Wired backwards?....or different??


Information and questions on GL1500 Goldwings (1988-2000)
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offcenter
Posts: 394
Joined: Sat Sep 22, 2012 2:10 pm
Location: Lake Hopatcong, New Jersey
Motorcycle: 99 Gl-1500 SE
76 GL-1000
77 Honda Trail 90

Wired backwards?....or different??

Post by offcenter » Sat Aug 12, 2017 4:47 pm



Today I tried to replace the H4 headlight bulbs in my '99 GL-1500 with Phillips LED bulbs.
I tested the bulbs by plugging them into the Honda's existing wire harness.
Hmm....No high beam. Low beam stays on no matter what position the handlebar
switch is in.
Tested the bulbs on a 12v power supply in my shop and they work fine.
Back to the bike....still no high beam.
Damn.
After several times back and forth to the shop, I finally
got pissed and put the bike back together with the original H4 halogens in it.

Came inside and calmed down a bit and thought it over.
Went back out and tested the bulbs on my 12v power supply again.
The bulbs have a standard three pronged plug. The horizontal pin is usually
ground. The two verticals are low and high beam. After testing the bulb again
and verifying my results, I've decided that the LED bulbs are wired correctly.
Obviously, the Goldwing must use a non-standard pin arrangement on it's
wiring harness. Too bad I didn't figure that out while I had the bike all
apart.
I'm too tired now, but tomorrow I'll take the bike apart AGAIN and test the
factory wiring. I'm betting that I'll have to move some pins around in the Honda
three pin sockets!

P.S. I was so annoyed at the headlight problem that I completely forgot to take
care of another project.....I wanted to add a wire to the high beam circuit to control
a set of LED driving lights that I added below the fairing. Didn't even think about it
until I had the bike all back together. Double damn!


George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"

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Charlie1Horse
Posts: 282
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Location: Jacksonville, Florida
Motorcycle: 1986 GL1200A Aspencade
1992 GL1500I Interstate

Re: Wired backwards?....or different??

Post by Charlie1Horse » Sat Aug 12, 2017 11:46 pm

As you have thought, the polarity has to be reversed. I modified my cornering lights to LED and when I had a 1157 incandescent bulb in the light it worked fine but with the 1157 equivalent LED there was no joy. After checking the wiring I found all I had to do was reverse polarity and then it worked as I had planned, lower illumination for driving lights and brighter illumination for cornering. Just had to reverse two wires in the connector. Keep us informed.
Russell

Those who say it cannot be done should try not to interrupt those who are doing it.

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MikeB
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Motorcycle: 1998 - GL1500 Aspencade.
2003 - GL1800A

Re: Wired backwards?....or different??

Post by MikeB » Sun Aug 13, 2017 2:12 pm

George, the headlights should be correct and they should work correctly with your wing.
Looking at the schematic, the green wire connection on the headlights is the ground.
The White/Black is for the low beams.
The Blue/Black is for the high beams.
Looking at a picture of the rear of the headlight assembly, you can see that the left vertical connection for the headlights is the ground or Green wire.
The top horizontal connection is White/Black which is the Low Beams.
The right vertical connection is Blue/Black for the High Beams.
If the LED's you are trying to use are not working correctly with the sockets connected, there may be an issue with the socket connectors not making proper contact with the LED connectors.

Use a VOM and test for voltage at the bulb connectors themselves as well as the main connector on the right side of the headlight assembly.
MikeB
Tacoma, WA, USA

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offcenter
Posts: 394
Joined: Sat Sep 22, 2012 2:10 pm
Location: Lake Hopatcong, New Jersey
Motorcycle: 99 Gl-1500 SE
76 GL-1000
77 Honda Trail 90

Re: Wired backwards?....or different??

Post by offcenter » Sun Aug 13, 2017 4:27 pm

Thank you guys.
I found the problem this afternoon.
It's not the bike. It seems to be in the LEDs themselves.
They must have done something in the power supply for the LED that just
does not like the Honda wiring.
A friend of mine brought over two other LEDs that he had and both worked
fine. He is a whiz with electronics and he could not come up with a reason
why mine did not work. Must be in the units themselves.
So, I just ordered a set like my friend's. We know that his work.
Now I sit and wait 'til they get here, then take the bike apart AGAIN
to put them in. (sigh)
George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"

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FM-USA
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Re: Wired backwards?....or different??

Post by FM-USA » Tue Aug 15, 2017 8:37 pm

offcenter wrote:
Sun Aug 13, 2017 4:27 pm
Thank you guys.
I found the problem this afternoon.
It's not the bike. It seems to be in the LEDs themselves.
They must have done something in the power supply for the LED that just
does not like the Honda wiring.
A friend of mine brought over two other LEDs that he had and both worked
fine. He is a whiz with electronics and he could not come up with a reason
why mine did not work. Must be in the units themselves.
So, I just ordered a set like my friend's. We know that his work.
Now I sit and wait 'til they get here, then take the bike apart AGAIN
to put them in. (sigh)
Before going LED headlights I read SOME bulbs the vehicles wiring needs to be switched around so I stayed away from those.
The one's I have work fine on my Wing.
WOOOoooWEEE!!! BRIGHT THEY BE! (Here harley harley harley with the Bright LEDS, time for your meds 8-) )


"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.

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