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 emissions standards to …

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 November 2025 …

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 sensors …

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 within the …

Mar 3, 2025 · Learn about OBD2, how it works, its compatibility, and how to read trouble codes. Discover the benefits of onboard diagnostics (OBDII) for car maintenance and repairs.

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, such as the …

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

OBD2 is your vehicle's built-in self-diagnostic system. It is a standardized protocol that allows extraction of diagnostic trouble codes (DTCs) and real-time data via the OBD2 connector. You've probably …

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 scan tools over …

Apr 25, 2023 · OBD stands for On-Board Diagnostic. It’s the standardized system that allows external electronics to interface with a car’s computer system. It has become more important as cars have …