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Home >> Kia >> 2021 >> Rio S, 4D Hatchback >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater System >> Temperature Control Actuator >> Repair Procedures >> Inspection

Repair Procedures: Inspection

  1. Turn the ignition switch OFF.
  2. Disconnect the temperature control actuator connector.
  3. Verify that the temperature control actuator operates to the warm (LHD) or cool (RHD) position when connecting 12V to the terminal 3 and grounding terminal 4.

    Verify that the temperature control actuator operates to the cool (LHD) or warm (RHD) position when connecting in the reverse.

    G13706671Courtesy of KIA MOTORS AMERICA, INC.
  4. Connect the temperature control actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminal 6 and 5 (LHD) or 7 (RHD).

    Specification 

    VOLTAGE SPECIFICATION

    Door position Voltage (V) Error detecting
    Max. cooling 0.4 Low voltage: 0.1V or less
    Max. heating 4.6 High voltage: 4.9V or more

    It will feedback current position of actuator to controls.

  7. If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.
  8. If the problem is corrected, replace the temperature control actuator.
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