Active Grille Air Shutter A Control Circuit Low

Common symptoms

What you'll notice

• Inspect the wiring and connectors related to the active grille air shutter control circuit for any damage or loose connections. Repair or replace as necessary.
• Check the active grille air shutter actuator motor for proper operation. Test and replace if deemed faulty.
• Verify the power and ground signals to the active grille air shutter control module. Repair any issues found.
• Reset the vehicle's computer system to clear any stored error codes. This may resolve the issue if it was a temporary glitch.
• If all else fails, consider replacing the active grille air shutter control module itself, as it may be malfunctioning.

Common causes

Most likely first

1. Faulty active grille air shutter control module
2. Loose or damaged wiring or connectors in the active grille air shutter circuit
3. Clogged or obstructed active grille air shutter mechanism
4. Malfunctioning engine coolant temperature sensor

How to diagnose & fix

Work through it in order

1. Engine misfires or runs rough
2. Decreased fuel efficiency
3. Check Engine light illuminates
4. Vehicle stalls or has difficulty starting
5. Overheating of the engine