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Repair Procedures: Inspection

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  1. Ignition "OFF"
  2. Disconnect ambient temperature sensor.
  3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature.
    Fig 1: Checking Resistance Of Ambient Temperature Sensor Between Terminals 1 And 2
    G08309679Courtesy of KIA MOTORS AMERICA, INC.

    Ambient Temperature Sensor Connector Terminal Call-out

    1. Sensor Ground 2. Ambient Sensor Signal
    RESISTANCE SPECIFICATION

    Ambient temperature [°C(°F)] Resistance between terminals 1 and 2 (kΩ)
    -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 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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