Kia Stinger CK: Air Conditioning System / Evaporator Temperature Sensor

Description and operation
Description

The evaporator temperature sensor detects the evaporator core temperature and interrupts compressor relay power in order to prevent evaporator from freezing by excessive cooling.

Repair procedures
Inspection
1.

Turn the ignition switch OFF.

2.

Disconnect the evaporator temperature sensor connector.

3.

Measure resistance between terminals “+” and “-” of the evaporator temperature sensor.

Specification

Evaporator core temperature
[°C (°F)]
Resistance[kΩ]
Voltage[V]
-10 (14)
43.35
2.96
0 (32)
27.62
2.4
10 (50)
18.07
1.88
20 (68)
12.11
1.44
30 (86)
8.3
1.08
40 (104)
5.81
0.81

4.

Connect the evaporator temperature sensor connector.

5.

Run the engine, turn the A/C switch ON, and then measure the voltage between the terminals of the harness connector.

Replacement
1.

Disconnect the negative (-) battery terminal.

2.

Remove the evaporator core assembly.

(Refer to Air Conditioning System - "Evaporator Core")

3.

Remove the evaporator temperature sensor (A) from evaporator sensor.

4.

Install in the reverse order of removal.

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Relay Box (Passenger Compartment)

Components and components location Component Location Integrated central control unit (ICU) Circuit (ICU Junction Block) Rear Sub Junction Block Description and operation Description Communication Network Diagram Abbreviation Explanation ACU Airbag Control Unit AFL Adaptive Front-Lighting System AMP

Kia Stinger (CK) 2018-2023 Service Manual: Engine Mechanical System

Repair procedures Compression Pressure Inspection    If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure. 1. Warm up and stop engine. Allow the engine to warm up to normal operating temperature.

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