INVESTIGATION OF THE INFLUENCE OF THE QUALITY OF DIAGNOSTICS AND REPAIR OF ELECTRONIC SYSTEMS ON THE FURTHER TECHNICAL OPERATION OF THE CAR

Abstract

The purpose of the article is to investigate how the quality of diagnostics and repair of vehicle electronic systems affects its further technical operation, to consider the key factors that determine the efficiency of these processes, and to propose recommendations for ensuring vehicle reliability. Scientific novelty. The article substantiates an integrated approach to assessing the impact of the quality of diagnostics and repairs on the technical operation of a vehicle, considering modern technologies (IoT, artificial intelligence, cloud solutions) and the specifics of electrified vehicles. The novelty lies in the systematization of the consequences of poorquality service and the emphasis on economic and environmental aspects. Results. The study showed that accurate diagnostics using modern equipment, such as OBD scanners, computer systems, and IoT sensors, allows timely detection of malfunctions in-vehicle electronic systems such as ECU, ABS, ESP, and electric vehicle batteries, which significantly reduces repair time and prevents damage to adjacent components. For example, quickly identifying the root cause of a single component failure (such as voltage stabilization capacitors or sensors) can save entire modules from overloading. High-quality repairs using original spare parts and qualified personnel increase operational safety – in particular, the serviceability of safety systems (ABS, ESP, airbags) reduces the risk of accidents and extends the vehicle’s life by reducing wear and tear on key components. It has been proven that using certified analogs instead of cheap counterfeits ensures the compatibility and durability of the systems, while low-quality components lead to repeated breakdowns after 3–6 months of operation. The economic effect of high-quality service is manifested in a reduction in total repair costs (up to 30 % per year) and an increase in the residual value of the car on the secondary market (by 10–15 %, according to experts). Instead, poor diagnostic quality, for example, due to outdated equipment or insufficient qualifications of technicians, leads to erroneous conclusions, which results in unstable systems, increased CO2 emissions (up to 20 % in the case of engine malfunctions), and a 25–30 % reduction in vehicle life. The use of advanced technologies, such as artificial intelligence and predictive analytics, can predict breakdowns with an accuracy of up to 85 %, which is confirmed by research, contributing to a preventive approach, and reducing accidents. Conclusions. The quality of diagnostics and repair is a critical factor in ensuring reliable and safe vehicle operation. Investing in professional equipment, staff training, and regular preventive maintenance can minimize the risk of breakdowns and optimize the technical condition of the vehicle in the long term.