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Lost Communication With HVAC Control Module

Verified1 source
1 source
  • Official data (NHTSA)official_feed

What U0164 means

Safe to drive short-term

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

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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.

Common causes

  • Lost Communication With HVAC Control Module

What to check first

  1. Check wiring to the HVAC module
  2. Scan for related faults
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