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LED Headlights now no highbeam
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MonkeySee
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PostPosted: Fri Feb 19, 2016 9:20 am    Post subject: LED Headlights now no highbeam Reply with quote

So I installed some LED headlights in the '70 Bay and now I can't get the highbeams to work. Highbeams worked with the standard headlights, they worked with one LED headlight and one standard headlight. But with both LED headlights the highbeams won't come on. In my unprofessional thinking I'm thinking there's not enough draw to trip the relay over to the highbeams. Similar to how LED turn signals flash fast with a regular flasher relay.
My question is how accurate is this thinking. And does anyone know of an electronic relay for the highbeams if my thinking is correct?
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NASkeet
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PostPosted: Fri Feb 19, 2016 9:31 am    Post subject: Re: LED Headlights now no highbeam Reply with quote

So far as I'm aware, the current to activate the headlamp-dimming relay, has nothing to do with the current consumed by the headlamps themselves, but the switch-current passing through the relay's solenoid coil and the steering-column dimmer switch.
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Tcash
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PostPosted: Fri Feb 19, 2016 10:42 am    Post subject: Re: LED Headlights now no highbeam Reply with quote

Which LED headlights?
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MonkeySee
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PostPosted: Fri Feb 19, 2016 12:20 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Headlights are JW Speaker.
Trucklite has some that were my second choice. Maybe I'll still buy them and put them on my other bus and see which ones I like better.
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OB Bus
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PostPosted: Fri Feb 19, 2016 12:42 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Have you contacted the vendor?
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PostPosted: Fri Feb 19, 2016 12:49 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

spin the fuses and check the grounds for corrosion. There may not be enough current to make a good connection if there is corrosion. A standard bulb pulls a lot of current due to lower resistance during the milli-second it heats up. Sometimes that current is enough to arc thru a little corrosion. Your LED may not have enough current draw to arc thru a bad ground or resistance. There are two headlight fuses.
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scrivyscriv
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PostPosted: Fri Feb 19, 2016 1:19 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

My Jeep buddy's opinion after doing LED research is those JW headlights are he best LED headlights out right now. But no they don't operate at all like a turn signal, it's totally different tech. The flasher is a bimetallic spring that uses heat from amp draw. The headlight relay uses 12v and ground to pull the solenoid in and contact the internal switch pads.

Building on SGKent'a theory you might have bad contacts in the relay not letting the current through since the draw is so much less.
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busdaddy
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PostPosted: Fri Feb 19, 2016 1:23 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Does the relay click when you pull the lever?, or nothing happens at all?
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MonkeySee
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PostPosted: Fri Feb 19, 2016 2:52 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

There is clicking.
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busdaddy
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PostPosted: Fri Feb 19, 2016 3:54 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Then the relay is working, SGK's theory about resistance in a fuse, relay contact or ground is the most plausible answer.
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Tcash
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PostPosted: Fri Feb 19, 2016 5:40 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

MonkeySee wrote:
Headlights are JW Speaker.
Trucklite has some that were my second choice. Maybe I'll still buy them and put them on my other bus and see which ones I like better.


Which Model?
http://www.jwspeaker.com/resources/?s=Instruction+Sheet
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MonkeySee
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PostPosted: Fri Feb 19, 2016 6:58 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

This one. Model 8700
http://www.jwspeaker.com/products/led-headlights-model-8700-evolution-2/
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1967250s
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PostPosted: Fri Feb 19, 2016 7:50 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Have you tried a new relay? Bet the old contacts are pretty worn and may not flow enough juice to jump the pitting.
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Tcash
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PostPosted: Fri Feb 19, 2016 9:47 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

MonkeySee wrote:
This one. Model 8700
http://www.jwspeaker.com/products/led-headlights-model-8700-evolution-2/


Seems like they are plug and play. As posted time to check grounds and wire connections. Spin the fuses. Test the voltages in and out of the relay as well.
Here is the headlight circuit
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Good luck
Tcash
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mrbell321
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PostPosted: Tue Jan 16, 2018 5:05 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Did you get this resolved? and were there any fitment issues?

Thanks,
Tyler
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MonkeySee
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PostPosted: Tue Jan 16, 2018 8:51 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Have not gotten this resolved. I just drive around on the low beams and actually that's sufficient for now. As far as fitment goes I did have to grind down some of the cooling fins on the back to get it to fit in the headlight bucket but doesn't seem to be an issue. I was careful to only grind the fans where I can see both sides so I didn't actually go into a sealed portion of the light.
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Danwvw
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PostPosted: Tue Jan 16, 2018 9:13 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

If that relay is like my 71 it's a bi-stable relay mine gets wet sometimes and rust out the spring and mucks things up.
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mrbell321
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PostPosted: Wed Jan 17, 2018 12:50 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

MonkeySee wrote:
Have not gotten this resolved. I just drive around on the low beams and actually that's sufficient for now. As far as fitment goes I did have to grind down some of the cooling fins on the back to get it to fit in the headlight bucket but doesn't seem to be an issue. I was careful to only grind the fans where I can see both sides so I didn't actually go into a sealed portion of the light.


Hm... I think you are braver than I. If I spend that much on headlights, I want them to fit w/o grinding!
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vwwestyman
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PostPosted: Wed Jan 17, 2018 1:49 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

Sounds kind of like the LED headlights I put on my Thing.

Due to poor connections somewhere along the way, they don't always flip over to high beam. Sometimes they will actually flicker between high and low, especially when a turn signal is on.

I don't remember the exact explanation from the seller but it was something along the lines of if the connections aren't perfect, the light will default down to low beams.

This whole thing is somewhat annoying, but I guess it isn't annoying enough to inspire me to go through and clean every single ground/connection. I don't drive on the highways in the Thing often, and even more rarely at night, so I don't end up using the high beams all that much anyway.
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BUSBOSS
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PostPosted: Wed Jan 17, 2018 10:59 pm    Post subject: Re: LED Headlights now no highbeam Reply with quote

IMHO, the existing LED "upgrades" aren't worth it on two fronts: functionality and aesthetics.
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