Weird Tail Light Story GL1500 - Steve Saunders Goldwing Forums

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post #1 of 13 (permalink) Old 03-04-2016, 04:53 AM Thread Starter
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Weird Tail Light Story GL1500

Okay... i had to take half the bike apart to replace the turn signal assembly. I assembled everything testing to make sure everything stayed working as I went.

Bike ran... lights worked... blinkers fixed.

The yesterday this pulls up along side me at a light and says my tailights are out. Sure nuff it's true... brake lights are fine... no tails. Make it into work and dismount to see if its a fuse... they're working.

Afternoon comes... go to ride home. Not working.

Get home... they're working...

Tear half the bike apart again...everything connected properly. Tailights NOT working... can't find a problem.

Start bike... pump brakes a bit to check the brake lights... then the tail lights come on.

Shut bike off. Start it again. No tail lights. Pump the brakes... tail lights come on.

let bike sit over night... engine cold.

Come out to test it again... pump brakes... brake lights work... they have never been the issue. Tail light NOT working.

So... the bike has to be running and warm... and by pumping the brakes a time or two I can the the taillights to work.

And thoungts on what the heck might be wrong?

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post #2 of 13 (permalink) Old 03-04-2016, 06:11 AM
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Maybe a common ground that gets better connectivity when the brakes are applied..?? shot in the dark..

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post #3 of 13 (permalink) Old 03-04-2016, 06:15 AM
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Im thinking probably a bad ground. Have you looked at the large connectors on each side of the frame under the seat?

With no God over the state, the state then becomes not the defender of liberty but the definer of liberty.


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post #4 of 13 (permalink) Old 03-04-2016, 06:24 AM Thread Starter
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Dave...

Off to work in the truck now. This evening, was going to have a look at every connector I can find... with special emphasis on the one I might have fiddled with replacing the turn signal harness. I am soooo tired of working on this bike. Two floods... two sisters dead... no summer tour... and now Spring ride is only a week away... it has been a very bad tear for me. If I don't get to ride soon I am going to explode.
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post #5 of 13 (permalink) Old 03-04-2016, 07:30 AM
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Tail Lights

What model is your bike, Interstate, Aspencade or SE...??

You have tail lights that are powered from two different sources.

1. Trunk tail lights are powered from the relay # 3.

Note: Any other lights not working.....?? Relay # 3 powers a lot of lights etc.

2. Saddlebag tail lights are powered from the ignition switch.

Which ones are not working..??

Or are both of them not working..??

You only have one ground wire running to the rear of the bike. It grounds the tail, brake, turn signal and licenses plate light. You say the brake lights always work......!!

You need to narrow down which tail lights are not working then go from there.

Check the "green" ground wire at the 22-pin connector under the seat (left side).

Check the "green" ground wire where it connects to the radiator. That's the ground source for the rear lights.
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post #6 of 13 (permalink) Old 03-04-2016, 10:23 AM Thread Starter
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DBoher... helpful advice...

1996 Aspencade Pearl Blue, the most rare, and therefore most expensive color

NONE... of the tail lights work... nor do the dash lights...

Unless of course they DO work...

Gonna go after it tonight... when I come in from surviving my day teaching middle school.

By way of green wire that connects to radiator... you are talking about the one that comes out of the stereo bundle under the shelter, right?

T

Thanks

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post #7 of 13 (permalink) Old 03-04-2016, 11:50 AM
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Tail Lights

If you don't have any tail/running lights on the trunk or saddlebags, then I don't think you have a power issue. They get power from two different sources (ignition switch and relay # 3).

I suspect you have a ground issue.

Do this test........

At the White 22-pin connector under the seat (left rear side), connect a jumper wire from the Green (ground) wire to a frame ground (or negative battery terminal).

Do you have rear tail/running lights now.....???

Also clean that connection where the Green wire is attached to the radiator.......!
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post #8 of 13 (permalink) Old 03-04-2016, 12:16 PM
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Quote:
Originally Posted by us385south View Post



NONE... of the tail lights work... nor do the dash lights...



So now we have the rest of the story. How about the front marker lights, position lights etc?

With no God over the state, the state then becomes not the defender of liberty but the definer of liberty.


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post #9 of 13 (permalink) Old 03-05-2016, 07:01 AM Thread Starter
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DBohrer...

Cleaned all the grounds... both the ones that connect to the radiator and the one(s) bolted with the 10mm under the seat.
Ran the jumper test on the left side pin connector... no go!


Dave0430...

Have pulled the entire shelter apart again... no missing plugs... even undid the ones I disconnected in the turn signal repair just to check for broken or bent pins.

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post #10 of 13 (permalink) Old 03-05-2016, 11:12 AM Thread Starter
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Okay... found the problem... the relay... imagine that?

Completely unrelated to my turn signal repair... just a simultaneous coincidental failure of the relay.

Duh...

Full Tupperware party underway here!

T
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