Question about Harley Davidson FXDWG Dyna Wide Glide Motorcycles

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Blowing fuses tail lights

No rear lights at all except brake light when lever or pedal activated. just had bike detailed

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  • Contributor
  • 18 Answers

Check under your rear fender and make sure your turn signal wires aren't exposed or rubbing against metal that can cause lots of problems

Posted on Apr 13, 2014

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Posted on Jan 02, 2017

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SOURCE: Brake lights

The taillight should be on at all times. The brakelight should come on when the front or rear brakes are applied. Start by disconnecting the front brake light switch then the rear to see which switch is broken. Also check the bulbs. I have seen them short out internally. The filament inside the bulb break and contacts the other circuit.

Posted on Nov 20, 2008

Benimur
  • 6966 Answers

SOURCE: Tail chop performed, brake light doesn't work

Hi,

Offhand, in most bikes, the tailight and the brake light are integrated in a single bulb with a common ground. This would translate then into a 3wire arrangement. The brighter of the filaments is for the brake while the dimmer of the two is for the park/running/tail light. To my knowledge, either the tail or brake lights do not use a relay, they are wired straightforward. Your described problem all points to a mis-connection, possibly the ground wire. The easiest approach would be to identify the ground wire. With ignition switch off, all light switches off, identify the ground wire with the use of a continuity tester (VOM/DVM). Disconnect the wires to the harness, on the harness, it would be the wire with nearly 0 resistance against any exposed metal or the chassis. On the wires going to the tailight assy, it wold be the wire that measures 0 ohms to the metal socket/housing of the bulb.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 21, 2008

  • 8404 Answers

SOURCE: My rear tail light does not work when the front

You should have two filaments in the reat taillight lamp, one for tail light and one for brake light. You are not confusing these filaments/functions are you?

What you seem to be saying to me is that you have a lamp that had no tail light filament (burned out) but does have a brake light filament still intact.

Remove the light and check it visually and/or with a contunity tester.

I hope this helps you ...

If I misunderstood your question, please ask me again

a

Posted on Oct 02, 2009

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SOURCE: Rear tail light does not turn on.1998 suzuki 1500 intruder

It mught be the bulb that needs replacing or else check the wiring to the bulb for continuity in case there is a broken or snapped bit.If you have a voltmeter then you can test the voltage reading at the point of contact..Sometimes rust builds up and a simple cleaning would solve this.Hope this helps.

Posted on Feb 16, 2010

wd4ity
  • 4565 Answers

SOURCE: have tail light working but brake light does not

Starting at the rear brake master cylinder, follow the metal line back towards the rear caliper. you will find a brake pressure switch in the line somewhere. Make sure all connections to this switch are secure.

If so, check the rear bulb for a blown filament. It has two filaments, one for the tail light and one for the brake light.

Posted on Feb 28, 2010

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1 Answer

Tail light and brake light has stopped working YZF-R125


Hi, Anonymous tail light issues are relatively easy to diagnose and repair always check the tail light fuse first and make sure you have power on both sides of the fuse holder and the usual suspects are:
1. Tail light bulb element is broken.
2. Tail light bulb soldered contacts are extremely worn down.
3. Tail light bulb socket corroded.
4. Tail light bulb socket has no power and or ground.
5. Tail light wiring harness damaged from the rear tire.
6. Tail light rear fender wiring harness connector faulty due to corroded, broken, or loose pins/sockets.
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 please click on the links below. Good luck and have a nice day.
How To Access The Tail brake Light Bulb
Yamaha YZF R125 dashboard indicators rear light not working how to fix it
Yamaha YZF R125 Service Manual
OEM parts for Yamaha
Yamaha YZF R125 Owner Manual

Apr 09, 2014 | 2008 Yamaha YZF-R125

Tip

Automatic trasmission lever is stuck in park position


When this happens, usually it is because of a failure in the gearshift selector switch solenoid.
The gearshift selector solenoid is the switch that unlock the lever from park position when driver turns on the ignition and release brake pedal.
When brake pedal is depressed with selector in park position, this energizes the solenoid, unlocking the shifter.
Teh solenoid is energised by same circuit connecting the brake lights.
When for some reason (a short for example) the brake light fuse that protects the circuit blows, this will result in a failure to energize the solenoid, and lever won't be released from park position.
You find the fuse in the fuse box, on Discovery this is fuse number 1. This is a 15 Amps blue fuse. Fuse is located in the fascia fuse panel.
In most cases you fix the problem by replacing the brake light fuse.

Another reason for a failure to energize the solenoid is a faulty brake light switch.
This means the solenoid itself is faulty and need to be replaced.

How to proceed:

Check brake lights. If brake lights are not working, check and replace fuse number one in the fuse box. This will solve the problem in most cases.

If fuse keeps blowing there must be a short in the brake lights wiring.
You will need to access the rear light access panels and unplug the wiring harnesses that connects to the tail light assemblies.
Replace the fuse and try again to start the car, with all tail lights harnesses disconnected. If it starts drive the vehicle to the nearest mechanic, the vehicle will not be safe without tail and brake lights.

When fuse is not blowing check the brake light switch. Remove the panel above the brake pedal. There you find several switches, the second from the bottom will be the brake light switch. Unplug the switch connector, put parking brake on, turn on ignition and short the two green wired pins.
You should hear a click, while shorting the contacts move the shifter out of park position

When brake light are working fine, and lever stays on park position, it is usually the solenoid or its connections that are faulty. Try connecting directly the solenoid to power. The solenoid is connected to red and black wires. Apply 12 Volts across the wires, following polarity. If this worked the solenoid will click, and you will be able to move the gear out of parkposition. When there is no click you need to replace the faulty solenoid that is located in the shifter assembly.

on Aug 26, 2008 | 1998 Land Rover Discovery

1 Answer

Brake lights inopreable


Hi Anonymous, if both the front brake lever and the rear brake pedal do not activate your brake light then you either have a bad bulb, or there is a problem with that docking station behind the tail light, or bad connections and or bad wires either from the ignition switch to the brake light switches or from the brake light switches to the tail lite assembly. So grab your test lite and go to: http://officialharleyparts.com/wiring_diagrams.php for a wiring diagram and strat tracing wires and connections. Good luck

Feb 16, 2014 | 2009 Harley Davidson FLHTCU Ultra Classic...

1 Answer

I have a 2008 Screaming Eagle Ultra classic.Both my front and rear brakes when applied,I get no brake lights.Any suggestions??Thanks


Hi Anonymous, if both the front brake lever and the rear brake pedal do not activate your brake light then you either have a bad bulb, or there is a problem with that docking station behind the tail light, or bad connections and or bad wires either from the ignition switch to the brake light switches or from the brake light switches to the tail lite assembly. So grab your test lite and go to: http://officialharleyparts.com/wiring_diagrams.php for a wiring diagram and strat tracing wires and connections. Good luck

Oct 29, 2013 | 2008 Harley Davidson FLHTCU Ultra Classic...

2 Answers

Tail light and foot pedal brake light does not work but hand lever brake light works.


Probably a bulb/ rear brake switch combination. If your front brake switch is working, then half of the bulb is working. No taillight issue, probably a bulb. No rear brake light, probably the rear brake switch. Located on the lower right rear of the frame, behind the exhaust. Check for power on the orange/white wire at switch. If you have that then check for power on the other terminal of the switch while pushing on the pedal. The rear brake switch is hydraulically operated so you must have adequate pressure to activate it.

May 04, 2012 | Harley Davidson Harley-Davidson Motorcycle...

1 Answer

Rear lights including brake lights just stopped working


There could be a problem with the turn signal lever switch. Power is routed thru the switch to the tail / brake lamps. Also in this power "loop" is the brake light switch, try the following:

Look under the dash, on the brake pedal arm. There are one or two switches that activate brake lights and/or shift unlock. Check for loose mounting nut or a missing rubber nubber. Is the brake pedal coming all the way back up? Look on the floor for something not usually found there. These switches are adjustable and it may be as simple as adjusting them. Have a helper look for brake lights on and shift lever unlocked while you push and release the switches with your finger. Depress the brake pedal to get it out of the way. Remember to set the park brake first. Could just be a bad switch or loose connector. Check fuses and the bulbs.

Aug 19, 2011 | 2000 Ford Escort

1 Answer

Rear brake light does not work tail light does need to know were brake light switch is?


Your bike is equipped with two brake light switch, either of which should cause the brake light to come on when activated. The front brake light switch is in the right handlebar switch housing and it has an activation pin that sticks out of the switch housing towards the front brake lever. A tab on the front brake lever operates the switch. When the tab on the lever moves away from the switch housing, the pin comes out of the switch housing and turns on the brake light. The rear brake light switch is a pressure switch located in the metal brake line that comes out of the rear brake master cylinder and goes towards the rear brake. Just follow the metal from the rear master cylinder towards the rear brake and you'll find it.

Good Luck
Steve

Jun 15, 2011 | Harley Davidson FLHT Electra Glide...

1 Answer

Signal lights tail lights work but when i step on the brake pedal the fuse blows


you may have a shorted brake light switch or a wire at the switch that is shorted to ground.the switch is located at the base of the brake pedal lever and has 2 wires connected to it.check to see if the (I think)the orange wire is firmly connected to the plug connector,this wire should be the power wire to the switch and is not the problem as the fuse only blows when the pedal is pushed.the other wire(I think) is a white wire,this wire goes from the switch to the wiring to the brake lights.this wire could be shorting out causing the fuse to blow,and needs to be checked.

Apr 05, 2011 | Chevrolet 2500 Cars & Trucks

1 Answer

All lights work on the rear except the three brake lights


Sounds like the brake light switch has a problem. Located above brake pedal and activated with the brake pedal arm. Check for power going in and coming out when you apply the brake.

May 24, 2009 | 1999 Dodge Durango

2 Answers

Brake lights


The taillight should be on at all times. The brakelight should come on when the front or rear brakes are applied. Start by disconnecting the front brake light switch then the rear to see which switch is broken. Also check the bulbs. I have seen them short out internally. The filament inside the bulb break and contacts the other circuit.

Nov 20, 2008 | 1977 Honda GL 1000 (K2)

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