Question about 2003 Harley Davidson FXST Softail Standard

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Can you wire led ligts directly to the 04 harley softail wiring harness for neutral and turn signals

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If you are using the full 12+ volts of the bikes electrical system,NO you will destroy the led.
You will need to add a dropping resistor in series with the led so V does not exceed the Vmax of the led.You also don't want to exceed the max current of the led.Most run about 0.020 amps.
You may find leds for sale in the aftermarket auto industry with the resistor preinstalled.
If you don't find these leds let me know what leds you want to use and there specs and I can tell you what resistors you will need to install,led specs can vary from the color ,size and maker.
Thanks,Eric

Posted on Sep 23, 2009

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1977 Harley Davidson Electra Glide turn signals not working


Hi, Debby before testing any electrical component in the Light Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test because your battery may have 12.5 volts or more but little or zero amps causing the battery to be faulty and must be replaced, especially "AGM" batteries, also before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced your OEM lights with one or all LED lights you are going to need a load equalizer.
If no turn signals work the cause could be a faulty turn signal module or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion.
If all four turn signals flash at the same time like hazard lights even though you only pressed one turn signal button then you have a LED light in the circuit and need a load equalizer that can be purchased from any motorcycle parts supplier.
If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function.
If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction.
If your rear turn signals don't work check your rear fender wiring harness connector first for corroded, broken, loose pins/sockets, power, and a good ground, the harness connector is usually located under the seat on the front of the rear fender then keep tracing the wiring look for obvious harness damage caused by the rear tire.
If you still can't find the malfunction backtrack from the rear fender wiring harness connector.
If one side does not work you could have a faulty turn signal switch or module check for continuity.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day.
Turn signal wont flash Harley Davidson Forums Harley Davidson Motorcycle...
https://www.carlsalter.com/pdfs/Harley-davidson-1970-78%20Electra%20super%20Service.pdf
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http://www.harley-davidson.com/content/h-d/en_US/home/owners/maintain-your-bike/owners-manual.html
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Aug 17, 2017 | Harley Davidson 18" 1977 Hd Softail...

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2011 Harley-Davidson FLSTC Heritage Softail Classic right turn signals and brake light not working


Hi, Pamela before testing any electrical component in the Turn Signal Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test because your battery may have 12.5 volts or more but little or zero amps causing the battery to be faulty and must be replaced, especially "AGM" batteries, also before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced your OEM lights with one or all LED lights you are going to need a load equalizer.
If no turn signals work the cause could be a faulty turn signal module or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion.
If all four turn signals flash at the same time like hazard lights even though you only pressed one turn signal button then you have a LED light in the circuit and need a load equalizer that can be purchased from any motorcycle parts supplier.
If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function.
If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction.
If your rear turn signals don't work check your rear fender wiring harness connector first for corroded, broken, loose pins/sockets, power, and a good ground, the harness connector is usually located under the seat on the front of the rear fender then keep tracing the wiring look for obvious harness damage caused by the rear tire.
If you still can't find the malfunction backtrack from the rear fender wiring harness connector.
If one side does not work you could have a faulty turn signal switch or module check for continuity.

Before diagnosing any brake light issue always check the bulb and fuse first for integrity a brake light staying on is usually caused by the front brake light switch, which is mechanical, not disengaging. On early models moving the throttle control housing closer to the front brake master cylinder is the main fix. On late models, the switch gets tweaked and needs to be realigned. A brake light that does not come on when the brake lever is applied can be caused by a faulty switch or no continuity in the wiring at the switch. The rear brake light switch is hydraulic and it is extremely rare to malfunction in a closed circuit condition causing the brake light to stay on. Usually, rear brake light switch issues are caused by no brake pedal free play or a sticky rear master cylinder piston. A brake light that does not come on when the rear brake pedal is depressed can be caused by a faulty switch, air contamination in the brake line, or no continuity in the wiring at the switch.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day.

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Harley Davidson Softail series Service Manual
http://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc
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Hi, Traceyandchriscolvin you need a load equalizer for more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day.
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My 2013 Softtail Slim right side turn signals have stopped working. Bulbs & fuses are good


Hi, Bob before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced you OEM lights with LED lights you are going to need a load equalizer. If no turn signals work the cause could be a faulty turn signal module or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion. If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function. If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction. If your rear turn signals don't work check your rear fender wiring harness connector first for corroded, broken, loose pins/sockets, power, and a good ground, (the harness connector is usually located under the seat on the front of the rear fender) then keep tracing the wiring look for obvious harness damage caused by the rear tire. If you still can't find the malfunction backtrack from the rear fender wiring harness connector. If one side does not work you could have a faulty turn signal switch or module check for continuity. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com Good luck and have a nice day.
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Harley Davidson Softail Workshop Service Repair Manual 2013
http://partsfinder.onlinemicrofiche.com/stcharlesharleydavidson/showmodel.asp?make=hdmc
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1 Answer

2003 Heritage Softail Classic turn signals not working properly


Hi, Anonymous before testing any electrical component in the Light Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test because your battery may have 12.5 volts or more but little or zero amps causing the battery to be faulty and must be replaced, especially "AGM" batteries, also before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced your OEM lights with one or all LED lights you are going to need a load equalizer.
If no turn signals work the cause could be a faulty turn signal module or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion.
If all four turn signals flash at the same time like hazard lights even though you only pressed one turn signal button then you have a LED light in the circuit and need a load equalizer that can be purchased from any motorcycle parts supplier.
If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function.
If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction.
If your rear turn signals don't work check your rear fender wiring harness connector first for corroded, broken, loose pins/sockets, power, and a good ground, the harness connector is usually located under the seat on the front of the rear fender then keep tracing the wiring look for obvious harness damage caused by the rear tire.
If you still can't find the malfunction backtrack from the rear fender wiring harness connector.
If one side does not work you could have a faulty turn signal switch or module check for continuity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day.
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Harley Davidson Softail Workshop Service Repair Manual 2000 2005 $7 very cheap
http://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc
http://mybikemanuals.com/harley-davidson/2005-harley-davidson-owners-manuals
Instant Tech Relief To speak to me personally absolutely "FREE"

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1 Answer

Cant get 3 wire led turn signals to also work as marker lights with the ultima 18-530 wiring harness. I either get one or the other but, not both.


Hi Larry, you might need a load equalizer, for more information about your question please visit the websites below. Good luck and have nice day. Motorcycle Parts Accessories Cycles

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1 Answer

I need to know the pin outs on the wiring harness for brake light,running light and turn signals.


Orange/white = Switched 12 VDC (tail light)
Red/yellow = Stop light
Solid brown = Right turn signal power/signal
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Solid black = Ground

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1 Answer

Hi i am changing the rear end of my 04 harley softail herritage, i have bought new turn signals and tail and stop light.my problem is this.the new turn signals have a green wire each ,one also has a blue...


Get a test light and stick the probe in the connector on the bike and clip the other end to a good ground. Turn on the key and run the turn signals, brake light and running light. Move the probe from hole to hole until you find the turn signal flash, the brake light and the running light. Obviously, the turn signals will flash, the brake light will go on and off when you hit the pedal, and the running light will stay on constantly. the three wires on the brake light are ground, brake and running light. Should be a simple matter to figure out which wires go where from here. If you are using digital lights, i.e. LED lights, the current only flows one way. As an example, if you hook up the turn signals and they don't work, reverse the wires.

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