Body Electrical System
Headlamp Repair Procedures
In this manual: Body Electrical System
33steps
~198min
4/5difficulty
Done 0 of 33
Inspection
- Check the battery voltage. (The low beam will be turned on when the battery voltage is above 9 V.)
- Check the fuse and relay.
- Check the ballast polarity. (If the polarity is reversed, the low beam does not illuminate.)
- Securely check the bulb connector.
- Visual inspection of bulb (filament removed): Check for glass damage and damage to the upper and lower parts of the glass tube.
- After (1) through (5), replace the ballast and igniter (ballast assembly).

- Vibration resistant, since there is no filament.
- The HID bulb has a longer service life than the halogen bulb.
- Does not operate if polarity is reversed.
- Operating input voltage: 9-16 V
Headlamp Aiming Instructions
[Mechanical Aiming]
Aim the headlamps with the correct beam setting equipment, and follow the equipment manufacturer's instructions.
|
- Inflate the tires to the specified pressure and remove all loads from the vehicle except the driver, spare tire, and tools.
- The vehicle must be on a level floor.
- Draw vertical lines (vertical lines passing through the respective centers of the headlamps) and a horizontal line (horizontal line passing through the center of the headlamps) on the screen.
- With the headlamp and battery in normal condition, aim the headlamps so that the brightest part is on the vertical lines. A: Vertical



- Headlamp (Low Beam)
A. Turn on the low beam without the driver. B. The light-dark boundary line must project onto the light-dark boundary line shown in the illustration. C. If a headlamp leveling device is installed, set the headlamp leveling switch to position 0. 

Removal
- Disconnect the negative (-) battery terminal.
- Remove the front bumper cover. (Refer to Body - "Front Bumper Cover")
- Disconnect the headlamp connector (A).

- Remove the headlamp mounting bolts (B).

Be careful not to damage the clip (A).

- Remove the bulb caps from the headlamp assembly by turning them counterclockwise.


- Remove the bracket (A) after loosening the mounting screws. [Concealed type]


- Disconnect the igniter connector (A).
- Remove the ignition lamp (B).

- Remove the turn signal socket (A).
- Remove the turn signal lamp (B).

Installation
- Install the headlamp assembly after connecting the connector.
- Install the front bumper cover.
- Connect the negative (-) battery terminal.
Replacement
Ballast- Turn off the headlamp switch.
- Remove the bulb assembly.
- Disconnect the power connector from the bulb.
- Remove the ballast (A) after loosening the screws.


Be careful not to damage the ballast connector when disconnecting it.
- Installation is the reverse of removal.

- Turn off the headlights to avoid high voltage.

- Do not use the HID lamp on other vehicles.
- The HID lamp arc discharge generates high voltage (max. 20,000 V) and high current (12-13 A), and differs from the halogen lamp specification.
- Install the dust cover after checking the locking condition between the lamp and the socket.
- When inspecting the HID headlamp, turn the power on or off using the switch between the power source and the lamp because of the high voltage.
- Do not turn on the headlight switch with the lamp not installed, as it will generate a spark instantly.
Test yourself
A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.
Was this page helpful?