OBD-II code · Body
B0150 HVAC Mode Door Range/Performance
The HVAC control module has detected that the air distribution mode door (e.g. floor/face/defrost) does not reach the commanded position within the expected time. The actuator may be stuck, the door binding, or the position feedback inaccurate.
Is it safe to drive with B0150?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyMode door actuator motor failed
- PossibleMode door mechanically binding
- Less likelyWiring or connector fault to actuator
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
- 0.5–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Mode Door Actuator, HVAC Control Module, Mode Door Linkage
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.