U1008 KIA - Lost Communication with Radiator Shutter

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Active Air Flap (AAF) system
  • Engine Control Module (ECM) np communication with Active Air Flap (AAF) system
  • Active Air Flap (AAF) system harness is open or shorted
  • Active Air Flap (AAF) system poor electrical connection
  • Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • U1008 Kia Description

    Lost Communication with Radiator Shutter also known as Active Air Flap.

    Active Air Flap (AAF) system is equipped with a flip can be opened between radiator grille and radiator. During High speed driving, it will enhance the driving stability by closing the flap to reduce the air resistance. The Engine Control Module (ECM) will open the flap function if the inside the engine room temperature rises. The ECM sets the OBDII code when the Active Air Flap (AAF) system is not working to factory specifications.

    OBDII Code U1008 Kia - Lost Communication with Radiator Shutter - AutoCodes.com

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