OBD-II code · Body
B0184 Rear Blower Motor Circuit
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.
Is it safe to drive with B0184?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyRear blower motor failed
- PossibleRear blower resistor failed
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Rear Blower Motor, Rear Blower Resistor, HVAC Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.