Active Grille Air Shutter A Control Circuit High

Common symptoms

What you'll notice

• Check and clean the air intake system to ensure proper functioning of the active grille air shutter.
• Inspect the wiring and connectors related to the active grille air shutter for any damage or loose connections.
• Replace the faulty active grille air shutter control module if necessary.
• Perform a software update or reprogram the active grille air shutter control module to resolve any software
• related issues.
• If all else fails, replace the entire active grille air shutter assembly.

Common causes

Most likely first

1. Faulty active grille air shutter control module
2. Short circuit in the active grille air shutter control circuit
3. Open circuit in the active grille air shutter control circuit
4. Malfunctioning active grille air shutter actuator
5. Defective wiring or connectors in the active grille air shutter control circuit

How to diagnose & fix

Work through it in order

1. Engine overheating
2. Decreased fuel efficiency
3. Malfunctioning air conditioning system
4. Rough or erratic engine idle
5. Check engine light illuminated