P05B5
Active Grille Air Shutter B Supply Voltage Circuit Open
Active Grille Air Shutter B Supply Voltage Circuit Open: the circuit is open. Active grille shutters manage airflow for engine cooling and aerodynamics.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Supply fuse blownCommon
- Pin pushed back out of connector bodyLess likely
- Cracked solder joint inside the module or sensorLess likely
Parts involved
- Active Grille Actuator B
- Active Grille Supply Relay
P05B5 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.