Kia Niro: Air Conditioning System / Ambient Temperature Sensor Repair procedures

Inspection
1.

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

1. Ambient sensor (+)

2. Sensor ground

Specification

Ambient temperature
[°C (°F)]
Resistance between terminals 1 and 2 (k?)
-30 (-22)
480.41
-20 (-4)
271.21
-10 (14)
158.18
0 (32)
95.1
10 (50)
58.8
20 (68)
37.32
30 (86)
23.76
40 (104)
16.13
50 (122)
10.95

Replacement
1.

Disconnect the negative (-) battery terminal.

2.

Remove the front bumper.

(Refer to Body - "Front Bumper Cover")

3.

Disconnect the connector (A) and remove the ambient temperature sensor (B).

4.

Install in the reverse order of removal.

Ambient Temperature Sensor Description and operation
Description Located at the front of the condenser, the ambient temperature sensor detects the ambient air temperature. It is a negative type thermistor; resistance will increase at lo ...

Auto Defogging Sensor Description and operation
Description Installed on the windshield glass, the auto defogging sensor detects humidity to blow out wind for defogging to improve visibility and driver comfort. The air conditioner ...

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