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Repair Procedures: Inspection

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Switch "OFF" the ignition.
  2. Disconnect the auto defogging sensor connector.
  3. Connect the power (+) terminal to mode actuator connector terminal 3, and ground the negative (-) terminal to terminal 7. Then, inspect that the motor is operated in defrost mode. Reverse the connections to see that it operates in reverse.
    Fig 1: Auto Defogging Sensor Connector Terminals
    G12336161Courtesy of KIA MOTORS AMERICA, INC.
  4. Connect the auto defogging actuator sensor connector.
  5. Switch "ON" the ignition.
  6. Check the voltage between terminals 4 and 5.
    Fig 2: Checking Voltage Between Auto Defogging Actuator Sensor Terminals 4 And 5
    G12336162Courtesy of KIA MOTORS AMERICA, INC.

    Specification 

    Door Position Voltage (V) Error Detect
    DEF (ON) 1.7 ± 0.15V Low Voltage: 0.6V or less
    DEF (OFF) 4.7 ± 0.15V High Voltage: 4.7V or more

    It will feedback the current position of the actuator to controls.

  7. If the measured voltage does not satisfy the specifications, replace with a genuine auto defogging actuator.
  8. Replace the auto defogging actuator if it is proved that there is a problem with it.
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