Modern vehicles are basically rolling computers. When a warning light pops up,...

https://lukaszaph075.almoheet-travel.com/why-modern-cars-need-software-for-fuel-injection-issues

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