Body
generic / SAE
B0278
HVAC Defrost Door Circuit
A fault is detected in the HVAC defrost door actuator circuit; defrost airflow may not engage.
SystemBody
Typegeneric / SAE
GroupB0
Range / number2 / 78
Possible causes
- Defrost actuator failed high
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.8–3 h
- Component: hvac defrost actuator
- Component: hvac control module
Sources
References
sae:J2012