Clear Diagnostic Information (UDS 0x14) Made Simple | Automotive Diagnostics Series

Understanding the fundamentals of automotive diagnostics is essential for every Embedded Engineer. One of the most frequently used services in Unified Diagnostic Services (UDS) is Clear Diagnostic Information (Service 0x14) — the primary way a tester wipes fault data from an ECU. In this video, we break down: ✅ What is Service 0x14? – Its core purpose in the diagnostic lifecycle. 🧠 The Request Structure – Explaining the groupOfDTC parameter (High, Middle, and Low bytes). ⚙️ What actually gets cleared? – Insights into DTC status bytes, snapshot data, and extended data. 🔄 Positive vs. Negative Responses – Why the ECU might send a positive response even if no faults exist. 🚫 Common NRCs – Handling codes like 0x13, 0x22, 0x31, and 0x72. This video is part of our Automotive Diagnostics Basics series — crafted to simplify complex topics and help you build a strong foundation in UDS. Our mission at Autoslearn is to empower Automotive Embedded Engineers with practical, easy-to-understand knowledge — helping you grow in your development journey and make impactful contributions to the industry. 👉 Don’t forget to like, share, and subscribe for more deep dives into automotive concepts! Follow us on: 🔗 LinkedIn: /82553747 ▶️ YouTube: /@autoslearn #automotive #automotivediagnostics #embeddedengineering #udsprotocol #servicerequest #WriteMemoryByAddress #Autoslearn #EngineeringSimplified #AutomotiveEducation #LearnWithUs #AutomotiveTech #FutureOfMobility