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Old Mar 16th 2019, 03:32 PM   #1
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I Ride: '12 1199S, '06 SC1000
Custom LED front turn signals not working

Hi all,

I am attempting to install a set of LED strips into my 1199s headlight for turn signals. I purchased a set of HD strips from Diode Dynamics:

https://www.diodedynamics.com/hd-led...ip-single.html

When running some tests before I open the headlight, I could not get them to light on either side. When I connected them to the rear turn signal harness, they function properly.

Since the OEM front signals are LED, I didn't think I'd need to install resistors.

Any pointers on how to get these to function would be awesome! I read some related threads on checking the load on the circuit, If it's too high, or low compared to stock, that might be an issue.

Does anyone know what the load of the stock circuit is? My bike doesn't have the stock mirrors anymore.

Thanks!
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Old Mar 16th 2019, 06:11 PM   #2
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Sweet, I was able to fix my issue...though I don't quite have a full understanding why.

tldr, I had to have both front turn signals plugged into the harness, with a resistor in parallel to get my custom LED to blink consistently at a proper rate.

Before I only had one of my new leds connected, without a resistor. It would not turn on at all. My voltage read 0. Then, when I had a OEM-like turn signal connected and my custom LED, the OEM-ish led would blink as normal, but my custom LED would flash once and then stay off. When I added a resistor (unknown value, but I ripped it from another led-turn-enabled bike) my custom led operated as normal!

Another victory for man in the war to mod our bikes
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Old Mar 16th 2019, 07:16 PM   #3
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I Ride: 2012 1199S - 2006 Husaberg 450E BMW K1300S 1978 Ducati 900SSD
Originally Posted by alexkoch1 View Post
Sweet, I was able to fix my issue...though I don't quite have a full understanding why.

tldr, I had to have both front turn signals plugged into the harness, with a resistor in parallel to get my custom LED to blink consistently at a proper rate.

Before I only had one of my new leds connected, without a resistor. It would not turn on at all. My voltage read 0. Then, when I had a OEM-like turn signal connected and my custom LED, the OEM-ish led would blink as normal, but my custom LED would flash once and then stay off. When I added a resistor (unknown value, but I ripped it from another led-turn-enabled bike) my custom led operated as normal!

Another victory for man in the war to mod our bikes
Good on you. I love hearing about blokes that have a go themselves. Conquering the problem is very satisfying and you have taught yourself a lot about the bike and helped out others by publishing. Thanks for the post.
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custom, front, led, signals, turn, working



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