Question about 2003 Chevrolet Tahoe

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Third brake light went out got new light still nothing is it a fuse or bad wires

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The fuse may be labed CHMSL......Center High Mounted Stop Lamp.....are you getting power and a ground to it? I assume the other brake lights operate?

Posted on Sep 27, 2009

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Posted on Jan 02, 2017

s_pra_army
  • 37 Answers

SOURCE: Third brake light flashing when engine is off, no main brake lights

this does not sound like a fuse problem. seems like a wiring issue. You probably have wires shorted together, and/or shorts to ground somewhere.

Brake switch is a good place to start, make sure it's working fine. To find the wiring issue you will need electrical diagrams, so get yourself a repair manual for a 1998 Explorer.

Look at connectors, see if you can find components or connections where all the brake light and tail lights connect to together. Using a multi meter you should be able to pin point the issue if u follow the wiring from the battery to the lights using the diagrams and checking connectors.

Posted on May 09, 2009

  • 1 Answer

SOURCE: 94 altima brake lights won't go off draining the

check your break pedal.. I had the same problem. It wasn't the switch, it was the part of the pedal itself that presses the switch.

Posted on Jun 17, 2009

  • 1 Answer

SOURCE: 2006 Kia Sorento Brake Lights not working

Apparently this is a recall matter and will be fixed at no charge. KIA Consumer Assistance Center 1-800-333-4542. Recall notices were to go out in May/June 2009.

Posted on Jun 17, 2009

  • 1 Answer

SOURCE: No juice to the third brake light in a 93 honda accord

The right brake light sensor is located in the trunk area by the right rear taillight assembly.

Posted on Aug 26, 2009

  • 3 Answers

SOURCE: tail lights on 2006 chevy silverado don't work

I had the same problem and found out that both light bulb sockets had corroded/burned contacts. After cleaning and applying dielectric grease, they worked perfect again.

Posted on Dec 17, 2009

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99 grand marquis third brake light dosen't work


From That Light There Is Only 2 Wires , Trace Them Back To The Tail Light Connection - Most Likely A Split Wire Or Bad Connectio

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2001 ford escort zx2 third light works but nothing else power to brake switch tried to jump it an they still dont work


Did you try new bulbs? Check for loose wires on the plugs going to lights, Or a break in the wires, Bulb sockets for condensation, if none of that is the (problem) take it into a auto electric Shop to be check out,

Nov 27, 2012 | 2001 Ford Escort ZX2

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Brake lights don't work but third brake light does


I believe the flashers are on a different circute. It sounds like a bad ground.....or one of your taillight sockets is bad. I have a cavilier that had the same problem. I went to a junk yard and found some light socket s and swopped them. So far it has been working. The third light has its own ground. tail light sockets need to have a good ground, some times the ground from batt. to block, ground frome block to frame can be bad.
Think "ground"
Don't try and buy new sockets , unless they are just like the fasctory sockets. getting the entire tail light works good. Find the main tail light, the juce comes to it first, then passes to other side. Check that dide frst. work your wat over to other side, if u cant find a problem, work your way to the front and find out where the lights are grounded.
good luck
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Apr 10, 2012 | 2005 GMC Yukon Denali

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The 3rd/high brake light is not working .. replace light bulb with a new bulb. nothing happened. checked to see if fuse is good couldnt find it.. besides the fuse what could be the problem.. 2001 gmc...


Brake light switch. If I remember correctly, the third brake light works off a seperate circuit from the other brake lights so part of the switch could be bad.

Aug 23, 2011 | GMC C1500 Cars & Trucks

1 Answer

No rear brake lights, but 3rd one works. Fuses good, relays good, pedal area good, bulbs new, and new circuit board. What now


Im not sure the make ,year or model of your car but , the next thing to check as you already checked the fuses and brake light switch would be to check the wires going into the socket, the sockets go bad often so using a test light the next thing is to check the power and ground right before the socket, check the wires at the end before they enter the socket, if you have power and ground then the sockets are bad. you also know that the brake lights and the third light use diffrent power sorces, so just because the third light works doesnt mean the fuse is good for the other brake lights,good day,

Mar 29, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

2004 f150 heritage. Third brake light works but tthe two lower brake lights won't work. New bulbs. Any ideas?


check fuses in both fuse panels, then check brake light switch third brake light works off of brake switch too but diferent wire

Oct 27, 2010 | 2004 Ford F150

2 Answers

Center brake light still out after replacing bulb


It could be the Third Brake Light assembly is bad, remove the assembly and have someone step on the brake and you can check to see if you are getting current to the contacts or wires.

If no power, replace the assembly.

May 27, 2010 | 2000 Chrysler Concorde

1 Answer

My third brake light works, bottome two do not work. I put new bulbs, new sl switch,and checked all fuses, but bottom brake lights are still not working, there are a green, brown, and black wire running...


Work the 4-way flasher switch rapidly in and out several times. It sounds like the combination switch is corroded. 80% of the time you can clear it by working the 4-way switch (may have to use electronic contact cleaner sprayed into switch as well). The brake lights run through the combination switch (turn signal/wiper switch) to the rear bulbs but the third brake light is fed before the switch.

Oct 24, 2009 | 1997 Ford Crown Victoria

1 Answer

2005 grand cherokee brake lights out. changed bulbs didnt work. third brake light is working checked fuses ok .


checked all fuses even under hood? may have bad signal switch or bad brake light switch yes even if 3rd brake works.also check wiring under rear fender by bumper thats were wire harness is hope this helps.

Oct 09, 2009 | 2005 Jeep Grand Cherokee

1 Answer

Break lights went out at the same time


The brake switch is good it sends power too the three brake lights the same time . so your bulbs are both gone the same time or the sockets are bad or you have a broken wire.
get someone to hold on the brake and test with a test light in the socket, {both ground and live} then check the wires the same way
Hopes this helps you : Bruce Pike

Oct 01, 2009 | 1997 BMW 318

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