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Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through March 31, 2012 » Low Beam intermittent - question « Previous Next »

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Johndb
Posted on Thursday, March 22, 2012 - 12:03 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When the low beam goes out on me (just started cutting out a couple minutes ago) should the high beam indicator light come on? My blue idiot light comes on when the bulb momentarily goes out. I do have a jumper in the switch cluster to allow both beams on, but that's been in place for a year and a half. High beam works fine with the switch. Not sure yet if it's a ground problem or the bulb filament at this moment, but I'll check in the AM.
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Natexlh1000
Posted on Thursday, March 22, 2012 - 12:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That's a grounding failure in the steering head.
I'm pretty much 92% certain.

Run a big wire from the front of the frame to the steering area and see if it goes away.
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Mark_weiss
Posted on Thursday, March 22, 2012 - 11:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

On my BMW, when the low beam filament lost it's ground, it found an alternate path through the high beam, which caused the high beam indicator to illuminate.

Mark
in AZ
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Snojet
Posted on Thursday, March 22, 2012 - 12:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Did you check your ground under the flyscreen? If that's ok, did you wiggle and pull on the power wire to see if it is broken?
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Froggy
Posted on Thursday, March 22, 2012 - 01:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yep grounding issue, been there done that!
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Towpro
Posted on Thursday, March 22, 2012 - 02:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Same here. instead of taking hours and pulling the harness apart, I just added a new ground wire to the same ground point (which I cleaned while apart)and spliced that ground into the headlight ground.

This will also back feed anything else that was on that ground circuit.
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Johndb
Posted on Thursday, March 22, 2012 - 10:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was not able to look at it today, so I'll check in the morning to see if I can get it going. Thanks for the suggestions!
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Johndb
Posted on Friday, March 23, 2012 - 01:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)



Yep, it was the ground at the steering head. When I tugged on the wire it pulled off the lug. The only thing that was still holding it in contact was the insulation!

thanks again
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