Computer diagnostics is designed to detect malfunctions in the functioning of complex vehicle components. As part of the check, the software is used to read and process the error codes. Car manufacturers recommend regular computer diagnostics. As part of diagnostics, a diagnostic scanner is connected to the vehicle's on-board system, which reads information about the vehicle and error codes. The resulting data is displayed on a single-channel multimeter and transmitted to an external computer and decrypted. After that, an expert receives a report on the state of the vehicle's electronic systems. The computer diagnostics process takes from 10 minutes to 2 hours.