- Switch off the ignition and disconnect the negative terminal of the battery.
- Carry out maintenance of the discharge lamp in a dry place.
- Dry hands thoroughly before handling.
Since the HID lamp connector is energized at about 25,000 V, touching it with your fingers or tester probes can result in electric shock. When turning on the gas-discharge lamp, do not touch its connector with your fingers or tester probes.
If the HID lamp is turned on before the front combination headlight is fully assembled, it may cause electric shock. Before turning on the gas discharge lamp, the front combination headlight must be completely assembled and installed on the vehicle.
If you use a tester to check the operation of the HID lamp control unit, electric shock may result. Do not disassemble the gas discharge lamp control unit.
A HID lamp control unit damaged in an accident can supply high voltage to surrounding modules and cause electric shock. Therefore, even if the discharge headlamps do not show external signs of damage after an accident and continue to function normally, a malfunction may occur later due to internal damage to the discharge lamp control unit. If the HID lamp control unit is reused, perform the following checks to ensure that there are no malfunctions:
- Several times check the inclusion of a gas discharge lamp in a cold state (turn off the discharge lamp for about 10 minutes or more and then turn it on again) and warmed up (turn on the discharge lamp for about 15 minutes or longer, turn it off for about 1 minute, and then turn it on again), to make sure the discharge lamp turns on normally.
- Make sure that the discharge lamp shines evenly for about 5 minutes after being turned on when cold. The light of the discharge lamp must not flicker or change brightness.
- Connecting a known-good lamp to the gas-discharge lamp control unit, turn it on for about 30 minutes and make sure that the brightness of the right and left headlights of the car is the same.