Welcome light
Door handle lamp
When all the doors (and trunk) are closed and locked, the door handle lamp will come on for about 15 seconds if any of the below is performed.
Headlamp and Parking lamp
When the headlamp (lamp switch in the headlamp or AUTO position) is on and all doors (and trunk) are locked and closed, the parking lamp and headlamp will come on for 15 seconds if/or any of the below is performed.
At this time, if you press the door lock or unlock button on the remote key or smart key the parking lamp and headlamp will turn off immediately.
You can activate or deactivate the Welcome Light from the User Settings Mode (Light) on the LCD display.
Interior lamp
When the interior lamp switch is in the DOOR position and all doors (and trunk) are closed and locked, the room lamp will come on for 30 seconds if any of the below is performed.
At this time, if you press the door lock or unlock button on the remote key or smart key the room lamp will turn off immediately.
Hyundai Sonata LF 2014-2019 Service Manual: Spark Plug Description and Operation
Description
A spark plug is a device for delivering electric current from
an ignition system to the combustion chamber of a spark-ignition engine
to ignite the compressed fuel/air mixture therein by means of an
electric spark, while containing combustion pressure within the engine. A
spar ...
Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description
The charging system included a battery, an alternator with a built-in regulator, and the charging indicator light and wire.
The Alternator has eight built-in diodes, each rectifying AC current to DC current.
Therefore, DC current appears at alternator "B" terminal.
In addition, the ...