P2C73
Active Grille Air Shutter C Stuck On
Active grille air shutter C stays in the open position when commanded to close. Aerodynamic drag and warm-up time are affected.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Shutter actuator mechanically stuckCommon
- Linkage iced or jammedPossible
- Carbon or debris buildup preventing free movementLess likely
Parts involved
- Active Grille Shutter C
- Wiring Harness
- ECM
P2C73 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.