Hyundai Elantra AD Quiz
Heating, Ventilation, and Air Conditioning

Auto Defog Actuator Description and Operation

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
~1min read

Description

The auto defog sensor is installed on the windshield. The sensor detects moisture and sends a signal when it appears, so that air is blown to remove fogging. The air conditioning control unit receives the signal from the sensor and controls the intake door, air conditioning compressor, auto defog actuator, blower fan speed and mode door to remove moisture and fogging.

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.