Headlights - NO HI Beam (suggestions?)

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Old April 29th, 2013, 10:03 AM
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Headlights - NO HI Beam (suggestions?)

cleaned ground. replaced a bulb. thanks,

Last edited by Flye; June 18th, 2013 at 03:36 PM. Reason: fixed
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Old April 29th, 2013, 10:32 AM
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If you have no high beams on either side, a properly functioning indicator light, and some change in your low beams when switching, you have a bad connection in the wiring from your left low beam headlight to the remainder of the high beam wiring that goes to the right side of the car.

This will allow your left outboard low beam headlight's high beam filament to work, but not either high beam, and not your right low beam's high beam filament either.

- Eric
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Old April 29th, 2013, 01:16 PM
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Originally Posted by Flye
67, 442

Headlights: Just noticed the HI Beams are not working. (don't know last time they were working, but have been working fine previously. just noticed the change today.)

Neither side.

Lows seem OK.

The "high Beam indicator light" is coming on on 'click' and something is going on with headlights as the low beams are slightly changing intensity, but not getting anything at all on HI.

Before i waste three hours and then find I should have asked first, just thought I'd post something to see if any 'common occurrences' that create this scenario.

I don't see a 'fuse' for HI in the fuse box, but see a 'HI beam' in the 'dash disconnect'. Is that where the fuse box is separated from the harness under the hood? I'm not sure how that could be a problem, but I thought I'd throw it out.


Thanks,
The low beam bulbs have two filaments, one for low and one for high, so you should see a change when you operate the dimmer. The easy answer is that both high beams are burned out. It's also possible that the ground wires are bad, or the feed wires as Eric noted. Either way, it sounds like everything is fine up to the low beam bulbs and the problem is the from there to the high beam bulbs.
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Old April 29th, 2013, 04:49 PM
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hey guys i found that the ground wire had gotten corroded and was not making a good ground
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Old April 29th, 2013, 05:00 PM
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That'll do it.

Glad you got it figured out!

- Eric
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Old April 29th, 2013, 05:45 PM
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thanks on all

Last edited by Flye; June 18th, 2013 at 03:37 PM.
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Old April 29th, 2013, 07:23 PM
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Originally Posted by Flye

The 'bright' indicator in dash also is totally 'off' when on low and fully lit when on HI. (It had been slightly lit, even when on dim lights.) I assume the grounding helped that. .
Ground faults can easily cause issues like this.
Looks like you got it fixed for good.
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