turn signals only work with brakes


Information and questions on GL1500 Goldwings (1988-2000)
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GreggN
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turn signals only work with brakes

Postby GreggN » Sun Jun 21, 2015 12:19 pm



Last Monday, during my morning commute, I discovered that my turn signals only worked when I was also using the brakes. One of my buddies suggested that I swap relays around, to see if one was faulty. I'm not much of a mechanic, but I finally figured out how to access the 20A relays on my '94 gl1500i. Since there were 6 relays, I swapped 2 of them and tested. Then swapped a different pair and tested. After the 3rd swap, I still don't know why the turn signals only work in conjunction with the brakes. Does anyone have a suggestion - or perhaps I should put the bike back together and ask my mechanic to fix it?
Thanks in advance, for any and all advice.



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virgilmobile
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Re: turn signals only work with brakes

Postby virgilmobile » Sun Jun 21, 2015 3:14 pm

Without applying the brakes,does the Hazzard flash all the lights with the key on.?
If it works, suspect fuse 2 (horn/turn) and relay 1 (horn /turn).

GreggN
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Re: turn signals only work with brakes

Postby GreggN » Sun Jun 21, 2015 4:04 pm

Yes, with the key on, all the hazard lights work. I swapped fuse 2 with fuse 3 (counting from the top, on my bike both of those slots have 15A fuses). That didn't seem to make a difference with the turn signals and hazard lights. Then I swapped the relay for horn/turn with the relay for ign. The symptoms appear unchanged. Maybe my problem is the turn signal switch?

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virgilmobile
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Re: turn signals only work with brakes

Postby virgilmobile » Sun Jun 21, 2015 5:54 pm

I'm gonna check a couple of things on mine...Just to be sure...Your blinkers operate normally only if your brake lights are on..correct?
Both left and right turn signals do the same? Only flash if the brake is held on.Let off the brake and they quit flashing...
The 4 way flasher (hazzard) seems to work fine with or without the brake light on...Right?

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virgilmobile
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Re: turn signals only work with brakes

Postby virgilmobile » Sun Jun 21, 2015 7:46 pm

Well,I can't simulate anything like what you describe...Does your bike have a trailer plug or add on lighting...possibly a brake modulator.
I just can't seem to find any possible connection to the brake lamp circuit in the schematic.

GreggN
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Re: turn signals only work with brakes

Postby GreggN » Sun Jun 21, 2015 8:42 pm

Thank you for spending so much effort to diagnose my problem. Yes, the hazard lights work both with and without the brake. Perhaps I should mention that I don't use the hazard lights much. I believe that the little hazard button lost the ability to stay depressed a long time ago, so the hazard lights only work when I hold the button/switch. Something that I did today has changed the symptoms with the turn signals. They still don't work without the brake, but now they only give a single flash when I use the brakes.

It is possible that some non-standard wiring is involved. I bought the bike about 4 years ago. When I bought it, they told me that police lights, sirens, etc. had been removed.

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virgilmobile
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Re: turn signals only work with brakes

Postby virgilmobile » Sun Jun 21, 2015 8:56 pm

Well that's interesting.Usually when I strip a unit( I am a up fitter for public safety equipment) I reconnect all the original wiring back.Its possible the turn signal and brake circuits were cut into for police package lighting control modules that make them flash and the person who stripped the unit just butt spliced the original wires back together.
Those reconnections may have failed.
Sorry but you'll have to start looking carefully at the harness for any splices that are obviously not factory.Under the seat,toward the trunk is the most likley place to make those connections.
Fortunatly,Honda follows a specific color code.You would never find a purple wire attached to a white one.
Any crimp butt splice is suspect.

GreggN
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Re: turn signals only work with brakes

Postby GreggN » Sun Jun 21, 2015 9:49 pm

Sounds like quite a job (for someone like me). Thanks for the advice.

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virgilmobile
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Re: turn signals only work with brakes

Postby virgilmobile » Mon Jun 22, 2015 6:52 am

I'm guessing because whatever you were near last time had a effect on the flashers.Expect a bad connection or ground.There all right by the trunk,under the seat.Take pictures if you find something.

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dingdong
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Re: turn signals only work with brakes

Postby dingdong » Mon Jun 22, 2015 7:22 am

My vote goes to a bad ground connector. Under the seat is a large connector on the left side in a black plastic box. There is one green wire feeding the rear lights. That ground can effect lights in the rear as well as the front. Open the box and check for a burned pin.
Tom

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WingAdmin
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Re: turn signals only work with brakes

Postby WingAdmin » Mon Jun 22, 2015 12:22 pm

I also vote for a bad ground. Virtually every time you have some weird electrical problem involving normally unrelated systems, like "turn signals don't work when CB is transmitting" (yes I heard that one before) it's because of a bad ground.

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Uncle Fester
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Re: turn signals only work with brakes

Postby Uncle Fester » Mon Jun 22, 2015 1:11 pm

dingdong wrote:My vote goes to a bad ground connector. Under the seat is a large connector on the left side in a black plastic box. There is one green wire feeding the rear lights. That ground can effect lights in the rear as well as the front. Open the box and check for a burned pin.


Personal experiance with this GREEN wire Dingdong ? Lol that stupid wire drove us nuts for a time, yes ? ! ? :lol:
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dingdong
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Re: turn signals only work with brakes

Postby dingdong » Tue Jun 23, 2015 7:11 am

Uncle Fester wrote:
dingdong wrote:My vote goes to a bad ground connector. Under the seat is a large connector on the left side in a black plastic box. There is one green wire feeding the rear lights. That ground can effect lights in the rear as well as the front. Open the box and check for a burned pin.


Personal experiance with this GREEN wire Dingdong ? Lol that stupid wire drove us nuts for a time, yes ? ! ? :lol:


Yep! Sure did.

Tom
Tom

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GreggN
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Re: turn signals only work with brakes

Postby GreggN » Wed Jun 24, 2015 6:44 am

dingdong wrote:Under the seat is a large connector on the left side in a black plastic box. There is one green wire feeding the rear lights. That ground can effect lights in the rear as well as the front. Open the box and check for a burned pin.


Thanks for the excellent description, dingdong. I'm attaching pictures, but I didn't see anything that was obviously wrong in that plastic box.
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Uncle Fester
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Re: turn signals only work with brakes

Postby Uncle Fester » Wed Jun 24, 2015 1:35 pm

On my bike, there are two of those blocks, one on each side, the one wih the issue was the white block on the right hand side. . . .was a green wire in the corner connector of the block.
Reputation is what other people know about you. Honor is what you know about yourself. Our stress about it happens when the two aren't the same. Be true to yourself and to hell with what everyone else thinks!

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GreggN
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Re: turn signals only work with brakes

Postby GreggN » Fri Jul 17, 2015 11:32 am

I've been quiet for a while because I took the bike to my favorite mechanic. After about a week, he suggested that I might want to take it to a Honda dealership. After a few more days, the mechanics at the dealership told me that they *think* the problem is the turn signal controls ( part # 35200-MW5-872 ) but they can't find the part. They offered to install it, if I could find the part. So I found the part online and placed the order. Several days later, the vendor cancelled my order because they can't get the part from their supplier.

Aaarrrrgghh!!!

Does anybody want a beat up gl1500i that mostly works? Will sell it, real cheap!

Signed,
Frustrated in Michigan

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Re: turn signals only work with brakes

Postby WingAdmin » Fri Jul 17, 2015 12:52 pm

You might be looking at eBay or a bike breaker - a quick eBay search turned up this:

http://www.ebay.com/itm/honda-gl1500-go ... 1b&vxp=mtr

GreggN
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Re: turn signals only work with brakes

Postby GreggN » Fri Jul 17, 2015 1:27 pm

Thanks, WingAdmin, for pointing out that eBay auction. I have seen it, but it is a different part number. I don't know enough about bikes to guess if it could be substituted. Haven't found any auctions with the right part number (yet).




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