Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Auto Defoging Actuator

Hyundai Santa Cruz: Heater / Auto Defoging Actuator

- Description The auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging. The air conditioner control module receives a signal from the sensor and restrains moisture and eliminates defog by the intake actuator, A/C, auto defogging actuator, blower motor rpm and mode actuator. - Components Location

1. Auto defogging actuator

- 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. Vent mode
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.

Door position	Voltage (4-5)	Error detecting
DEF (ON)	1.18 ± 0.15 V	Low voltage : 0.1V or less
DEF (OFF)	4.10 ± 0.15 V	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, 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.

8.Replace the auto defogging actuator if it is proved that there is a problem with it.

- Replacement

1.Disconnect the negative (-) battery terminal.

2.Remove the main crash pad assembly.(Refer to Body (Interior and Exterior) - "Main Crash Pad Assembly")

3.Disconenct the connector (A) and loosen the mounting screws and remove the auto defogging actuator (B).

4.Install in the reverse order of removal.

Mode Control Actuator

- Description The mode control actuator is located at the heater unit.It adjusts the position of the mode door by operating the mode control actuator based on the signal of the A/C control unit ...

Blower

...

Other information:

Hyundai Santa Cruz 2021-2025 Owners Manual: Trailer Towing Equipment
Hitches Information The mounting hole for hitches are located on both sides of the underbody behind the rear tires. It’s important to have the correct hitch equipment. Crosswinds, large trucks going by, and rough roads are a few reasons why you’ll need the right hitch. Here are some rules ...

Hyundai Santa Cruz 2021-2025 Owners Manual: Windshield Washers
In the OFF position, pull the lever gently toward you to spray washer fluid on the windshield and to run the wipers 1-3 cycles. The spray and wiper operation will continue until you release the lever. If the washer does not work, you may need to add washer fluid to the washer fluid reservoir ...