Hyundai Kona: Auto Lighting Control System / Auto Light Sensor Repair procedures

Check if the auto light control operates like a timing chart shown below. Tail lamp output and head lamp (Low) output is controlled based on the auto light sensor's input (illumination intensity) when the Auto Light Switch in Multi-Function Switch is turned ON, and the vehicle is in IGN1 or IGN2 ON Mode. If IGN1 = ON, BCM detects this voltage, and if the voltage exceeds rated voltage, then auto light failure occurs. (below 4V or above 6V)

In the state of IGN1 ON, when multi function switch module detects auto light switch on, tail lamp relay output and head lamp low relay output are controlled according to auto light sensor's input.The auto light control doesn't work if the pin sunlight supply (5V regulated power from Ignition 1 power to sunlight sensor) is in short circuit with the ground.If IGN1 ON, The BCM monitors the range of this supply and raises up a failure as soon as the supply’s voltage is out of range. Then this failure occurs and as long as this is present, the head lamp must be turned on without taking care about the sunlight level provided by the sensor.This is designed to prevent any head lamp cut off when the failure occurs during the night.

Description and operation

Description It's a system that uses illumination sensor to automatically turn ON the tail lamp and head lamp based on the change in surrounding environment's illu ...

Daytime Running Lights

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Other information:

Hyundai Kona (OS) 2018-2025 Service Manual: Repair procedures
Adjustment 1. After loosening the hinge (A) mounting bolt, adjust the hood (B) by moving it up and down or from side to side and tighten the bolt. 2. Adjust the hood height by moving the hood overslam bumpers (C) up and down. ...

Hyundai Kona (OS) 2018-2025 Service Manual: Auto Head Lamp Leveling Unit Description and operation
Description According to driving environment and loading state of vehicle, head lamp lighting direction is changed to keep the driver's visibility range and to protect the driver's vision from glare, aiming at safety driving. Sensor integrated ECU mo ...