July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Signal Circuit Inspection

Check for Open or Short in signal circuit
1. IG KEY "OFF".
2. Disconnect IATS connector.
3. IG KEY "ON" & ENG "OFF"
4. Measure voltage between signal terminal of IATS harness connector and chassis ground.
  Specification : Approx. 5V
  
  Fig 1: Measuring Voltage Between Signal Terminal Of IATS Harness Connector & Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured voltage within specification?
  YES
  
  Go to "Check for Short to ground in signal circuit " procedure.
  
  NO
  
  Check for Open or Short in signal circuit. Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Check for Short to ground in signal circuit
1. IG KEY "OFF".
2. Disconnect IATS and ECM connector.
3. Measure resistance between signal and ground terminals of IATS harness connector.
  Specification : Infinite
  
  Fig 2: Measuring Resistance Between Signal & Ground Terminal Of IATS Harness Connector
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specification?
  YES
  
  Go to "GROUND CIRCUIT INSPECTION " procedure.
  
  NO
  
  Check for Short to ground in signal circuit.
  
  Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.