Body
Definition only
B0263: HVAC Air Mix Door 2 Circuit
Standardized SAE J2012 code · B02xx codes
What does B0263 mean?
A fault has been detected in the air mix door 2 actuator circuit, used in dual-zone HVAC systems for the passenger side.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
- High Actuator motor failure
- Medium Mix door jammed
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of B0263 on the same make and model first.
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