Hyundai Palisade: Air conditioning System / Auto Defogging Sensor

Hyundai Palisade (LX2) 2020-2024 Service Manual / Heating,Ventilation And Air Conditioning / Air conditioning System / Auto Defogging Sensor

Description and operation

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 signal from the sensor and restrains moisture and eliminate defog by controlling the intake actuator, A/C, auto defogging actuator, blower motor rpm, and mode actuator.

Repair procedures

Inspection

To inspect and diagnose the sensor, refer to Self-Diagnosis procedure and DTC guide.

Replacement

•	When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.

•	Put on gloves to prevent hand injuries.

1.	Disconnect the negative (-) battery terminal.

2.	Remove the rain sensor inner cover (A).

3.	Remove the rain sensor cover (A).

4.	Separate the auto defogging sensor connector (B) and remove the auto defogging sensor (A).

Install in the reverse order of removal.

•	Be careful to damage the windshield glass.

•	Make sure the hood latch release cable is connected properly.

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