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Home › Hyundai › 2016 › Azera Base › Repair and Diagnosis › Heating, Ventilation & A/C (HVAC) › HVAC Control Systems › Heater System › Mode Control Actuator › Repair Procedures › Inspection

Repair Procedures: Inspection

  1. Ignition "OFF"
  2. Disconnect the connector of mode control actuator.
  3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to the terminal 3 and grounding terminal 7.
  4. Verify that the mode control actuator operates to the vent mode when connecting in the reverse.
    Fig 1: Checking Mode Control Actuator
    G10369849Courtesy of HYUNDAI MOTOR AMERICA
  5. Check the voltage between terminals 4 and 5.

    Specification 

    VOLTAGE SPECIFICATION

    Door position Voltage(4-5) 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 current position of actuator to controls.

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