Ground Circuit Inspection

Check open in harness
1. IG "OFF" and disconnect IATS connector and then IG "ON".
2. Measure voltage between signal terminal of IATS harness connector and chassis ground. (Measurement "A")
3. Measure voltage between signal and ground terminals of IATS harness connector. (Measurement "B")
  Specification: Voltage difference between measurement "A" and "B" is below 200mV
  
  Fig 1: Measuring Voltage Between Signal Terminal Of IATS And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
  
  Fig 2: Measuring Voltage Between Signal And Ground Terminals Of IATS
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured voltage within specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Repair contact resistance or open in harness and go to "VERIFICATION OF VEHICLE REPAIR " procedure.