HVAC Mode Door Position Sensor
The HVAC control module reports an implausible position signal from the mode (air distribution) door feedback sensor. Without valid feedback the actuator cannot be regulated to the correct position.
Affected components
- Mode door position sensor
- Mode door actuator
- Hvac control module
Common causes
- High likelihood: Mode door position sensor failed
- Medium likelihood: Wiring or connector fault to actuator
Possible symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.