Head Light Issue
Thread Starter
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Mountain Pass
Joined: Nov 2017
Posts: 194
Likes: 2
From: Toronto, Canada
Head Light Issue
need input please .
i just re wired my brake lights .
before I wired them up my regular headlights was working fine. In high beam and low. Beam
now after the wiring only my high beams work. Can someone tell me if I might of did something wrong. Or has this happened to you
thank You
sergio
i just re wired my brake lights .
before I wired them up my regular headlights was working fine. In high beam and low. Beam
now after the wiring only my high beams work. Can someone tell me if I might of did something wrong. Or has this happened to you
thank You
sergio
Hotshot
Joined: Oct 2009
Posts: 16,190
Likes: 4,798
From: Burbank, WA
Whether or not you did something "wrong" is hard to say. But it seems safe to say something you did caused an undesirable malfunction. The first thing to try is to go back and retrace your steps, undo whatever you did until the headlights work right again, and then rethink the brake lights. You may have a crossed wire somewhere between the brake and tail connections, backfeeding through the headlight circuit. While it could be totally unrelated, chances are if they worked before, and don't work now, the problem lies in your 'fix.'
Logistics Pro
Joined: Nov 2011
Posts: 4,685
Likes: 81
From: Northville, MI
You haven't given us much information. I'm assuming that this is a '51 F3? Maybe an old wire got broken or a connector came loose while you were working on it. I would start at the dimmer switch. Hopefully you have a multimeter or at least a 6V test light.
Cargo Master
Joined: Sep 2004
Posts: 2,757
Likes: 138
From: Alberta Canada
Sergio
as already suggested, try looking for voltage at the dimmer switch. If you have high beams you should have power to the one side of the switch. Try low beam and look for power going out. Could be switch is defective.
The headlights get power from ignition on to the main light switch. Check wiring at the dimmer switch .
as already suggested, try looking for voltage at the dimmer switch. If you have high beams you should have power to the one side of the switch. Try low beam and look for power going out. Could be switch is defective.
The headlights get power from ignition on to the main light switch. Check wiring at the dimmer switch .
Thread Starter
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Mountain Pass
Joined: Nov 2017
Posts: 194
Likes: 2
From: Toronto, Canada
Quick stupid question.
So I’ve gone back checked all my connections.
Everything seems ok. I’ve gone ahead and changed to dimmer switch on the floor and I’ve changed the headlight switch
still the same issue. All the lights work. My parking lights. My brake lights. And my high beams. But not my normal headlights.
I’ve recently changed the bulbs. Is it possible the auto parts store sold me 12 v bulbs. Would the high beams still work if they were 12V on 6 V system ??
So I’ve gone back checked all my connections.
Everything seems ok. I’ve gone ahead and changed to dimmer switch on the floor and I’ve changed the headlight switch
still the same issue. All the lights work. My parking lights. My brake lights. And my high beams. But not my normal headlights.
I’ve recently changed the bulbs. Is it possible the auto parts store sold me 12 v bulbs. Would the high beams still work if they were 12V on 6 V system ??
Fleet Owner
Joined: Jul 2004
Posts: 27,299
Likes: 1,059
From: NM
It's possible they sold you headlights for a quad-light (two low, two high) system, but they would only have two prongs on their backs vs. the three you need.
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Thread Starter
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Mountain Pass
Joined: Nov 2017
Posts: 194
Likes: 2
From: Toronto, Canada
it def had the 3 prongs on them tha I. Sure of. But I didn’t see any markings on box for 6v or 12v.
Thats why im asking if a 12v would work on high beam only. Or would it just not work at all ...
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Hotshot
Joined: Oct 2009
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From: Burbank, WA
Did you check your headlamp plug to see if you have power to the plug/bulb? If you do, then it's a bulb issue (if we're ruling out ground since half of the bulb does work) and you can double check the bulb for continuity across the prongs to be sure. If not, then trace the wire back to where you find power. Electrical problems are frustrating head scratchers, but are usually simple once you find the cause.
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Mountain Pass
Joined: Nov 2017
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From: Toronto, Canada
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