Headlight shuts off when switching on high beam
Club Member
Joined: Sep 2010
Posts: 15,435
Likes: 7,127
From: Beyond Fucital
You need to be more specific as to what's going on.
Besides the Hi beam isn't working.
Is there voltage at the bulb connector between black and white?
Is the hi beam indicator lighting up?
These questions were asked but not answered.
Details matter, help us help you.
Explain it to us like we're 4 years old.
Besides the Hi beam isn't working.
Is there voltage at the bulb connector between black and white?
Is the hi beam indicator lighting up?
These questions were asked but not answered.
Details matter, help us help you.
Explain it to us like we're 4 years old.
Seasoned HDF Member
Joined: Feb 2007
Posts: 6,086
Likes: 1,128
From:
Just so a small detail is not missed.
What kind of bulb was on the bike?
What kind of bulb did you use as a replacement?
Did you test either bulb on a bench to confirm operation of bulb?
Is the hi/lo switch operating correctly ? perhaps somebody changed bars or grips and pinched a wire at the clam for switches.
What kind of bulb was on the bike?
What kind of bulb did you use as a replacement?
Did you test either bulb on a bench to confirm operation of bulb?
Is the hi/lo switch operating correctly ? perhaps somebody changed bars or grips and pinched a wire at the clam for switches.
HDF Community Team
Joined: Nov 2012
Posts: 6,191
Likes: 2,422
From: USA
Th auxiliary or passing lights only come on when the headlight is in low beam mode. When high beam is selected, the passing lights are extinguished.
So Im that sense, they are operating correctly.
So no high beam is a problem from the handlebar switch to the headlight itself. Usually its a burned out filament in the bulb. But a loose or broken wire can happen. As can a failed switch.
Not sure if the bulb you replaced was a headlight bulb. If you have, use a meter or test bulb and look for juice following back from the headlight plug to the handlebar switch.
So Im that sense, they are operating correctly.
So no high beam is a problem from the handlebar switch to the headlight itself. Usually its a burned out filament in the bulb. But a loose or broken wire can happen. As can a failed switch.
Not sure if the bulb you replaced was a headlight bulb. If you have, use a meter or test bulb and look for juice following back from the headlight plug to the handlebar switch.
Seasoned HDF Member
Joined: May 2012
Posts: 32,934
Likes: 36,032
From: Carlsbad, CA
The low beam, and tbe spot lights going off when High beam is turned on, is the standard OEM performance.
Focus diagnostics on why the high beam is not coming on. Check voltage at the light connector, if you have it, then sumthin is wrong with bulb. If no power at connector, use schematic to figure out where you are losing it. The stitch is good, since the low beam & aux lights are going off when ya switch on the high beam.
Focus diagnostics on why the high beam is not coming on. Check voltage at the light connector, if you have it, then sumthin is wrong with bulb. If no power at connector, use schematic to figure out where you are losing it. The stitch is good, since the low beam & aux lights are going off when ya switch on the high beam.
Cruiser
Joined: Jun 2020
Posts: 199
Likes: 127
From: Valley Head, WV
The low beam, and tbe spot lights going off when High beam is turned on, is the standard OEM performance.
Focus diagnostics on why the high beam is not coming on. Check voltage at the light connector, if you have it, then sumthin is wrong with bulb. If no power at connector, use schematic to figure out where you are losing it. The stitch is good, since the low beam & aux lights are going off when ya switch on the high beam.
Focus diagnostics on why the high beam is not coming on. Check voltage at the light connector, if you have it, then sumthin is wrong with bulb. If no power at connector, use schematic to figure out where you are losing it. The stitch is good, since the low beam & aux lights are going off when ya switch on the high beam.
Club Member
Joined: Apr 2013
Posts: 7,682
Likes: 8,414
From: Utah
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Road Master
Joined: Jun 2012
Posts: 1,062
Likes: 191
From: Boise, Idaho
Here's a link to the wiring adaptor that allows high beams on with aux lamps.
https://www.denniskirk.com/hogworkz/...0aAob0EALw_wcB
https://www.denniskirk.com/hogworkz/...0aAob0EALw_wcB
Last edited by Boomer1143; Dec 21, 2022 at 07:26 AM.