What it means
Active Grille Air Shutter A Supply Voltage Circuit Open: the circuit is open. Active grille shutters manage airflow for engine cooling and aerodynamics.
At a glance
- Usually lights the check-engine light
How it works
Active Grille Air Shutter A needs a supply-voltage circuit to power its actuator and move the shutters. This code sets when that supply path is open, so the actuator may stop working and leave Shutter A in one position.
Common causes
Most likely first.
- Supply fuse blown
- Pin pushed back out of connector body
- Cracked solder joint inside the module or sensor
Symptoms
- Check-engine light
- Active grille shutter warning, if equipped
- Shutters may stop moving or remain in one position
How to diagnose it
- Review freeze-frame data and live Shutter A status to confirm that the actuator has lost operation.
- Inspect the supply fuse identified in the vehicle wiring information and check whether it is blown.
- Inspect the actuator connector for loose or pushed-back pins, corrosion, water entry, or damaged wiring.
- Check supply-circuit continuity and the connector terminal fit using the wiring diagram and manufacturer's procedure.
- If the supply path is intact, test the actuator and module connections to locate the open circuit.
Common fixes
- Replace a blown supply fuse with the specified type after checking for an underlying short.
- Reconnect a loose Shutter A supply connector.
- Repair an open supply wire or replace a damaged terminal or connector.
- Repair an internal open in the actuator or module if circuit tests identify it.
Can I keep driving?
The shutters may stop moving, so monitor engine temperature, especially during hot weather or heavy driving. Stop safely if the engine overheats.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.