Hyundai Santa Fe: Heater / Auto Defogging Actuator. Repair procedures

Hyundai Santa Fe (TM) 2019-2024 Service Manual / Heating,Ventilation And Air Conditioning / Heater / Auto Defogging Actuator. Repair procedures

Inspection
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 6.
Verify that the auto defogging actuator operates to the close position when connected in reverse.

1. -
2. -
3. DEF (Close)
4. Sensoer ground
 5. Feedback signal
6. Sensor (+ 5V)
7. DEF (Open)

4.
Connect the auto defogging actuator connector.
5.
Turn the ignition switch ON.
6.
Check the voltage between terminals 5 and 4.
  
•
It will feedback the current position of the actuator to controls.
Specification
Door position
Voltage (V)
Error detecting
Defog ON (Open)
 0.94 ± 0.15
 Low voltage : 0.7V or less
Defog OFF (Close)
 4.7 ± 0.15
 High voltage : 4.9V or less

7.
If the measured voltage is not within specification, check the operation by replacing the existing auto defogging actuator with a new genuine part. After that, determine whether replacement of the auto defogging actuator is required or not.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the main crash pad assembly.
(Refer to Body - "Main Crash Pad Assembly")
3.
Press the lock pin and separate the connector (A) and loosen the mounting screws and remove the auto defogging actuator (B).
4.
Install in the reverse order of removal.

    Auto Defogging Actuator. Components and components location

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    Blower

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    Other information:

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    The engine is automatically restarted in the following situations. The brake vacuum pressure is low The engine has stopped for about 5 minutes The air conditioning is ON with the fan speed set to a certain high level The front defroster is ON The battery is weak The cooling and heating performance of the climate control system is unsatisfactory The vehicle is shifted to P (Park) or R (Reverse) when Auto Hold is activated The door is opened or the seatbelt is unfastened when Auto Hold is activated The EPB switch is pressed when Auto Hold is activated The Auto Stop () indicator blinks in green for 5 seconds on the instrument cluster when the engine is restarted...

    Hyundai Santa Fe (TM) 2019-2024 Service Manual: Components and components location


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    Categories

    Power adjustment

    The front seat can be adjusted by using the control switches located on the outside of the seat cushion. Before driving, adjust the seat to the proper position so that you can easily control the steering wheel, foot pedals and controls on the instrument panel.

    WARNING

    NEVER allow children in the vehicle unattended. The power seats are operable when the vehicle is turned off.

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