Hyundai Accent (HC): Body Electrical System / Auto Lighting Control System

Contents:

• Specifications
• Components and Components Location
• Schematic Diagrams
• Auto Light Switch
• Auto Light Sensor

Specifications

- Specifications

Items		Specifications
Rated voltage		5V
Load		Max. 1mA (When head lamp lighting)
Illuminations (LUX)	50	1.42 ± 0.31V
	100	2.63 ± 0.58V
	150	3.84 ± 0.84V

Components and Components Location

- Component Location

1. Auto light sensor
2. Head lamps
3. Lighting switch (Auto)
4. Tail lamps
5. BCM (Body Control Module)

Schematic Diagrams

- Circuit Diagram

Auto Light Switch

- Inspection

1.Oprate the auto light swith, then check for continuity between terminals of multi-function switch connector.

Switch Position	SwitcH Terminal	Resistance (Ω, ±3.5%)
OFF	9-14	680
AUTO / DRL		∞
Tail lamp		1680
Low beam		1680

Auto Light Sensor

- Inspection In the state of IGN1 ON, when the 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.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. - Removal

1.Disconnect the negative (-) battery terminal.

2.Remove the photo & auto light sensor (A) from crash pad upper side by using screw (-) driver.

3.Remove the auto light connector.

- Installation

1.Reconnect the auto light connector.

2.Install the auto light sensor.