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 …
OBD1 vs OBD2: What’s the Difference & Which Scanner Do You …
Dec 5, 2025 · Understanding the key differences between OBD1 vs OBD2 is essential whether you own a classic car or a modern vehicle. In this guide, we break down the history, features, …
OBD1 vs OBD2: Key Differences and What They Mean for Your …
Discover the key differences between OBD1 and OBD2 systems and how they impact your vehicle's performance. Read on to enhance your understanding.
Full OBD1 Code List And How To Read Them At Home
Mar 21, 2024 · In this guide, we will go through everything you have to know about OBD1 Trouble Codes. Learn to read the trouble codes without a scanner and the meaning.
OBD1 vs OBD2: Key Differences, Pros & Cons Explained
Sep 6, 2025 · Discover the main differences between OBD1 and OBD2 systems. Learn about features, benefits, compatibility, and which is better for your vehicle.
OBD1 vs OBD2: What Nobody Told You Before - OBD Advisor
Dec 2, 2017 · OBD1 is the On-board Diagnostics standard applied to vehicles made for California from 1991 to control vehicle emissions in this state. All cars marketed for this area had to be …
OBD1 vs OBD2 – Complete Comparison for Car Diagnostics
Jun 24, 2025 · There are two main versions of OBD system: OBD1 and OBD2.In this article, we’ll break down the key differences between OBD1 and OBD2, and explain what they mean for …
On-Board Diagnostics: First (OBD1) and Second (OBD2) Generation
Dec 26, 2023 · The first generation of Onboard Diagnostics came to be known as OBD1. OBD1 is a set of self-testing and diagnostic instructions programmed into the vehicle’s onboard computer.
OBD1 vs. OBD2: Definitive guide, interpretation and comparison
There are two main OBD systems, OBD1 and OBD2, used in the vehicles found on the roads. There’s a vast difference between the two as they differ in terms of standardization, features, …
Best OBD1 Scanner Reviews 2025 [Top 8 List By Experts]
Mar 4, 2025 · If your car was manufactured before 1996, finding a reliable OBD1 scanner can be challenging. That’s why we’ve compiled a list of the best automotive OBD1 scanners available.