What it means
The control circuit of active grille air shutter D reports a range/performance condition. Actuator response or current draw outside calibration.
At a glance
- Usually lights the check-engine light
How it works
Active grille shutter D is a movable grille panel controlled by an actuator and monitored through its control circuit. This code means the circuit response, actuator movement, or current draw for D falls outside the expected range, even if the shutter is not simply stuck open. A warning may appear and fuel economy may decrease.
Common causes
Most likely first.
- Actuator response slower than expected
- High-resistance contact in connector
- Sensor element aged beyond calibration window
Symptoms
- Check-engine light
- Reduced fuel economy
- Active grille shutter warning, if equipped
How to diagnose it
- Review freeze-frame data and live shutter data to see whether D responds slowly, reports an implausible position, or draws abnormal current.
- Inspect shutter D's blades and linkage for binding or damage that could make its response slow.
- Inspect the D actuator connector and harness for corrosion, loose pins, damaged insulation, or poor contact.
- Compare the actuator's movement and reported position with the other shutters while commanding D with a scan tool.
- Test the D circuit and actuator response against the manufacturer's specification, including checking for excessive resistance at connector contacts.
Common fixes
- Free shutter D's linkage if dirt or minor binding is slowing its response.
- Clean or repair corroded or loose actuator connector contacts.
- Repair damaged wiring in shutter D's control circuit.
- Replace the D actuator or its position sensing element if testing confirms it is outside calibration.
Can I keep driving?
You can usually drive cautiously if the vehicle has no power or temperature warning and the shutter is secure, but fuel economy may suffer. Stop if the shutter jams in a position that contributes to overheating.
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.