Question about 2001 Chevrolet Blazer

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No turn signals or brake lights on left and right but brake light on top

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  • jonenglish3 Feb 02, 2009

    The brake lights on my 02 Trailblazer don't work, but the top middle light does work when I brake. Can I get pulled over for this if I wait until I get paid to fix this.

  • Anonymous Feb 26, 2009

    1991 astro no brake lights left turn signal, fuses good

  • shiloahs Mar 01, 2009

    my upper brake light works but neither tail light. also only the front right blinker blinks. when dark all lights come on and function, but will not blink and turn brighter when braking.

  • Anonymous Mar 23, 2009

    Same problem, 3rd Brake light works, the others dont. My Turn signal lights till work tho so i guess its the brake switch?

  • Daniel Jenkins
    Daniel Jenkins May 11, 2010

    Try adjusting your tilt steering column to a different position. If this fixes the issue just leave the column in that position or contact a steering column repair shop for repairs.



    Could also be faulty relay, fuse, could be lots of things. Need to have it diagnosed by a professional.

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I agree. My brake light dont work. Only the third brake light does. The running lights work but when i apply the brakes the rear tails dont light up.
I currently have this issue along with the signals dont work unless I bang the top of the steering colum. The hazard switch doesnt work either. If the signals dont work it makes this very quick clicking sound on the passenger side. I checked the fuses and they are good. The bulbs still work. The brake switch works cause the third brake light goes on. And seeing as I am having a problem with signals.....GM says I have to replace the switch in the steerg colume. Its a little box about the size of a cigarette pack. If you take apart the panels off ( right behind the steering wheel, where the hazard switch is) ...that is where it is located. Its plugged into the signal lever. Hope this helpa....Good luck everyone with this issue.

Posted on Apr 01, 2009

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  • Chevrolet Master
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I am familiar with this issue, a family memeber had the same problem, I did some checking and found the turn signal switch as defective.

Posted on Oct 17, 2008

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  • Master
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Hope our chat gets you fixed up

Posted on Oct 17, 2008

4 Suggested Answers

  • 88 Answers

SOURCE: rear brake lights don't work

you prob got a trailer plug prob bad wires if not tail lights run through turn signal switch tell fix ya bout me ok

Posted on May 23, 2009

AUTODOC01
  • 216 Answers

SOURCE: brake wiring diagram chevy lumina

why not just replace the turn signal switch must faster and safer . buy one from your local parts house then you can see its not that easy to install but you can do it with a little help

Posted on Aug 26, 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

6ya6ya
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Posted on Jan 02, 2017

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2 Answers

Trailblazer no brake lights


As in the previous comments the brake switch wire goes to the turn signal switch and the third brake light. Since the 3rd brake light is working, the problem is in the turn signal switch. When the switch is centered, both brake lights have 12v to them. When you make a left or right turn, the switch has to switch connections between the turn signal blinker and the brake light circuit for the appropriate illumination of the proper light sequence. Buy a new turn signal switch and temporary plug it in. You will see the proper operation.

Mar 13, 2015 | 2005 Chevrolet Equinox

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I have a 2002 ford expedition that has a problem with the turn signals. when you turn on the right signal it works properly, but when you turn on the left signal both signals on the back of the vehicle...


Get a wiring diagram from the Free portion of the Autozone site. It is a little work to separate the Help categories at the bottom of their Webpage.

I have heard of SOME 4-way flashers that are built into the turn stalks causing problems. The contact pins for the turn signals are shared as 4-way flasher pins. Try clicking the 4-way flashers off/on about 20 times and then use the left turn signal. It has been known to reseat the contact pins.

The wiring diagram I mentioned would show where the tailgate top light gets its power. One feed should go to the brake light switch for the brakes and another feed should be the flasher feed.

As I see it, you have 2 extra lights going on when you use the left turn signal. Those 2 lights are the tailgate light and right turn signal. The wiring diagram should show the places where the wires are close enough to cross. I am thinking the 4-way flasher is the only place where the top tailgate light gets flasher power; the rest of the time the tailgate light is a Brake light.

I do not want to spend your money on an unnecessary turnstalk and that is why I say to look at a wiring diagram and see if there is anyplace where the wires could cross.

Last, trailer hitch plug. All wires are bundled with left turn, right turn, and brake light in the trailer hitch plug. Corrosion could connect the terminals.

Would like to know what you found.

Oct 08, 2013 | 2002 Ford Expedition

1 Answer

Brake lights won't work.... replaced fuse it's fine, top light on hatch works, but right and left don't


need to check the multi-function switch. the brake light signal goes through the turn signal switch on the steering column. the brake lights come on if the turn signal is not being operated. the circuit for the brake light can loose contact in the switch.

Aug 12, 2011 | 2007 Chevrolet Tahoe

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1995 gmc K2500 left and right brake lights come on with ignition turned on. 3rd brake light comes on when you step on the brake 4 way flashers do not work. Ignition turned off 4 way flashers and brake...


I think your trouble is in the turn signall switch, just had the same trouble on my truck. Turn signall switch is about $250 because it is actually turn signalls, wipers, washers, 4 ways, and dimmer all in one.

May 12, 2010 | Cars & Trucks

1 Answer

Brake light, reverse light and turn signal issues


Hello. The symptoms you are describing are likely due to a poor ground. Temporarily install a new ground wire by securing a piece of copper wire to the frame with a self tapping screw. Use this ground wire along with the hot wire to see if each of these lights works. If it does, trace the ground wire back to the frame, unscrew it and clean up the metal with emery cloth so you reestablish a good ground.

Jan 28, 2010 | 2003 Ford Windstar

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

1 Answer

No brake lights or turn signals head lights and turns work on the front and i have parking lights all around and all fuses are good


It is most likely your brake light switch. The wiring from the brake light switch goes to the turn signal switch. When the turn signal switch is centered both brake lights are connected, unless the switch is faulty. When the switch is to the left only the right light is connected to the brake light switch and vice versa. A bad switch can cause all kinds of problems with the brake lights as well as the turn signals.
To replace, locate the brake light switch at the top of the brake pedal (on the mounting bracket). Unplug the connector. Loosen the locking nut and remove the switch. Install the switch and adjust the height so the switch activates at the right position. Reconnect the connector and check for proper function.

Oct 18, 2009 | 2000 Chevrolet Cavalier

1 Answer

1999 GMC Suburban, K1500 4WD. Top brake light bar


third light is different circuit. saftey reason check fuses grounds wires

Oct 10, 2009 | 1999 GMC Suburban

1 Answer

2005 Canyon turn signal problem


No, but that's probably where your problem is. The wires get the hell beat out of them by stones, and then they short out and cause problems. I would take a look at it.

May 06, 2009 | 2005 GMC Canyon

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