Scheduled or unscheduled inspection of the vehicle, testing and analysis of the operability of its systems, components and units. Diagnostics is a preventive measure for the timely detection of vehicle malfunctions that can lead to serious breakdowns and accidents. Diagnostics makes it possible not only to prevent serious damage, but also to save money on large-scale automotive service. Vehicle diagnostics methods depend on the unit checked and can be carried out independently. However, it is preferable to carry out diagnostics at service stations that have the tools required for high-quality diagnostics. Currently, the most popular method of vehicle inspection is computer diagnostics that involves the assessment of the vehicle condition using specialized equipment and software. Vehicle diagnostics must be carried out regularly, as this is a guarantee of safe and long-term operation of your vehicle.