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3. Check Power To IATS

  1. Turn ignition switch to OFF position and disconnect IATS connector.
  2. Turn ignition switch to ON position.
  3. Measure voltage between terminal 2 of the IATS harness connector and chassis ground.
    Fig 1: Checking IATS Power Supply
    G00748533Courtesy of HYUNDAI MOTOR CO.

Is voltage within specification? 

Yes: Go to next step.

No: Repair open or short to chassis ground in harness.