Generic OBD-II scanners only scratch the surface when it comes to European cars...

https://www.pawn-bookmarks.win/if-you-own-a-european-car-in-malaysia-a-generic-obd-ii-scanner-won-t-cut-it

Generic OBD-II scanners only scratch the surface when it comes to European cars in Malaysia. These vehicles use manufacturer-specific codes that require specialist diagnostics to pinpoint issues accurately