Kia Rio YB Quiz
Heating, Ventilation, and Air Conditioning

Evaporator Temperature Sensor

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 8Maintenance — 31Engine Mechanical System — 44Engine Electrical System — 14Emission Control System — 9Engine Control System/Fuel System — 30Clutch System — 10Manual Transmission — 10Automatic Transmission — 23Drive Shaft and Axle — 8Suspension System — 15Steering — 9Restraints — 14Brake System — 22Body (Interior and Exterior) — 115Body Electrical System — 84Heating, Ventilation, and Air Conditioning — 28
9steps
~54min
2/5difficulty
Done 0 of 9

Description and Operation

Description

The evaporator temperature sensor detects the evaporator core temperature and turns off the compressor relay power to prevent the evaporator from overcooling and freezing.

Repair Procedures

Inspection

  1. Turn the ignition off.

  2. Disconnect the evaporator temperature sensor connector.

  3. Measure the resistance between the "+" and "-" terminals of the evaporator temperature sensor.

  4. Connect the evaporator temperature sensor connector.

  5. Start the engine and turn on the A/C switch, then measure the voltage between the terminals of the harness connector.

    Specification

    Evaporator core temperature [°C (°F)] Resistance [kΩ]
    -10 (14) 17,7 - 18,2
    0 (32) 11,3 - 11,5
    10 (50) 7,3 - 7,5
    20 (68) 4,8 - 5,0
    30 (86) 3,2 - 3,4
    40 (104) 2,2 - 2,4

Replacement

  1. Disconnect the negative (-) battery terminal.

  2. Disconnect the evaporator temperature sensor connector (A).

  3. Remove the evaporator temperature sensor (A) by pulling it out after turning it 90° counterclockwise.

  4. Installation is the reverse of removal.

Test yourself

A quick Kia Rio YB quiz: every answer comes with an explanation and a link to the manual page.