What does code U0164 mean?

Lost Communication With HVAC Control Module: Communication with the HVAC control module has been lost.

U0164 is rated as low severity. Minor issue — monitor and fix at convenience.

U0164

Lost Communication With HVAC Control Module

Network Code · Low

What does U0164 mean?

Communication with the HVAC control module has been lost.

System: Module Communication

U0164 is a network diagnostic trouble code indicating lost communication with hvac control module. This code is classified as low severity, which means: minor issue — monitor and fix at convenience.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.