Electrical guru help please
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Tourer
Joined: Apr 2015
Posts: 426
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From: Ohio
Electrical guru help please
So i have an 08 fxd that i put a switchback rear fender on and am running just a light bar for run/turn/stop. Problem is i have only 3 wires coming from the taillights ( black/purple/blue) which im guessing is run/turn/ground? and 4 wires from the harness, running/turn/stop/ground
How can i make this work ?
How can i make this work ?
Last edited by SuperG96; Sep 17, 2016 at 06:40 PM. Reason: Cause
Outstanding HDF Member
Joined: Dec 2012
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From: Texas
without looking at a wiring diagram and based on what I have seen before, I am thinking that the violet wires are turn signals and they plug into the rear tail light assembly, the blue wire is brake, and the black wire is ground..you would need to track the turn signal wires back to the fender harness connector to determine left and right. I do not know how you would make this kind of setup work without a module.
Good luck
Good luck
Club Member
Joined: Apr 2016
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From: Inland NW
Purple and blue will be your turns/stop as stated above. You will have to figure out which side is which. You need tail light wire though, so something sounds "wrong" with the tail light you are talking about. Pics? Model number? Is it truly a multi function unit? You need 4 circuits to make this work, unless the assembly grounds through the housing.
Grand HDF Member
Joined: Jul 2016
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From: Texas
Get a VOM / trouble light
Determine what is what out of the harness
Do same for the light pigtail (specifically identify GND)
Then with a little trial and error temporary connecting - figure it out
-------------
side note
If your harness is as bastardize as you say - make sure you are soldering whatever connections..., then heat shrinking..., then tapping for added rub resistance
Intermittent electrical issues are a special sort of hell..., and poor connections are the quickest way to that hell imaginable
Ghost
Determine what is what out of the harness
Do same for the light pigtail (specifically identify GND)
Then with a little trial and error temporary connecting - figure it out
-------------
side note
If your harness is as bastardize as you say - make sure you are soldering whatever connections..., then heat shrinking..., then tapping for added rub resistance
Intermittent electrical issues are a special sort of hell..., and poor connections are the quickest way to that hell imaginable
Ghost
Outstanding HDF Member
Joined: Sep 2014
Posts: 2,717
Likes: 273
From: Minnesota
As said what your giving us doesn't makes sense.
What "light bar" and how many wires does it have?
What "tail light" or does tail light and light bar mean the same thing?
The 4 wire harness has two wires the same color,, you need to use pin#1 for domestic.
Your signal wires are isolated,, what "harness" are you working with? The main coming from under the seat?
I have the book for an 09,, not that much changed,, get me some straight info and I can probably help.
What "light bar" and how many wires does it have?
What "tail light" or does tail light and light bar mean the same thing?
The 4 wire harness has two wires the same color,, you need to use pin#1 for domestic.
Your signal wires are isolated,, what "harness" are you working with? The main coming from under the seat?
I have the book for an 09,, not that much changed,, get me some straight info and I can probably help.
Last edited by JohnMn; Sep 18, 2016 at 01:16 AM.
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From: South of Mordor
So i have an 08 fxd that i put a switchback rear fender on and am running just a light bar for run/turn/stop. Problem is i have only 3 wires coming from the taillights ( black/purple/blue) which im guessing is run/turn/ground? and 4 wires from the harness, running/turn/stop/ground
How can i make this work ?
How can i make this work ?
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Thread Starter
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Tourer
Joined: Apr 2015
Posts: 426
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From: Ohio
Thanks for the responses guys, i have identified all wire from the main harness
6920024a i believe is from the bike
The light bar is from a '13 streetglide , it has 3 wires from each light (purple, blue,black) black im asummimg is a ground. The bulbs are dual filament in it
6920024a i believe is from the bike
The light bar is from a '13 streetglide , it has 3 wires from each light (purple, blue,black) black im asummimg is a ground. The bulbs are dual filament in it