Modern cars aren't just mechanical anymore. They run on a complex network of...

https://telegra.ph/Commercial-Truck-Diagnostics-vs-Passenger-Cars-Why-Your-Shop-Needs-to-Pivot-04-16

Modern cars aren't just mechanical anymore. They run on a complex network of ECUs that communicate in languages basic code readers simply cannot translate. If you rely on a generic scanner, you are only seeing a tiny fraction of the picture