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Repair procedures: Inspection

WARNING: This page is about a different car, the 2014 Hyundai Elantra GT and 2013 Hyundai Elantra GT. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch OFF.
  2. Disconnect the temperature control actuator connector.
  3. Verify that the temperature control actuator operates to the warm position when connecting 12V to terminal 3 and grounding terminal 4.

    Verify that the temperature control actuator operates to the cool position when connected in reverse.

    Fig 1: Control Actuator - Circuit Diagram
    G09887929Courtesy of HYUNDAI MOTOR AMERICA
  4. Connect the temperature control actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminal 4 and 5.
    TEMPERATURE CONTROL ACTUATOR SPECIFICATION

    Door position Voltage (V) Error detecting
    Max. cooling 0.3 ± 0.15V Low voltage:
    0.1V or less
    Max. heating 4.7 ± 0.15V High voltage:
    4.9V or more

    It will feedback the current position of the actuator to the 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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