B0175

HVAC Recirculation Door Performance

Moderate severity

The HVAC control module has detected that the recirculation door does not reach the commanded position within the expected time. The recirc door switches between fresh air and recirculated cabin air.

Common causes

Recirculation door actuator failed
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $90-550
Recirculation door mechanically binding
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $90-550
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does B0175 mean?

B0175 means "HVAC Recirculation Door Performance". It is a generic OBD-II code that points to a fault in the body.

What are the most common causes of B0175?

recirculation door actuator failed; recirculation door mechanically binding — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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