Signal Circuit Inspection

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