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A bad brake light switch or a bad headlight switch, or the power source of the fuse has a problem or break in the wire (circuit).

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Q: Why do the brake lights or tail lights not work if you change bulb and the fuses are good?
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Your brake lights have stopped working Fuses ok?

Is the light bulb inside burnt out. If so, that would do it.


91 civic brake lights don't want to work after changing bulb and fuse what else should i look for?

If the bulb will not work the fuses under the dash should be checked. When these fuse fail the brake lights will not turn on.


1990 240 DL - Brakes lights are out - no owners manual - Fuse box open which fuse do you check for this?

Check all the fuses and replace all of the blown fuses. If you still have no brake lights check your brake light switch. The brake light circuit also runs through a red cylindrical shaped relay called the "failure sensor" which lights and indicator bulb in the intrument cluster if a brake light bulb or some other bulb has failed. Internal failure in this part will often have the symptom "No brake lights".


What will cause brake lights not to work or running lights do have turn signals?

A blown bulb. Check fuses and then start replacing the bulbs one by one.


How do you locate a problem with only one side of brake lights that don't come on topaz?

Try to find out if the car have fuses for left and right brake lights. And did you replace the bulb on the side that is not working?


How do you get to brake lights to change the bulb?

Usually through the back panel in the trunk


Why dont your brakes light work?

First check if bulbs and fuses are good and see if the back lights come on when you turn on the lights. If everything works and the bulbs and fuses are good then its most likely the brake switch on your brake pedal, its usually the only thing wired to the brake pedal. If its not that you might have a short somewhere but usually its either fuses or the brake switch, both are cheap and easy to change.


Brake lights don't work for Porsche boxster?

there are under the brake pedal a switch which control brakes ligths . You may check the swich after checking fuses,and bulb.


If your brake lights work but not the tail lights and its not the fuse?

Have you checked your bulbs ? The tail light / brake light bulb has 2 wires inside it In my case I have had to change each bulb because the brake light portion did not work but the tail light portion of the bulb did ( I'm assuming that your front park lights are working )


You have an 1984 ford bronco tail lights and blinkers work but no brake lights you have tried fuses and the brake light switch but still have no brake lights?

Something you may not realise is that the brake light bulb is often one bulb with two elements. One of the elements will be for the brake and the other will be for the tail lighting for example so,when tested, the actual bulb will still light up because the second element is unaffected. Make sure that the 'blown' bulb that you are actually changing is not in fact your fog lamp. This will not automatically light up when you test your lights as you have to operate this light separately (similarly to indicator lights). So the fog lamp bulb will appear to be the only one not lit up when you test your lights. Find the bulb with two elements inside and change that one. Sounds obvious (and may be obvious to many) but it's a common mistake. Hope this helps!.


How do you fix 1995 thunderbird brake lights i changed fuses and they still wont come on?

if the plug is receiving power but the lights wonbt come on you may have to replace the entire lens piece since the brake lights are not a normal bulb they are built into the lens


Can a bad bulb cause all brake lights in a 98 ford ranger to fail?

It can if it is a dual filament bulb as found on most US. makes. The brake light filament can short over to the tail light filament inside the bulb and when the brakes light is activated, all the tail lights and front marker lights will light also, probably blowing fuses.