July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC U0164: Lost Communication With HVAC Control Module: ETM

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.

For wiring diagram information, refer to appropriate SYSTEM WIRING DIAGRAMS article.