Repair procedures: Inspection

WARNING: This page is about a different car, the 2011 Hyundai Elantra. However, it is still accessible from the selected car via links, so may be relevant.

Ignition "OFF"
Disconnect ambient temperature sensor.

Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature.

Fig 1: Checking Resistance Of Ambient Temperature Sensor Between Terminals 1 And 2

Courtesy of HYUNDAI MOTOR CO.

Specification

RESISTANCE SPECIFICATION

Ambient temperature [°C(°F)]	Resistance between terminals 1and 2 (kΩ)
-30(-22)	480.41
-20(-4)	271.21
-10(14)	158.18
0 (32)	95.10
10 (50)	58.80
20 (68)	37.32
30(86)	23.76
40(104)	16.13
50(122)	10.95

If the measured resistance is not specification, substitute with a known-good ambient temperature sensor and check for proper operation.
If the problem is corrected, replace the ambient temperature sensor.