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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 100 (Heater System (HEV)) >> Temperature 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 temperature control actuator connector.
  3. Verify that the temperature control actuator operates to the hot position when connecting 12V the terminal 3 and grounding terminal 7.

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

    Fig 1: Identifying Temperature Control Actuator Connector End View
    G10590525Courtesy of HYUNDAI MOTOR AMERICA
  4. Connect the mode control actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminals 5 and 6.

    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 temperature control actuator and check for proper operation.
  8. Replace the temperature control actuator if it is proved that there is a problem with it.