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[CVO Couple]

Installed LED turn signal bulbs front and rear, the bulbs flash normal (always have) but the dash indicators still rapid flash. Anybody have a procedure or fix?

[grc]

Check with your dealership.  If I remember correctly, the HDLAN (CAN bus) bikes have a setting in the BCM that can be changed when using LED turn signals, in place of the older bikes needing a load equalizer.

Jerry

[CVO Couple]

I've found other posts stating to run the hazard lights for a spell or it goes away with time/mileage, so far neither has worked. I'll check with the dealer tomorrow, going there anyway.

[Twolanerider]

I've found other posts stating to run the hazard lights for a spell or it goes away with time/mileage, so far neither has worked. I'll check with the dealer tomorrow, going there anyway.

It's an issue of measured current draw.  Less than what is expected relative to the current settings and you'll have the issue.  The BCM can be set to accommodate the LEDs.  It could vary with different lights also as not all LED lights pull the same.

[motor1]

All you have to do is turn on emergency flashers for a couple of minutes, ECM will relearn the cuurent draw and return Flash rate to normal.

[Road Dad]

So to the ones that posted what is draw??

U = I x R. I assume that you mean that I (amp) is the draw?

Assuming U = 12 (13. what do you suggest I is then?

You can't possibly mean that draw is R?  (Ohm)

[GregKhougaz]

I've been through this a couple of times now.  Motor1 is correct.  Run the flashers for about 30 seconds then turn off the ignition.  You may have to repeat that process.  You did not say what brand of LEDs you purchased but he is reciting Kuryakyn directions.

It's an issue of resistance.  That's why on the old systems, you needed to compensate by adding "load equalizer"  which was in fact, a resistor. (Ohms).  I think that is what Twolane refers to as draw.   

[grc]

Draw is current (amps).  Assuming constant voltage, current is inversely proportional to resistance.  Less resistance, more current flow.  Thus with the older systems adding a light that has less internal resistance, like a LED, would allow more current to flow which would cause the blink rate to increase.  Adding a resister to the circuit (load equalizer) would bring the current flow back down to what the system needed to function normally.  With the CAN bus system, this is all handled by the BCM and no external equalizer is required.  If the system won't self learn by following the instructions posted by motor1, then see the dealer and they can manually set the BCM appropriately.

Jerry

[CVO Couple]

I installed Superbright LED 1156 and 1157 bulbs. I'll try running the flashers again. Its just strange how the bulbs themselves flash at the normal rate but the indicators on dash don't.

[03Lightningrocks]

The way I understand it is the bike computer thinks the bulb is out. You may also notice the red indicater light staying on.

[CVODON]

Call Custom Dynamics and the phone person will fill you in on the process to stop this. I called from side of the road and was back riding in a couple minutes with problem corrected.
Also, try some Custom Dynamics LED's much brighter (and more expensive) that Superbright LED products. FYI

[Puma]

I installed Superbright LED 1156 and 1157 bulbs. I'll try running the flashers again. Its just strange how the bulbs themselves flash at the normal rate but the indicators on dash don't.

That's what happens. 2014 and 2015 - running the flashers for a few minutes should do it. Pre 2014 = Load Equalizer. I did the Custom Dynamics, Dynamic Ringz and didn't have to run hazards, but I only changed the fronts, because the Road Kings, and now SG's have stock LED run, stop, turns on the rear. Not sure if that helps the system adjust...Jerry?

[HighOnHD]

Draw is current (amps).  Assuming constant voltage, current is inversely proportional to resistance.  Less resistance, more current flow. Thus with the older systems adding a light that has less internal resistance, like a LED, would allow more current to flow which would cause the blink rate to increase.  Adding a resister to the circuit (load equalizer) would bring the current flow back down to what the system needed to function normally.  With the CAN bus system, this is all handled by the BCM and no external equalizer is required.  If the system won't self learn by following the instructions posted by motor1, then see the dealer and they can manually set the BCM appropriately.

Jerry

Actually LED's have higher resistance, and thus draw less current. The load equalizers actually lower the resistance and increase the current to "fool" the system into thinking it still has a higher current drawing bulb in the system. Confusing. I know!

You actually got it right when you initially stated " Less resistance, more current flow."

[HighOnHD]

I installed Superbright LED 1156 and 1157 bulbs. I'll try running the flashers again. Its just strange how the bulbs themselves flash at the normal rate but the indicators on dash don't.

I personally replaced just the fronts and the system "learned" it and started working correctly after running the flashers for awhile. I would suggest putting either the front or rear bulbs back in and let it learn about the change with just those. After it works correctly for those, then put the other LEDs back in and let it adjust for them. Should work.

[CVOStreetglide]

Will the "relearn/flasher " function work on a 2009 FLHX Street Glide with the Custom Dynamics LED Running/ turn signals  white/amber or will I need a pricy load equalizer?

Regards

Jerry