Repair Procedures: Inspection: Notes

WARNING: This page is about a different car, the 2013 Hyundai Genesis Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Check-points upon head lamp failure (HID)
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 light)
4. Check that bulb connector is secure.
5. Visually check bulb (no filament) for: damaged glass, damaged upper parts and lower parts of glass tube.
6. After (1)~ (5), replace the ballast and the ignitor. (ballast assembly).
  
  Fig 1: Checking Bulb
  Courtesy of HYUNDAI MOTOR CO.

Service procedures and warnings (HID)

SERVICE PROCEDURES AND WARNINGS CHART

No.	Item	Service procedures	Warning	Remarks
1	Replacement of lamp assembly	Disconnect the power connector from the lamp. Remove and replace the lamp assembly. Connect the power connector.	Disconnect the head lamp power connector to avoid high voltage.	Other description is the same as the halogen bulbs.
2	Replacement of the Bulb	Disconnect the power connector from the lamp. (head lamp, turn signal, head lamp leveling device) Remove the lamp assembly. Remove the ballast and dust cover. Remove the bulb socket and replace the bulb. Installation is the reverse of removal.	Disconnect the head lamp power connector to avoid high voltage. Be careful not to damage the bulb and use genuine bulbs only. Do not apply excessive force and fit it correctly.
3	Replacement of the Ballast (with built-in ignitor)	Disconnect the power connector from the lamp. Remove the lamp and then the ballast and the dust cover. Remove the head lamp leveling device and then the bulb socket. Connect the bulb socket on the replacement ballast and install the leveling device. Installation is the reverse of removal.	Disconnect the head lamp power connector to avoid high voltage.	Replace the ballast only and install the used lamp. Replace the sub assembly except the ballast.
4	Others	Power supply should be according to the rated capacity. Use the rated fuse and wire. Bulb socket shall be free from moisture or dirt. Do not apply severe shock, water, or extreme temp. to ballast	All parts should be serviced only at specified service centers.	HID lamp should not be installed on other cars (Dangerous, fire may occur.)

CAUTION: HID lamp shall not be used on other cars. (Fire may occur.)
Fire may occur when HID lamp initially lights due to the fact that arc-discharge generates high voltage (max. 30, 000V) and high current (12-13A), and are different from the halogen lamp specification.

Understanding of color change for replacement of HID bulb.
1. The cause of HID color change. (Change of color is HID feature)
  1. The change of color occurs during mixing three Elements in the HID bulb.
    
    Fig 2: Color Temperature Change Graph
    Courtesy of HYUNDAI MOTOR CO.
  2. Color Coordinates by Lifetime
    
    Fig 3: Color Coordinates by Lifetime
    Courtesy of HYUNDAI MOTOR CO.
  3. Chemical compounds in an arc tube:
    1. Xenon gas (an inert gas, protection of arc tube)
    2. Mercury (increase voltage, protection of arc tube, blue in the first 3 seconds)
    3. Metal halide
      - Natrium (Yellow): 0.12mg
      - Scandium (Blue): 0.06mg
      - Iodine (Halogen): 0.02mg
2. Change of Color by Lighting Up Time
  1. It needs 4 seconds at least for stabilization. At first, you can see the blue for 3 seconds because of Mercury.
  2. After stabilization, change of color occurs by metal halide.
    - 0 Hour: Yellow (Na is more than Sc.)
    - 10 Hour: Bright Blue (Na and Sc are similar ratio.)
    - 1000 Hour more: Blue (Sc is more than Na.)
  3. The end of lifetime: When HID has used up Natrium and Scandium, a beam of light will be dark suddenly so you can see the red and purple turn on and off.