4. Check For Open In Harness

1. Turn ignition to OFF position and disconnect ECM connector.
2. Measure resistance between terminal 5 of the IATS harness connector and 56 of the ECM harness connector.
3. Measure resistance between terminal 1 of the IATS harness connector and 48 of the ECM harness connector.
   Fig 1: Checking IATS Harness For Open Circuit

   Courtesy of HYUNDAI MOTOR CO.

• Specification : below 1Ω 

Does each resistance indicate continuity? 

Yes: Go to next step.

No: Repair open in harness.