Active Grille Air Shutter B Control Circuit High

Common symptoms

What you'll notice

• Inspect the wiring and connections for any damage or loose connections.
• Check the control module for any fault codes and reset if necessary.
• Test and replace the Active Grille Air Shutter B Control Circuit High sensor if it is found to be faulty.
• Inspect the air intake system for any obstructions or debris that may be causing the issue.
• If all previous steps fail to resolve the issue, consider replacing the control module responsible for the Active Grille Air Shutter B Control Circuit High.

Common causes

Most likely first

1. Faulty grille air shutters
2. Issues with the control circuit
3. Malfunctioning sensor or sensor circuit
4. Wiring or connection problems related to the control circuit
5. Engine or vehicle computer malfunction

How to diagnose & fix

Work through it in order

1. Engine stalling or rough idling
2. Decreased fuel efficiency
3. Malfunctioning cooling system
4. Overheating of the engine
5. Illumination of the check engine light