Description
When a malfunction occurs in xenon headlights (for example, the headlight does not light up, flashes, etc.), it can be assumed that this is due to insufficient light intensity.
In most cases, a xenon lamp is considered the cause of this malfunction.
Since a malfunction of the control unit for gas discharge high-voltage lamps (HID) and the headlight housing is unlikely, it is necessary to find problem area by following the procedure below.
Attention:
Disconnect and reconnect the connector by setting the headlight switch to the OFF position.
When the headlight is on (headlight switch in the ON position), Do not touch the wires and the HID control box inside the headlight and the metal parts of the headlight with your hands.
Test the operation of the headlight by connecting a good power source to the connector on the body side.
If the cause of the malfunction is in the electrical system, check if the fuse is blown, the fusible link is not blown, if there is a broken wire near the connector, if the contacts are damaged, if the connector is tightly connected, etc.
Do not work with wet hands.
Wiring diagram
Attention:
Do not diagnose the HID control unit circuit with a tester.
Do not disassemble the HID control box (lamp holder wiring and control box wiring).
Note:
Immediately after the headlight comes on, the light intensity and color fluctuate, but this is not a malfunction.
When the lamp reaches the end of its life, the light intensity decreases significantly and/or the lamp flashes rapidly and the color of the light becomes reddish.