Design and implementation of Diagnostic system for Integrated body Controller Based on CAN bus

In the development and design process of automobile electronic control unit, the bus simulation test tool CANoe, developed by Vector can monitor and simulate the electronic control unit in real time, which brings convenience to the development of electronic control system and bus system. In this paper, the CANoe simulation software is used to test the integrated body control system of a certain vehicle, and the CANoe electronic unit diagnostic test case is written according to the UDS diagnostic service, so as to realize the functions of automatic fault simulation, fault diagnosis and test result analysis. Shorten the development cycle of the product, reduce the cost of product development and manufacture, and improve the quality of the product.