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Is my 2007 Lincoln Navigator (HID headlights) equipped with HIGH BEAMS? If so - they don't seem to work. Allow me to explain; 1. The headlights come on automatically in low light conditions. 2. The headlights come on when I use the switch on the dash, (day or night). 3. The fog lights come on automatically when I deactivate the factory alarm, (key fob or driver's door code). 4. The fog lights work independently when I use the switch on the dash. 5. When I am driving at night with the fog lights on, (high beam indicator light is OFF) everything works OK. 6. When I pull the turn signal lever to activate the high beams - the high beam indicator light comes ON and the fog lights turn OFF - (as I imagine they should). But there is no increase in the headlights brightness. The headlights stay at the same level of illumination reguardless of the high beams being ON or OFF. Could there be a blown fuse or relay somewhere?

Posted by Jim Davis on

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  • Cars & Trucks Master
  • 788 Answers

First of all are your headlights a double filament type headlight? If yes then I would suspect that a power wire to the high beams is broken or shorted. If your high beams are a separate set of lights from your regulars running lights then either the high beams headlights are missing. or has a broken power wire or shorted or...You could check the fuse box under your dash and under the hood of the car to see if you have a fuse for the high beam lights.

Posted on Oct 28, 2013

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3 Related Answers

rayoftdad

  • 1 Answer

SOURCE: DRL and High Beam do not work right on Honda Accord EX 1998

Some time back I found some data on a similar website suggesting that the Day Light Running circuit board, just under the steering column, developed cracks in some of the soldered joints. Your high beams should also be affected with loss of day light running lights.
Resoldering repaired the continuity of the circuits. Ours is now working quite reliably. Some of the defective areas developed slight brownish discoloration, that's how I was told to recognise the areas to be resoldered. Hope this will help you solve your problem.

Posted on Jun 10, 2008

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Rezanate

  • 23 Answers

SOURCE: camry headlights not working

Have you checked out the switch itself? Seems like the problem might be there.
If the lamp bulbs are sill intact, that's probably the most likely solution. There's a possibility you have a short somewhere in the switch relay that will allow the highlights to turn on but not the low beams.

Posted on Mar 25, 2010

dttech

dttech

  • 4803 Answers

SOURCE: 2005 Ford Focus ZX3 SES, the blue high beam

It sounds like you are confused about how your headlamp system is supposed to work. The DRL does not run on the High beam circuit, it runs on the low beam circuit. The fog lamps are supposed operate with the park lamps and also with the low beams, not the high beams. From your description, I would say that your system is operating as designed and you are having trouble telling High from Low. (Don't feel bad, that is why high beam indicators were invented in the first place.)

Posted on May 08, 2011

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http://repairhelpcenter.blogspot.com/2012/01/passenger-side-low-beam-out.html

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http://howtobyme.blogspot.com/2011/11/only-high-beams-work-but-head-lights.html

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8. Remove the headlamp bulb protective cover(s).
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