What is OBD? What You Need to Know - AutoZone
On-Board Diagnostics (OBD) is a system that monitors a car’s computer system and reports diagnostic trouble codes. Devices like an OBD-II code reader can read diagnostic trouble …
On-board diagnostics - Wikipedia
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 Testing | Department of Public Safety
OBDII testing uses a scan tool that plugs into the vehicle's computer and determines that the emission system and components are working properly. The test downloads stored …
What is OBD? Understanding On-Board Diagnostics - Noregon
OBD stands for On-Board Diagnostics and is a computer system inside of a vehicle that tracks and regulates a car’s performance. This on-board computer system collects information from …
Everything You Need To Know About OBD, OBD II - Digital Trends
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 …
Vehicle Emissions Inspection Type and Certified Analyzers
May 1, 2023 · On-Board Diagnostics (OBD): Computer system installed in a vehicle by the manufacturer which monitors the performance of the emission control equipment, fuel …
What Does OBD Stand For? The Automotive Acronym Explained
May 19, 2025 · OBD in automotive stands for On-Board Diagnostics. This built-in system monitors your car's key functions and informs you whenever something is amiss, usually by triggering …
On Board Diagnostics (OBD): What Is It and What Does It Mean to …
Oct 12, 2023 · OBD, or on board diagnostics, was introduced by General Motors in 1981 to monitor the emission control system in the car. In 1986 California mandated that all cars sold …
OBD1 vs OBD2: What's the Difference? - Auto Insights
May 4, 2025 · On-Board Diagnostics (OBD) is a standardized system built into vehicles to monitor and report various aspects of engine and emissions system performance. It plays a crucial role …
How OBD Works - OBD Guides
Learn how OBD systems function with sensors and codes to monitor vehicle performance, detect malfunctions, and ensure optimal efficiency and safety.