The standard, commonly known as Unified Diagnostic Services (UDS) , defines the application layer protocols for road vehicle diagnostics. As of April 2026, the standard is in a transitional phase between the 2020 edition (with its 2022 amendment) and a forthcoming major update. Latest Official Status Current Active Version : ISO 14229-1:2020 .
Instead of a raw PDF (which is often taken down due to copyright), developers use these highly active, updated implementations: iso 142291 pdf github updated
Assuming that an updated PDF of ISO 14229-1 has been uploaded to GitHub, this update likely includes: ISO 14229-1 The standard, commonly known as Unified
: A platform-agnostic C library currently under development to cover the full specification. What You WILL Find on GitHub (The Legal,