Question about 2002 Lexus IS 300

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Headlights go onand off one at a time . It is on the low beem lights.It seems to alternate from left to right .machanicks cant seem to be able to figure it out. please help.

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Do you have a HID ?
If you have just regular Halogen lamp then here is the problem:
The contact from the plug to the bulb got corroded over time. Clean out the contact of the plug is difficult, but cleaning the prong sot the bulbs is feasible. After clean them put the bulb from the right to the left to see the problem revesed.
My recommendation is to replace both the bulbs. It has been 7 years, and they have not been changed, it time to replace even they are still glowing. The reason to replace to have new clean contact less resistance to have a steady current, avoiding the on and off situation.

Posted on Jul 03, 2009

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