Modern cars are basically rolling computer networks. When you only use a basic...

https://www.bright-bookmarks.win/modern-vehicles-are-essentially-rolling-computer-networks-when-a-check-engine

Modern cars are basically rolling computer networks. When you only use a basic code reader, you’re just seeing the tip of the iceberg. You need OEM-level diagnostic software to talk to every ECU and view live data streams in real time