OBD-II code · Body
B0330 HVAC Rear Blower Motor Circuit
The HVAC controller reports a fault in the rear blower motor circuit, used in vehicles with rear climate zone.
Is it safe to drive with B0330?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyRear blower resistor failed
- PossibleRear blower motor worn
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
- 0.8–3 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.