B0184

Rear Blower Motor Circuit

Moderate severity

The HVAC control module has detected a fault in the rear blower motor circuit, used in vehicles with separate rear climate zones. Symptoms include no rear airflow or rear blower stuck on.

Common causes

Rear blower motor failed
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $110-660
Rear blower resistor failed
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $110-660
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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 B0184 mean?

B0184 means "Rear Blower Motor Circuit". It is a generic OBD-II code that points to a fault in the body.

What are the most common causes of B0184?

rear blower motor failed; rear blower resistor failed — 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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