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Home >> Genesis >> 2019 >> G90 5.0 Ultimate, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Heater System) >> Auto Defogging Actuator >> Repair Procedures >> Inspection

Repair Procedures: Inspection

WARNING: This page is about a different car, the 2017 Genesis G80. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch OFF.
  2. Disconnect the auto defogging connector.
  3. Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 4.

    Verify that the auto defogging actuator operates to the close position when connected in reverse.

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  4. Connect the auto defogging actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminals 6 and 5.
    AUTO DEFOGGING ACTUATOR CONNECTOR VOLTAGE SPECIFICATION

    Door position Voltage (V) Error detecting
    Defog OFF (Close) 1.0 ± 0.15 Low voltage: 0.1V or less
    Defog ON (Open) 4.7 ± 0.15 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 auto defogging actuator and check for proper operation.
  8. Replace the auto defogging actuator if it is proved that there is a problem with it.