Component Inspection

Check IATS resistance

Measure resistance between signal and ground terminals of IATS connector after checking out the temperature of IATS with GDS (Component Side)

Specification:

RESISTANCE REFERENCE CHART

Temp. (°C)	Resistance (kΩ)	Temp. (°C)	Resistance (kΩ)
-40	95.95 ~ 105.78	20	3.42 ~ 3.61
-20	27.4 ~ 29.77	40	1.43 ~ 1.5
0	9.08 ~ 9.72	60	0.66 ~ 0.69
10	5.49 ~ 5.83	80	0.33 ~ 0.34

Fig 1: Measuring Resistance Between Signal And Ground Terminals Of IATS Connector

Courtesy of HYUNDAI MOTOR CO.

Is the measured resistance within specification?
YES
- Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known - good IATS and check for proper operation. If the problem is corrected, replace IATS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.