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 …
OBD2 vs OBD1: Don't Buy a Scanner Until You Read This (2026 ...
Oct 13, 2025 · Before you buy one, it's crucial to understand the difference between OBD2 vs OBD1 — because if your car doesn't support the right system, that shiny new scanner might …