Where is the CAN bus located in a Mercedes-Benz?
2 Answers
Mercedes-Benz CAN bus is located near the gear shift. By connecting the bus interface with an instrument, you can access the data information of the vehicle's computer. The function of the automotive bus: The automotive CAN bus, also known as the automotive bus, stands for Controller Area Network. It refers to the regional network controller. Through sensors distributed throughout the vehicle body, various data of the car will be sent to the "bus". These data do not have a designated sole receiver. Any receiving end that requires this data can read the needed information from the "bus". The transmission method of the automotive bus: The automotive CAN bus uses serial data transmission, which can operate at a rate of 1Mb/s on a 40m twisted pair or be connected via optical fiber. Moreover, the bus protocol on this bus supports multiple master controllers, effectively ensuring the timeliness and accuracy of the data.
I've worked in the auto repair industry for over a decade, specializing in Mercedes' CAN bus systems. It's not a single fixed point, but rather spreads throughout the vehicle like a spiderweb. The engine compartment has the highest concentration, such as near the engine control module where diagnostic equipment is often connected. There's also a main wiring harness under the dashboard connecting various sensors - accidental contact can cause malfunctions. Last time, an owner caused a short circuit by tampering without knowledge, leaving the car unable to start. Remember, the bus locations are sensitive; don't handle them carelessly. Professional technicians use scanning tools to precisely locate faults - it's safer. Otherwise, repairs become costly, time-consuming, and compromise driving safety.
