Modern vehicles are basically rolling computers. When a warning light pops up,...
https://www.bookmarkingtraffic.win/generic-obd-readers-only-scratch-the-surface-by-reading-basic-engine-codes
Modern vehicles are basically rolling computers. When a warning light pops up, a basic code reader only tells you a small part of the story. You need professional diagnostic software to talk to every ECU and view high-speed live data in real time