Kia Rio: Ambient Temperature Sensor Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect ambient temperature sensor.

Check the resistance of ambient temperature sensor between terminal “+” and “-” whether it is changed by changing of the ambient temperature.

Specification

Ambient temperature [°C(°F)]	Resistance [kΩ]	Voltage [V]
-30(-22)	507	4.720
-20(-4)	284.5	4.522
-10(14)	164.2	4.225
0 (32)	97.5	3.821
10 (50)	59.6	3.322
20 (68)	37.46	2.772
30(86)	24.18	2.227
40(104)	16	1.735
50(122)	10.83	1.323

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

5.	Replace the ambient temperature sensor if it is proved that there is a problem with the sensor.

Ambient Temperature Sensor Description

The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, ...

Ambient Temperature Sensor Replacement

1. Disconnect the negative (-) battery terminal. 2. Remove the engine room RH side under cover. (Refer to EM group - “Engine and Transax ...

Kia Rio: Ambient Temperature Sensor Inspection

Ambient Temperature Sensor Description

Ambient Temperature Sensor Replacement

See also: