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Design of Fault Diagnosis of Automobile Lights Based on CAN/LIN Bus

Based on the research of the CAN/LIN bus communication protocol, an automobile lamps diagnostic system based on the CAN/LIN bus is designed. After the completion of the software and hardware designs of CAN nodes, LIN nodes and CAN/LIN nodes, the faults of automobile lamps can be successfully diagnosed. LIN node collects light switches and the gateway controls the car lights status via detecting the data frame on the LIN bus. The design and complementation of CAN node, LIN node and CAN/LIN gateway was finished, which made it possible to detect failures in vehicle.