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Hyundai Equus: Lighting control

The light switch has a Headlight and a Parking light position.
To operate the lights, turn the knob at the end of the control lever to one of the following positions:
(1) OFF position
(2) Auto light / AFLS position
(3) Parking light position
(4) Headlight position
Auto light/AFLS position

When the light switch is in the AUTO light position while the engine is running, the taillights and headlights will be turned ON or OFF automatically depending on the amount of light outside the vehicle.
If your vehicle is equipped with the adaptive front lighting system (AFLS), it will also operate when the headlamp is ON.
CAUTION
Parking light position (
)

When the light switch is in the parking light position, the tail, license and instrument panel lights are ON and the tail light indicator is ON.
Headlight position (
)

When the light switch is in the headlight position, the head, tail, license and instrument panel lights are ON.
✽ NOTICE
The Engine Start/Stop Button must be in the ON position to turn on the headlights.
Headlight escort function
High beam operationAFLS (Adaptive Front Lighting System) (if equipped)
Adaptive front lighting system uses the steering angle and vehicle speed, to
keep your field of vision wide by swiveling and leveling the headlamp. Turn the
knob to the AUTO position when the ...
Components and Components Location
Component Location
1. Windshield deicer relay (Built-in engine room junction box)2. Windshield deicer switch3. Windshield deicer4. Deicer connector5. Body control mudule
...
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Specifications
Specifications
Direct control VFS[UD/C]
x Control type : Normal low type
Control Pressure kpa (kgf/cmx, psi)0~1569.06 (0~16,0~227.57)Current value(mA)0~1100 Internal resistance ...