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Home >> Hyundai >> 2012 >> Veracruz GLS, AWD >> 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 12 V to the terminal 3 and grounding terminal 4.
  4. Verify that the mode control actuator operates to the vent mode when connecting in the reverse.
    Fig 1: Inspecting Mode Control Actuator
    G06858585Courtesy of HYUNDAI MOTOR CO.
  5. Check the voltage between terminals 5 and 6.
    VOLTAGE REFERENCE TABLE

    Door position Voltage (5-6) Error detecting
    Vent 0.3 ± 0.15 V Low voltage: 0.1 V or less
    Defrost 4.7 ± 0.15 V High voltage: 4.9 V 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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