P05A9
Active Grille Air Shutter B Position Sensor Circuit
Active Grille Air Shutter B Position Sensor Circuit: an electrical fault is present in the circuit. Active grille shutters manage airflow for engine cooling and aerodynamics.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Open in sensor or wiringCommon
Parts involved
- Active Grille Position Sensor B
P05A9 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.