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Home >> Kia >> 2017 >> Forte EX >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System >> Ambient Temperature Sensor >> Repair Procedures >> Inspection
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Repair Procedures: Inspection

  1. Turn the ignition switch OFF.
  2. Disconnect ambient temperature sensor.
  3. Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.
    Fig 1: Checking Resistance Of Ambient Temperature Sensor Between Terminals 1 And 2
    G12166727Courtesy of KIA MOTORS AMERICA, INC.
    RESISTANCE SPECIFICATION

    Ambient Temperature [°C (°F)] Resistance Between Terminals 1 And 2 (kΩ±3%)
    -30 (-22) 480.41
    -20 (-4) 271.21
    -10 (14) 158.18
    0 (32) 95.10
    10 (50) 58.80
    20 (68) 37.32
    30 (86) 24.26
    40 (104) 16.13
    50 (122) 10.95
  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 it.
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