In this video, you'll learn about the diagnostic trouble code (DTC) U0164, which indicates a lost communication between the door multiplex control unit and the climate control unit in 2008-2012 Honda Accords. We'll cover the symptoms, possible causes, and detailed troubleshooting steps to effectively diagnose and resolve the issue, ensuring optimal HVAC system functionality. 🚗 Tools I Recommend for DIY Auto Diagnostics: 🔹 OBDLink MX+ Bluetooth OBD2 Scanner — perfect for mobile diagnostics 👉 https://amzn.to/4hpjZ7z 🔹 FOXWELL NT604 Elite — full-system scanner with live data 👉 https://amzn.to/47Ko5D5 🔹 VEVOR Tool Set 10–24 mm — all-in-one socket kit for any garage 👉 https://amzn.to/3IZWm97