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Changed 2013 FXDF Fat Bob incandescent turn signal & Running lights to(Eagle Lights) LED’s. I’m having issues, All turn signals & running lights are operating normally. Here’s the issue on the dash Signals flash correctly for 2 flashes then go rapidly. Bike keeps throwing codes LT & RT Turn signals circuit open, HD has replaced the ECM & BCM, No change. A few day’s ago they connected it to the Digital Tech and changed a BCM setting. Said it would take a while for BCM to learn the LED’s. Several rides later No change, I have tried multiple methods of correcting it. HD said said bike should not need any sort of resistor’s or equalizers due to it having a BCM. If anyone takes the time to read this entire message I appreciate it, Thank you. Any suggestions are very welcome, I’m just frustrated with problem been dealing with it for 1 year, Ughhhhh. do you think I can still add the equalizer, Without toasting anything?
I would start by turning on your hazards and see if the systems learns them. I know it works on 2014+ but not sure on 2013's, but certainly worth trying.
If you see hyper flash after swapping to LED's for TS lamps, then the load of the lamps used is low enough that the flasher circuit believes the incandescent bulbs are blown out. The hyper flash is a noticeable warning/alert that there is an issue w/ the circuit.
Many of the high end LED lamps now have sufficient resistance built into them, others still require an external load equalizer.
Adding a load equalizer cannot mess anything up, it will only trick the circuit into treating the LEDs as if they were incandescent.
You can likely get away with using a very inexpensive, plug & play resistor pack.
I found one on eBay for about $10-$20 that has worked fine for 4+ years now.
The problem is likely that the new LEDs draw so little current that the BCM can't adjust for it if the learn process doesn't work. You'll need to had resistive load to each right and left turn signals.
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LED Issues
