Modern cars are basically computers on wheels. If you’re still relying on a...

https://uniform-wiki.win/index.php/Stop_Guessing:_How_to_Cut_Troubleshooting_Time_with_Advanced_Diagnostics

Modern cars are basically computers on wheels. If you’re still relying on a basic OBD reader, you’re only seeing the surface of the problem. You need professional diagnostic software to talk to every ECU and actually read the live data streams