The application of electronic and electrical technology in automobile maintenance is very common,and technicians use electrical and electronic technology to detect and record the parameters of the vehicle system in real time,and analyze and diagnose whether there are problems and faults in the operation of the automobile system.The application of electronic and electrical technology has significantly enhanced the accuracy of fault location and the efficiency of circuit repair in the field of automobile maintenance,effectively optimized the maintenance quality of vehicle systems,and ensured the stability and safety of automobile operation.