Question about 1993 Harley Davidson XLH Sportster 883

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Rear brake lights won't shut off when the bike is

My rear brake lights will not shut off when the bike is on, its not the running lights, but is the bright brake lights. Any ideas?

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Brake pedal switch adjustment / replacement either at handle bars or foot brake.

Posted on May 13, 2010


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1 Answer

Rear brake problems

"pedal all the way down, no movement of caliper"
Sounds like hydraulic problem.

Check if you have enough brake fluid.

If so, it could be a bad master cylinder.
Rear brake light switch won't work without hydraulic pressure (which also works the caliper), while front brake light switch is mechanical.

Sep 02, 2013 | Harley Davidson FLSTF - FLSTFI Fat Boy...

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Running lights on 06 road king does not work at rear of bike, everything else is working fine

Hi Anonymous, always check the bulbs first for broken filaments. Then check the connection at the rear fender wiring harness, inspect for corroded, broken or loose pins. Use a dab of dielectric grease and repair as necessary. Check your brake relay if you have one. For a free wiring diagram please visit the website below and good luck:

Oct 14, 2012 | Harley Davidson FLHRCI Road King Classic...

1 Answer

Brake light stays on all the time

There are two brake light switches on your bike. One for the front brake and it's located in the right handlebar switch housing and a pressure switch that is usually underneath the bike somewhere for the rear brake. You can find the rear brake light switch by following the metal brake line that comes out of the rear brake master cylinder until you come to a switch with some wires on it. On the older bikes, you could unplug the wires to see which switch was holding the light on. If the brake light goes off when you unplug the wires, it's this pressure switch that has the light held on. If the light stays on, it is the front brake light switch. On your bike, check for looseness in the front brake lever. If the lever and pin are worn, this will cause the lever to not depress the switch in the side of the switch housing facing the front brake lever. Your front brake switch may be broken. Odds are that the front brake switch is the one causing the problem.

Good Luck


Jul 24, 2011 | 1993 Harley Davidson FLSTF Fat boy

1 Answer

Recently the brake failure light of my 05 R1200RT has been coming on during rides. It seems to occur when I depress the rear brake pedal. I then lose all rear braking, and the front brake required...

Hi, Dhigginsbuil for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. If necessary, transport your bike to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your issue. For more information about your issue please visit the website below. Good luck and have a nice day.
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Jul 17, 2011 | 2007 BMW R 1200 RT

1 Answer

I have a 2000 roadking. the brake light is not working but the tail light works. changed bulb there is power going to the brake light switch an u can hear the relay clicking when you hit the brakes. but if...

To begin with, there is no relay for the brake light. That thing you hear clicking is a circuit breaker. You probably have a short circuit between the rear brake light switch underneath the bike and the brake light itself. If the tail lights work, then you know what circuit is ok.

Look at your rear brake master cylinder. Find the metal line coming out of it going to the rear of the bike. In that line, under the bike, you'll find a pressure switch. This is the rear brake light switch. The front brake light switch is located in the right side handlebar switch housing. If neither switch works the brake light, odds are you have a short circuit in the wiring from the rear brake light switch to the rear brake light itself.

Good Luck

Feb 25, 2011 | 2000 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Rear brake light not working

The brake light is turned on and off by either of two switches on your bike. The front brake lever has a switch located in the right handlebar switch housing. When you squeeze the lever, a pad on the lever moves forward allowing the switch button to move forward making contact which in turn switches the brake light on.

The rear brake lever operates a plunger inside the rear brake master cylinder that pressurizes the rear brake and rear brake hose and line. The rear brake line has a tee fitting in it along it's run with a pressure switch in the tee. Once the pressure on the line gets high enough, the switch turns on the brake light.

If your rear brake light switch is not working, check to make sure the wires are on the prongs of the switch. If they are, replace the switch. It simply screws out and a new one screws in. Most of the time you don't have to bleed the brakes as long as you don't move the rear brake pedal with the switch out. Check the rear brake for proper operation prior to riding the bike.

Good Luck

Jun 17, 2010 | 2008 Harley Davidson FLHRC Road King...

1 Answer

No brake light

There is no brake light relay as far as I know. The brake light is operated by either of two switches. There is one switch inside the right handlebar switch housing that is made when you pull the front brake lever. The other switch is under the bike somewhere along the metal brake line running form the rear brake master cylinder to the rear brake caliper. This is a pressure switch. Check the two wires running to this switch as the power for the front brake light switch comes through the wiring at the rear brake pressure switch. Jumpering this switch should cause the light to come on.

May 24, 2010 | 2000 Harley Davidson FLHTCUI Electra Glide...

1 Answer

The blinkers work but the brake lights dont for a 2003 harley davidson dyna super can i fix this?

Check to see if the brake light works when you apply the front brakes. If they work but if the brake light won't come on when the rear brake pedal is depressed, the rear brake light switch is bad. Find the rear brake master cylinder and you'll see a metal line coming out of it. Follow the line back towards the rear of the bike until you come to a tee in the line. The brake light switch is screwed into the tee and a couple of wires plugged onto it.

If neither your rear brake light nor you tail light works, first check the bulb. If the bulb is good, you might have a wiring problem. The wiring is a sub-harness that plugs up under the seat area and then runs back to the rear light assembly. The turn signal wiring usually run down each side of the rear fender behind the fender struts.

Ride Safe

May 20, 2010 | 2005 Harley Davidson FXD - FXDI Dyna Super...

1 Answer

02 harley fxdwg brake light stays on

Make sure your rear brake pedal has freeplay in it. when you slowly push the lever down by hand you should be able to feel some freeplay. if not the the reason it keeps staying on is because the vibration of the motor is actually pumping up your brake ( light too ) and not releasing it until it bleeds off the pressure.

Jun 23, 2009 | 2002 Harley Davidson FXDWG Dyna Wide Glide

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