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CAN J1939

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**CAN J1939**

What is CAN J1939?

SAE J1939 is a communication protocol used for communication and diagnostics in heavy-duty vehicles, particularly in the trucking, construction, and agricultural industries. It is based on the CAN (Controller Area Network) bus and defines a standard for the exchange of data between ECUs (Electronic Control Units) within the vehicle. It's commonly used for engine control, transmission control, braking systems, and other vehicle functions, providing a standardized way for different components to communicate and share information.

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