Code result
B0263
HVAC Air Mix Door 2 Circuit
Moderate severity
What it means
A fault has been detected in the air mix door 2 actuator circuit, used in dual-zone HVAC systems for the passenger side.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Actuator motor failure
highOne of the most commonly reported causes for this code — check this first.
Mix door jammed
mediumA plausible cause — test and verify before replacing parts.
Related help
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