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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 94 (Air Conditioning System (HEV)) >> Ambient Temperature Sensor >> Repair Procedures >> Inspection

Repair Procedures: Inspection

WARNING: This page is about a different variant/trim than selected.
  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 Between Ambient Temperature Sensor Terminals 1 And 2
    G10590509Courtesy of HYUNDAI MOTOR AMERICA
    AMBIENT TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS

    Ambient temperature [°C (°F)] Resistance between terminals 1 and 2 (k Ω)
    -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) 23.76
    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 the sensor.
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