Hyundai Elantra: Air Conditioning System / PM Sensor
Description and operation
Monitor the air quality inside the vehicle in real time (PM sensor) and display the status on the screen.
Automatically operate when fine dust concentration is high (Condition: Bet mode + A/C ON + 3rd speed or higher)
Components and components location

Repair procedures
1. | Disconnect the negative (-) battery terminal. |
2. | Remove the crash pad air vent [RH]. (Refer to Body (Interior and Exterior) - "Crash Pad Air Vent") |
3. | Loosen the mounting screw and remove the PM sensor (A). 
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4. | Install in the reverse order of removal. •
| Replace any damaged clips |
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| Make sure the connector is connected properly. |
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Description
DescriptionThe 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...
Other information:
Function malfunction
After starting the engine, a beep will
sound when the gear is shifted to R
(Reverse) to indicate the system is
operating normally.
However, if one or more of the following
occurs, first check whether the ultrasonic
sensor is damaged or whether the
system is in a non operating condition.
If it still does not work properly,
we recommend that the system be
inspected by a..
Replacement
•
When removing the fender, wrap protective tape around a screwdriver or remover not to damage components•
Put on gloves to prevent hand injuries1.Remove the front bumper.(Refer to Front Bumper - "Front Bumper Assembly")2.Remove the head lamps.(Refer to Body Electrical System - "Head Lamps")3.Remove the front wheel guard..