Automotive diagnostics
Can a Free OBD‑II App Replace a Professional Scanner? A Side‑By‑Side Look
A free OBD-II app can spot common codes, but it falls short for deep diagnostics. I’ll show you when the convenience of a free app outweighs its limitations, and when a professional scanner is still worth the investment. Introduction: The Check-Engine Light Dilemma When that amber halo pops on