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 Harness Connector And Chassis Ground (Measurement A)

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Measuring Voltage Between Signal And Ground Terminals Of IATS Harness Connector (Measurement B)

   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.