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U0164

U0164 means: Lost Communication With HVAC Control Module. The vehicle's main network has lost communication with the HVAC control module.

Lost Communication With HVAC Control Module

The vehicle's main network has lost communication with the HVAC control module.

SeverityMinor

CategoryHVAC

Est. Repair Cost$150-$400

Code TypeNetwork

DIY RepairProfessional

💡 Pro Tip: Start with the fuse box - a blown fuse dedicated to the HVAC module is a common, inexpensive cause of this communication loss.

What does OBD2 code U0164 mean?+

U0164 stands for Lost Communication With HVAC Control Module. The vehicle's main network has lost communication with the HVAC control module.

What causes code U0164?+

Blown fuse to HVAC module; Damaged CAN bus wiring; Failed HVAC control module; Corroded connector

How do I fix code U0164?+

Check HVAC module fuse; Inspect CAN bus wiring to module; Replace module if it does not respond

How much does it cost to fix U0164?+

Estimated repair cost for U0164 is $150-$400.

Is U0164 DIY-friendly?+

U0164 typically requires professional equipment and a qualified mechanic.