Generic OBD-II scanners can only read basic fault codes, but European cars...

https://www.mediafire.com/file/jptq5jwabdh6pgv/pdf-41845-95355.pdf/file

Generic OBD-II scanners can only read basic fault codes, but European cars often use manufacturer-specific systems that need specialist diagnostics to pinpoint issues. Using counterfeit parts risks more damage and costly repairs