garajizOBD-II code · generic
U0166
Lost Communication With Auxiliary Heater Control Module
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U0166 mean?
U0166 is defined as “Lost Communication With Auxiliary Heater Control Module”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U0165Lost Communication With HVAC Control Module Rear
- U0167Lost Communication With Vehicle Immobilizer Control Module
- U0164Lost Communication With HVAC Control Module
- U0168Lost Communication With Vehicle Security Control Module
- U0163Lost Communication With Navigation Control Module
- U0169Lost Communication With Sunroof Control Module
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.