US Patent 11861954 Vehicle diagnostic system and method

A vehicle diagnostic system and method includes connecting a vehicle interface device to a diagnostic port of a vehicle to be in communication with an electrical system of the vehicle for diagnosing the vehicle, and running a selected one of multiple available diagnostic application scan programs via the vehicle interface device to generate a scan log file of the electrical system of the vehicle, where the scan log file is generated in one of a plurality of possible native file formats depending on the selected diagnostic application program. A diagnostic evaluation tool program extracts diagnostic data from the scan log file, where the diagnostic evaluation tool program is configured to extract diagnostic data from scan log files in each of the plurality of possible native file formats, and outputs the diagnostic data to a scan database in a common format from which detailed diagnostic reports are generated.