Modern cars are basically networks of rolling computers. When a warning light...

https://www.save-bookmarks.win/modern-cars-are-basically-networks-of-rolling-computers-when-a-warning-light

Modern cars are basically networks of rolling computers. When a warning light pops up, your basic code reader only gives you a surface-level hint. It cannot talk to the specific ECUs that control your transmission, body modules, or advanced safety systems