On-board diagnostics (OBD) is a term referring to a vehicle's self-diagnostic and reporting capability. In the United States, this capability is a requirement to comply with federal …

Nov 19, 2025 · Did your vehicle's check-engine light just pop on? An OBD-II scanner can point you in the right direction—and potentially save you a bundle. This article was updated in …

OBD-I refers to the first generation of on-board diagnostic systems, which featured proprietary connectors, hardware interfaces, and protocols.

May 6, 2025 · An OBDII is, simply put, the second generation of an OBD or OBD I. The OBD I was initially externally connected to the console of a car, while the OBDII is now integrated …

Jul 23, 2025 · OBD-II (On-Board Diagnostics, Second Generation) is a vehicle monitoring system that tracks the performance of the engine, transmission, and other critical components. It uses …

Sep 15, 2025 · That's where OBD-II scanners come in, giving enthusiasts and everyday drivers a window into their vehicle's diagnostic systems.

Oct 10, 2023 · OBD II systems monitor various aspects of a vehicle’s performance using sensors and diagnostic equipment. These systems constantly collect data from different components, …

May 9, 2025 · When I first answered the auto DIY call, there were a few questions I needed answers to; answers I believed would define my very existence as a vehicle owner interested …

Jul 18, 2025 · Automotive OBD2 scanners and car code readers are the easiest and least expensive ways to find out why your engine light is on and get it to turn off. I’ve used dozens of …

Dec 12, 2025 · In this article, we will explore the 10 best OBD2 scanners of 2025, reviewing their features, specifications, pros, and cons, to help you make an informed decision. Why You …