Hi, we have a 2019 Mustang Ecoboost with 6500 miles. Today I scanned the mustang using BlueDriver scanning tools just to be sure nothing wrong with the car. The scanning tool providing me code P05A1-00 Active Grille Air Sutter "A" position Sensor Min/Max  Stop Perfoemcne: N0 Sub Type Information.  

I let the car cool for a few minutes, then I started to the car and looking to the Sutter. I noticed that the Grille shutter keeps closing and opening (keep waving) and does not stay in one position (closed or open). I assume this is not normal because it is should not keep waving and it should stay in one position according to the car temp? 

Best regards,

Ahmad