1. It can set up 9 system faults for the whole vehicle. Each system can set 32X4 faults, and the whole vehicle can set 9X32X4 faults. 2. Can analyze and explain the whole vehicle circuit system, combined with learning measurement system and display system, can enable students to fully understand the relationship and principle between each circuit, intuitive display of the vehicle electrical components voltage, current, data flow and other real car data; 3. Partial cutting enables students to intuitively understand the internal structure of the car and the position of its components; And the actual state of the vehicle in operation.