On-board diagnostics - Wikipedia
OBD-II standardization was prompted by emissions requirements, and though only emission-related codes and data are required to be transmitted through it, most manufacturers have …
OBD2 Explained - A Simple Intro [2025] – CSS Electronics
What is OBD2? 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 …
Tested: Best OBD-II Scanners for 2026 - Car and Driver
Nov 19, 2025 · Tested: Best OBD-II Scanners for 2026 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 …
What Is the OBD-II Port [Working, History, and Uses]
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 …
What Are OBD-II Codes? A Complete Guide by Kelley Blue Book
Do you know what those fault codes displayed on your vehicle’s on-board diagnostics system mean? Check out our guide to OBD-II codes.
OBD2/OBDII: The Ultimate Guide to Onboard Diagnostics
Mar 3, 2025 · That's where Onboard Diagnostics (OBD2) comes in. OBD2 is a system that allows your car to communicate with you about potential faults. In this guide, we'll break down how …
Introduction to the OBD-II Standard - Kvaser
The OBD-II standard is a set of specifications and services based on the ISO 15031 standard and specify the type of OBD diagnostic connector, the electrical signaling protocols and the …
On-Board Diagnostic II (OBD II) Systems Fact Sheet
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, …
What is the OBD II Port For and What Can It Be Used For?
Jan 9, 2025 · What is the OBD II Port? The OBD II port is essentially the vehicle's communication hub, connecting to the car's onboard computer system. It's a standardized 16-pin connector …
Understanding What Is an OBD II: A Simple Guide for Car Owners
What is OBD II? OBD II, which stands for On-Board Diagnostics II, is a standardized system for self-diagnostics and reporting in vehicles. It functions as the vehicle’s built-in self-diagnostic …