B0273
HVAC Recirculation Door Circuit
The HVAC recirculation door actuator circuit has reported a fault. Fresh/recirculated air switching may not work.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: medium
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
Ordered by how often each turns out to be the cause.
- Recirculation actuator failedCommon
- Recirculation door stuckPossible
Parts involved
- Hvac Recirculation Actuator
- Hvac Control Module
B0273 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.