Repair Procedures: Inspection

WARNING: This page is about a different car, the 2015 Kia Forte5, 2015 Kia Forte Koup, and 2015 Kia Forte. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition switch OFF.
Disconnect ambient temperature sensor.

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

Fig 1: Checking Ambient Temperature Sensor Resistance

Courtesy of KIA MOTORS AMERICA, INC.

RESISTANCE AND TEMPERATURE REFERENCE

Ambient Temperature [°C(°F)]	Resistance Between Terminals 1 And 2 (kΩ±3%)
-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)	24.26
40 (104)	16.13
50 (122)	10.95

If the measured resistance is not within specification, substitute with a known-good ambient temperature sensor and check for proper operation.
Replace the ambient temperature sensor if it is proved that there is a problem with it.