Every year, cars are equipped with all new electronic control systems, so any minor repairs are difficult to carry out without computer diagnostics. A motor fault is detected by the injector-computer controller, and shows the driver errors on the instrument panel, signaling with the "Check Engine" indicator light. The error codes characterizing the engine malfunction are stored in the computer memory, which in turn corrects the engine, taking into account the detected error. After diagnostics, a specialist analyzing errors determines the causes of the malfunction and the best way to solve the problem. If the cause of the engine malfunction has been resolved and the engine is working properly, the errors must be deleted from the computer memory using specialized diagnostic equipment. The possibilities of diagnostic equipment: Search engine errors Clearing error codes Display of parameters in real time Adaptation of electronic control units, sensors and actuators Programming of service intervals Determination of the real mileage of the engine, and odometer correction