The temperature will increase by turning the knob to the right.
The temperature will decrease by turning the knob to the left.
Hyundai Sonata LF 2014-2019 Service Manual: Ambient Temperature Sensor (ATS) Description and Operation
Description
Ambient Temperature Sensor (ATS) is installed on the
front-end module and senses the ambient temperature. ECM receives not
only the intake air temperatue but also the ambient air temperature
informations at the same time to control the intake air quantity
precisely provided th ...
Hyundai Sonata LF 2014-2019 Service Manual: Curtain Airbag (CAB) Module Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least 3 minutes before beginning work.
2.
Remove the roof trim.
(Refer to Body - "Roof Trim Assembly")
3.
Disconnect the curtain airbag harness connector.
4.
After loosening the mounting bolts and nuts remove the curta ...