How to test car can wire

To detect the CAN cable with a multimeter, there is also a way to measure the resistance, 60 or 120 ohms, different cars, CAN cable is connected differently, and the results are different.CAN is the abbreviation for Controller Area Network, which was developed by BOSCH, a German company known for its research, development, and production of automotive electronic products, and eventually became an international standard (ISO11898).CAN is the abbreviation for ControllerAreaNetwork (hereinafter referred to as CAN), which is an ISO international standardized serial communication protocol. abbreviation for ControllerAreaNetwork (hereinafter referred to as CAN), which is an ISO internationally standardized serial communication protocol. In the automobile industry, a variety of electronic control systems have been developed to meet the requirements for safety, comfort, convenience, low public hazards, and low cost. Since the types of data used for communication between these systems and the requirements for reliability vary, there are many cases consisting of multiple buses, and the number of wire harnesses has increased. In 1986, Bosch, a German electrician, developed the CAN communication protocol for automobiles in order to reduce the number of wiring harnesses and to enable high-speed communication of large amounts of data over multiple LANs. Since then, CAN has been standardized by ISO11898 and ISO11519, and has been the standard protocol for automotive networks in Europe. CAN's high performance and reliability have been recognized and widely used in industrial automation, ships, medical equipment, industrial equipment, and so on. Fieldbus is one of the hotspots of technological development in the field of automation today, and is known as the computer LAN in the field of automation. Its emergence for distributed control systems to achieve real-time, reliable data communication between the nodes provides strong technical support.