
sensor technology, etc.), are reflected in the requirements placed on the data bus systems.
A data bus is a data collection line, the data of which can be used by all the control units connected.
Function
Most control units of the vehicle are linked to each other via data bus lines, in other words there is no direct electrical connection between a sensor and
the executing actuator.
A corresponding message (data) is generated using the sensor signal and made available to the data bus system. However, the data flow must be
controlled using an access procedure (log) if all control units utilize a common bus line.