Hyundai Sonata: Lighting System / Head Lamps Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Body Electrical System / Lighting System / Head Lamps Repair procedures

Inspection

1.	Check the battery voltage. (Low beam will be on when the battery voltage above 9V.)

2.	Check the fuse and relay.

3.	Check the polarity of ballast. (If the polarity are changed, low beam doesn't lighten)

4.	Check the bulb connector securely.

5.	Visually bulb checking (no filament) : damaged glass, damaged for upper parts and lower parts of glass tube.

6.	After (1)~(5), replace the ballast and the ignitor. (ballast assembly).

Characteristic

1.	Durable for vibration as there is no filament.

2.	HID lamp had a more long life than halogen lamp.

3.	Does not operate if polarity is changed.

4.	Operating input voltage : 9-16V

Head Lamp Aiming Instructions

[Mechanical Aiming]

The head lamps should be aimed with the proper beam-setting equipment, and in accordance with the equipment manufacturer's instructions.

If there are any regulations pertinent to the aiming of head lamps in the area where the vehicle is to be used, adjust so as to meet those requirements.

Alternately turn the adjusting gear to adjust the head lamp aiming. If beam-setting equipment is not available, proceed as follows :

1.	Inflate the tires to the specified pressure and remove any loads from the vehicle except the driver, spare tire, and tools.

2.	The vehicle should be placed on a flat floor.

3.	Draw vertical lines (Vertical lines passing through respective head lamp centers) and a horizontal line (Horizontal line passing through center of head lamps) on the screen.

4.	With the head lamp and battery in normal condition, aim the head lamps so the brightest portion falls on the vertical lines. A : Vertical

Head Lamp and Fog Lamp Aiming Point

Head Lamp (Low beam)

A.	Turn the low beam on without driver aboard.

B.	The cut-off line should be projected in the cut-off line shown in the picture.

C.	If head lamp leveling device is equipped, adjust the head lamp leveling device switch with 0 positions.

Head Lamp Fogging

Check the below instruction procedure when the head lamp is fogged.

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the front bumper cover. (Refer to Body - "Front Bumper Cover")

3.	Disconnect the head lamp connector (A).

Remove the head lamp (B) mounting bolts.

Take care that holding clip (A) is not to be damaged.

5.	Remove the bulb caps from the head lamp assembly afterturning in the counter clock-wise direction.

6.	Remove the Bracket (A) after loosening the mounting screws. [HID Type]

7.	Disconnect the ignitor connector (A).

8.	Remove the ignitor lamp (B).

9.	Remove the turn signal socket (A).

10.	Remove the turn signal lamp (B).

Installation

1.	Install the head lamp assembly after connecting the connector.

2.	Install the front bumper corver.

3.	Connect the negative (-) battery terminal.

Replacement

Ballast

1.	Turn the head lamp switch off.

2.	Remove the lamp assembly.

3.	Disconnect the power connector from the lamp.

Remove the ballast (A) after loosening the screws.

Be careful not to be damaged when disconnecting the ballast connector.

Installation is the reverse of removal.

•	Turn the head lamp switch off to avoid high voltage.

•	HID lamp shall not be used on other cars.

•	HID lamp arc-discharge generates high voltage (max. 20,000V) and high current (12-13A), and are different from the halogen lamp specification.

•	Install the dust cover after confirming the locking state between bulb and bulb holder.

•	When testing the HID head lamp, turn the power on or off with switch between power supply and lamp because of high voltage.

•	Do not operate the head lamp switch with the bulb not installed, because it generates spark momently.

Head Lamps Description and Operation

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