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Home >> Kia >> 2021 >> Rio S, 4D Hatchback >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System >> Ambient Temperature Sensor >> Repair Procedures >> Inspection

Repair Procedures: Inspection

  1. Turn the ignition switch OFF.
  2. Disconnect ambient temperature sensor.
  3. Check the resistance of ambient temperature sensor between terminal "+" and "-" whether it is changed by changing of the ambient temperature.
    G13706652Courtesy of KIA MOTORS AMERICA, INC.

    Specification 

    RESISTANCE AND VOLTAGE SPECIFICATION

    Ambient temperature [°C(°F)] Resistance [kΩ] Voltage [V]
    -30(-22) 480.4 4.720
    -20(-4) 271.2 4.522
    -10(14) 158.1 4.225
    0 (32) 95 3.821
    10 (50) 58.7 3.322
    20 (68) 37.3 2.772
    30(86) 24.2 2.227
    40(104) 16.1 1.735
    50(122) 10.9 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. If the problem is corrected, replace the ambient temperature sensor.
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