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My brake lights and turn signals do not light up

My brake lights and turn signal lights do not work

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  • Cars & Trucks Master
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If an American car- Ford, GM or Chrysler-they all have one thing in common: the brake lights and the rear turn signals share the same circuit. The brake light wire is routed through the turn signal switch. If neither work, it's likely you have a bad turn signal switch.
Japanese and European cars keep the brake light circuit separate.

Posted on Dec 26, 2013

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SOURCE: brake lights and turn signals

I had this same problem on a 1995 Lincoln Towncar -- thought I might have to replace the Signal Switch - then it was suggested to check the ground for this wiring. However I was told to check the HAZARD SWITCH. The Hazard Switch was not On or Off it was stuck in the middle. Simply pushing it up and down correct the problem. I was also told that maybe a little WD40 on the HAZARD SWITCH might help.

This is an easy try me first fix. It worked for me and cost 0.

Posted on Nov 03, 2008

  • 2 Answers

SOURCE: Brake light, Turn signal not working rear right 06' Focus

I have a 2000 ford focus no brake lights. with the brake lights the transmission would not go into drive .replaced the brake light switch checked fuse replaced turn signal switch with no results then i moved onto the wiper switch and replaced it as much to my supp rise it fixed the problems

Posted on Aug 06, 2009

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SOURCE: 99 Chevy Tahoe... Rear turn signals, brake lights, and hazards

I had this problem, and to be honest, it happened to the left side about a week later...it's the board that the bulbs plug into...it's a very common problem with this model. So popular that you can normally get the socket board off the shelf at a parts store! it's extremely simple to replace, and I replaced all the bulbs at the same time!

Posted on Oct 11, 2009

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Why aren't hazard lights or brake lights working?


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Sep 30, 2015 | Cars & Trucks

2 Answers

Brake light trouble right side brake light will not come on but both flashers work also turn signals work older ford truck what could the problem


I have to think the problem is inside the turn signal switch, a poor internal connection. You know the brake signal first goes through the turn switch before it goes to the bulbs. That is why the brake lights and rear turn signal lights share the same filament in the bulb, and the same wire going to those lights. The only difference is the turning side light is affected by the turn signal flasher, causing blinking, while the other side- the non turning side-does not go through the flasher relay, but straight to the bulb from the turn signal switch. Change your turn signal switch and I believe you will solve the problem. Let me know, okay?

Sep 16, 2015 | Ford Cars & Trucks

1 Answer

Third eye works no rear signal or brake lights


The high mount brake light gets its own signal from the brake light switch (on the brake pedal). Or at least the wire leaving the brake light switch will splice, one wire to the high mount brake light, and the other for the rear brake lights is routed through the turn signal switch, and coordinated there with the turn signal wires to the rear brake lights. The brake wires and turn signal wires share the same wire, and same filament in the bulbs. It is kind of complicated, but brakes applied with no turn signal, brake light wire goes from brake light switch through the turn switch and out to the bulbs. If brakes applied with turning signal, non blinking brake light wire goes from turn switch to rear light, while the turning signal wire will go through the flasher relay, and then to the rear light to cause blinking.

I hope that makes sense. It appears the problem may be in the turn signal switch for both the turn signals and the rear brake lights.

Mar 14, 2015 | 2007 Dodge Ram 3500 Quad Cab Laramie

2 Answers

1975 chevrolet truck. turn signals and stop light not working


Your brake lights go through your turn signal as well, That's what disables a brake light when you use your turn signal, In other words, When you hit your brakes, Your brake lights come on, Then when you use your turn signal, It cancels that brake light on the side that you're turning..Make sure you're getting fire to your turn signal switch and if it's coming through when you apply the brakes or use the signals..

Mar 10, 2015 | Chevrolet Cars & Trucks

2 Answers

I have no break lights or turn signals


Turn signal tail lights and BRAKE LIGHTS NOT WORKING


It can be faulty brake light switch causing the problem or its blown brake light bulb. First check and confirm brake light lamp is working and that's not the case.

For turn signal not working it can be faulty turn signal switch or its issue with wiring:----


==========

To trouble shoot brake and turn signal related problem, check the help links mentioned below:-----


Click the link:----
1996 Buick Regal Grand Sport Brake light Switch Location? http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html

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No brake lights on Buick? http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html

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Brake lights not working on 1989 BUICK REGAL?

http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

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How to replace Brake light switch on Chevrolet Tahoe?

http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html

---------------
How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

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Upper brake lights work, but low brake light not working?

http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

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1997 Cadillac Catera: How to replace Brake Light Switch?

http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html

------------


2003 Chevrolet S10 Tail light Fuse http://schematicsdiagram.blogspot.com/2012/11/2003-chevrolet-s10-tail-light-fuse.html

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Chevrolet Parking light and Tail lamp light Wiring diagram http://schematicsdiagram.blogspot.com/2012/11/chevrolet-parking-light-and-tail-lamp.html

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Car Tail Lights Not Working?

http://schematicsdiagram.blogspot.com/2011/12/car-tail-lights-not-working.html

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Turn Signal Not working http://technoanswers.blogspot.com/2012/11/turn-signal-not-working.html

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Right turn signal not working on Pontiac Car?

http://schematicsdiagram.blogspot.com/2011/12/right-turn-signal-not-working-on.html

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Only one side indicator light working on car?

http://schematicsdiagram.blogspot.com/2011/12/only-one-side-indicator-light-working.html

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Turn signals not working on 1987 Jeep Wagoneer? http://schematicsdiagram.blogspot.com/2011/12/turn-signals-not-working-on-1987-jeep.html

1996 Chrysler LHS brake light circuit wiring diagram?

http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html

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How to replace rear Brake lights on 2004 Toyota RAV4? http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html

------------
One brake light on driver side not working, but other lights work?

http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

----------
2002 Lincoln Town car Fuse Box http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html 2007 KIA Rio: Brake Light Fuse Box Diagram?

http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html

-------------
Overhead Brake lights not working on 1999 GMC Sierra 4x4?

http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html

---------
2004 Ford Mustang: Brake light Fuse Location?

http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html

---------

These will help.

Thanks.

Nov 24, 2012 | Cars & Trucks

1 Answer

Is there an adjustment for the stop light switch on a 99 GMC Yukon. I have replace it and my brake lights still do not work. Park lights work fine.


There is no adjustment. The park lights are on a different circuit than the brake lights.
Do you have a third brake light that works. Its also on a different circuit but works from the same switch. Do your turn signals work. They use the same filament as the brake lights.
Also, the brake light circuit goes through the multi function (turn signal) switch.

Since the brake lights and turn signal lights use the same filament in the bulbs, the brake light circuit will pass through the turn signal switch. When a turn signal is used it cancels out the brake light for that side.

Let me know if your third brake light and turn signals work in the rear.
Also, if youy have not already, check/change the bulbs. The type of sockets those lights are in also get burned so look at them well.

Oct 18, 2011 | 1999 GMC Yukon

1 Answer

2001 Town & country brake lights not working, but the third brake light and tail lights are working. I also just replaced the brake light switch thinking it was the problem, but it wasnt


I think the brake light and turn signal are on the same bulb on these, correct?

If so do the turn signals work?

If they do than I would bet that the turn signal switch itself is the problem. The power for the brake lights is routed through the switch (except for the third brake light that is supplied power directly form the brake switch). The turn signal switch will interrupt power from the brake switch and supply power from the turn signal flasher depending on if the right or left turn signal is engaged.

Sometimes wiggleing the lever or pushing the four way flasher button with the brake pedal depressed will intermittantly cuase the brake lights to work. If this is the case than it is the turn signal switch that is causing the problem.

Feb 11, 2011 | Chrysler Town & Country Cars & Trucks

2 Answers

95' Buick regal, 3rd brake light works, tail lights work, turn signals work, stoplight switch seems to work ie 3rd brake light working, fuse is ok, changed bulbs, but no rear brake lights.


If the third brake light works and the regular ones don't, it is most likely a bad turn signal (multifunction) switch. The switch is able to kill the brakes lights to run the turn signals, and in rare circumstances does this. I've seen it several times. It could also be wiring, especially near the turn signal switch, but it is usually the switch.

Nov 25, 2009 | 1995 Buick Regal

1 Answer

REAR BRAKE LIGHTS DO NOT COME ONLY TAP LIGHT IS


Check for power at the turn signal switch. White wire comes from brake switch switch into the turn signal switch. The brake light switch is working because the high mount brake light is working..right? Do the turn signals work ok? if so, then the wiring is OK. The brake signal wires that come out of the turn signal switch are dark green(right) and yellow (left).

Oct 27, 2009 | 2001 GMC Safari

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