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, …
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 …
OBD2 vs OBD1: Don't Buy a Scanner Until You Read This (2025 …
Oct 13, 2025 · But 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 …
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, …
OBD1
There are other styles of connectors, but the 12 pin OBD1 connector shown above is the most common. Some 1994-95 cars have the 16 pin OBD2 connector (shown below), Corvette's, …
How to Read OBD1 Codes on GM or Ford Vehicles (Pre-1996)?
Apr 10, 2025 · Learn how to read OBD1 codes easily on pre-1996 vehicles without a scan tool. Understand code meanings, connector locations, and differences.
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.
Complete OBD1 Code List and How to Read Them From Home
This is a complete OBD1 trouble code list. The meanings for these codes can vary slightly depending on the car model you own but are generally the same for all manufacturers.
What is difference between OBD1, OBD2, EOBD and EOBD2?
Oct 9, 2023 · OBD1 systems are more basic and less comprehensive than OBD2 systems. OBD1 systems typically only monitor emission control systems, while OBD2 systems monitor a wide …
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.