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Emmitt Patterson Posted on Aug 30, 2017

My high beams won't work on 2008 cats Cadillac the brights are showing in dash but go to high beam

The bright is showing on dash but not going to high beam when I put it on high are both bulbs burnt out on high

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Robert heinrich

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  • Contributor 5 Answers
  • Posted on Aug 30, 2017
Robert heinrich
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It is likely a blown high beam fuse - check your fuse box. Or it could be the high beam relay - but I would check the fuse first

  • Robert heinrich Aug 30, 2017

    Hi



    Sounds like a blown fuse. Check your fuse box. Or could be a bad high beam relay - which in most cars is generally near the fuse box or could be in a compartment in the engine bay. But I would check the fuse first

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5 Related Answers

Anonymous

  • 9 Answers
  • Posted on Jan 29, 2009

SOURCE: 99 nissan sentra headlamp - hi beam low beam issues

could be the switch. did you do anything to the switch when you changedheadlamps? maybe you put the lamp in incorrectly also did the brights work on the lamp that was "burned out"?

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Jim DuBreck

  • 578 Answers
  • Posted on Oct 22, 2009

SOURCE: 2002 chevrolet 1500 pickup. while tilting the

Sounds like the plastic tab that your High/low beam lever (on the steering column) switches has slipped out or broken and was displaced by the column movement. The lever assembly will have to be pulled, inspected, and (probably) replaced.

Considering all you have done, that is the only thing left (except a broken or shorted wire that connects to the suspect lever assembly - but unlikely).
Let us know what you find... please! -Jim

Anonymous

  • 1 Answer
  • Posted on Sep 25, 2010

SOURCE: bright lights won't work

I too had the same exact problem on my 1999 Cavalier. I replaced the lamps,then the DLR,and then looked at the harness under the battery box.(It appeared to look ok and didn't have any corrosion on it I could see). I then ordered a new turn signal/high beam switch that's on the steering column. I replaced the switch and still had the same problem. Not wanting to let this defeat me I started tracing the wires from the high beam lamps back. When I got back to the wiring harness under the battery box I noticed that just one of the wires had a little corossion on it. Guess what? it turned out that was the high beam wire and it was coroded through and not making the circuit complete. I cut the wire at the coroded spot, restripped both ends and twisted them together. At that point I tried all the lights and they worked perfectly. I then soldered and shrink wraped the repaired wire. (Finally end of problem) My suggestion,Really look closely at that wiring harness. If you have to use a magnifiying glass do so. This was a really frustrating problem that I finally solved and I hope this can help others with the same problem.

fordexpert

  • 5692 Answers
  • Posted on Oct 20, 2010

SOURCE: I have a 2008 f250.

I am sure that a 12 Volt bulb means it needs 12 Volts. Since you changed the bulb to the other side, why not check the voltage in the working side and see what it reads?

Sometimes the turnstalk can interfere with the lighting. Try pushing the Hazard switch several times and see if the headlights straighten out. I read that too much goes through the turnstalk and that using the Hazards can derail a contact inside the stalk.

If this does not help, you may need a headlight relay in the powerbox. One contact may be dirty or burned down for the wire it feeds. Unless you have a single wire feeding both low beams to the headlights, I would bet the left and right side come out directly through the relay.

Anonymous

  • 140 Answers
  • Posted on Jun 26, 2011

SOURCE: 1999 dodge diesel 2500 bright headlights won't

Do you hear switch click when put on high beams? If not could have gotten out of adjustment

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if the indicator light on your dash appears to be working, you probably just need new bulbs. No, they didn't both burn out at once. You probably drove a while with one headlight and didn't know it. If the indicator light doesn't come on and off, you will need a new dimmer switch, but since they work on bright, I am assuming that works.
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Does this model use a 4 headlight bright system? I have 2 low beam lights but when I put on the bright lights the 2 low beam lights go out and only the 2 bright lights stay on.

I think that many 1990s and even some 1980s GM vehicles with seemingly 4 headlight systems actually use only 2 at a time.

My 1990 Oldsmobile Cutlass Calais, for instance, had 2 high beams that went on independently of the 2 low beam lights when switched with the turn signal lever.

In the 1970s the GM vehicles had 4 headlight systems where all 4 headlights would go on, but they used sealed beams rather than the capsule lights that are used nowadays.

For instance, our 1976 Cadillac Seville has a 4 headlight system that lights up 4 headlights on the high beam mode.

Good luck on seeing at night with the current set up.
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99 nissan sentra headlamp - hi beam low beam issues

could be the switch. did you do anything to the switch when you changedheadlamps? maybe you put the lamp in incorrectly also did the brights work on the lamp that was "burned out"?
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