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I recently purchased a set of HD spotlights (flood lights) with attached turn signals for a 2008 custom built softail. From the minute I cut the wires from the turn signals that were attached to the handle bars, the left began blinking continuously and I cannot get it to shut off. I purchased a new turn signal module before doing ANY research. Turns out, that did not fix anything. After research and some discussion, I am pretty sure I have lost a very important ground wire. The original turn signals that were on the handle bars had two wires (red & black) and the turn signal itself being connected to the metal handle bars acted as a (or THE) ground. The turn signals on the spot light bar has three wires (purple, blue & black). I can get the right turn signal to operate without issue. These turn signals also act as running lights, and like I said, I can get the right to operate without issue. The left, I can get operating except I cannot get it to shut off. I can go on and on about the variations of wiring I have tried, but we'll save that for later. I'm hoping I'm just missing something obvious and someone will have the solutions to my issue maybe through experience. Any advice is helpful. I'm going to research the turn signal module wiring code just for knowledge until I get some answers back. Thanks guys!

Jason
 

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Have you tried wiring the old signal back up??
 

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I have rewired the old signals back on. Essentially completing the circuit, the left still blinks continuously. The right will still operate normally.
 

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I have rewired the old signals back on. Essentially completing the circuit, the left still blinks continuously. The right will still operate normally.
Is there a chance that you could have shorted the left turn switch causing it to be stuck on now?
 

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You say the bike is a custom built Softail, do you mean the bike was built from the ground up?

What are you using for a wiring diagram, does it have an OEM wiring harness?

Unplug the connector for the left handlebar switches, check the switch with an ohmmeter.

Check continuity between the orange/white wire and the white/violet wire, you should read infinity resistance until the button is pressed, then it should go to zero..

Make sure you are testing the handlebar switch side of the connector, not the main harness side.
 

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You say the bike is a custom built Softail, do you mean the bike was built from the ground up?

What are you using for a wiring diagram, does it have an OEM wiring harness?

Unplug the connector for the left handlebar switches, check the switch with an ohmmeter.

Check continuity between the orange/white wire and the white/violet wire, you should read infinity resistance until the button is pressed, then it should go to zero..

Make sure you are testing the handlebar switch side of the connector, not the main harness side.
+1 :thumbsup
 

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Discussion Starter #9
Is there a chance that you could have shorted the left turn switch causing it to be stuck on now?
It appears the issue was in the turn signal switch. I finally decided to disassemble the left side control housing from the handlebar. As soon as I did that, the turn signal began working correctly. I adjusted the wires to ensure they were not touching (that was the only thing I figure could have been shorting it out) and reinstalled. They seem to be working fine now that it is all put back together. Thanks for the ideas, guys! I'm sure I'll be back at some point with the need for more!
 
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