Ground Circuit Inspection

IG "OFF".
Disconnect IATS connector.
IG "ON" & ENG "OFF"
Measure voltage between terminal 3 of IATS harness connector and chassis ground (A)
Measure voltage between terminal 3 and 4 of IATS harness connector. (B)
1. Specification : "A" - "B" = Below 200 mV
  
  Fig 1: Measuring Voltage Between Terminal 3 Of IATS Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
  
  Fig 2: Measuring Voltage Between Terminal 3 And 4 Of IATS Harness Connector
  Courtesy of HYUNDAI MOTOR CO.
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.