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

https://www.cast-bookmarks.win/thinking-a-generic-obd-ii-scanner-can-handle-your-european-car-s-quirks-think

Generic OBD-II scanners only scratch the surface when it comes to European cars in Malaysia. These vehicles use manufacturer-specific codes that generic tools can miss, leading to misdiagnoses