Repair procedures: Inspection

WARNING: This page is about a different car, the 2012 Hyundai Veloster. 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 terminal "+" and "-" whether it is changed by changing of the ambient temperature.

Fig 1: Checking Resistance Of Ambient Temperature Sensor Between Terminal + And -

Courtesy of HYUNDAI MOTOR AMERICA

TEMPERATURE RESISTANCE SPECIFICATION

Ambient temperature [°C (°F)]	Resistance [kΩ]
-30 (-22)	507± 3%
-20 (-4)	284.5 ± 3%
-10 (14)	164.2 ± 3%
0 (32)	97.5 ± 3%
10 (50)	59.6 ± 3%
20 (68)	37.46 ± 3%
30(86)	24.18 ± 3%
40(104)	16 ± 3%
50(122)	10.83 ± 3%

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.