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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 100 (Heater System (HEV)) >> Mode Control Actuator >> Repair Procedures >> Inspection

Repair Procedures: Inspection

WARNING: This page is about a different variant/trim than selected.
  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 connecting 12V to terminal 3 and grounding terminal 7.
    Fig 1: Identifying Mode Control Actuator Connector End View
    G10590547Courtesy of HYUNDAI MOTOR AMERICA
  4. Connect the mode control actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminals 4 and 5.

    Specification 

    Door position Voltage 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 controls.

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