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Home >> Kia >> 2017 >> Cadenza Technology >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater System >> Mode Control Actuator >> Repair Procedures >> Inspection

Repair Procedures: Inspection

  1. Turn the ignition switch OFF.
  2. Disconnect the mode control actuator connector.
  3. Verify that the mode control actuator operates to the defrost mode when 12V is connected to terminal 3 and ground to terminal 7.

    Verify that the mode control actuator operates to the vent mode when connected in reverse.

    Fig 1: Checking Mode Control Actuator Operates To Defrost Mode
    G12288517Courtesy of KIA MOTORS AMERICA, INC.
  4. Connect the mode control actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminals 5 and 6.
    DOOR POSITION SPECIFICATION

    Door position Voltage (V) Error detecting
    Vent 0.3 ± 0.15 Low voltage: 0.1V or less
    High voltage: 4.9V or less
    Defrost 4.7 ± 0.15

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

  7. If the measured voltage is not within the specification, substitute with a verified temperature control actuator and check for proper operation.
  8. Replace the mode control actuator if it is proved that there is a problem with it.
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