Question about 2003 Chevrolet Silverado 2500HD

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Brake lights 2003 2500HD Duramax..main brake lights are not working..third brake light works properly..all flashers, bulbs, sockets, wiring, are all normal...only those two lights do not work when pedal is pressed

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  • Chevrolet Master
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If you have an aftermarket trailer towing plug on it, that's where i would look first. Something is shorting out in there, or you have a broken wire or ground somewhere. Proabably near the back where gravel stones can hit.

Posted on Oct 07, 2009

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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

Side lights,third brake light and dash lights come on when I press brake but no bottom brake lights. Then when I switch the lights on the side lights and third brake light stay on and when I press the...


sounds like a bulb is not seated properly in a socket in the back..check all the lights and groundwires too..starting with all the 4way flashers..then running lights.

Jan 25, 2013 | Cars & Trucks

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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
Doug

Apr 10, 2012 | 2005 GMC Yukon Denali

1 Answer

Third brake light works turn signals and hasard


Check the bulbs everything runs as you said the 3rd brake light works correctly so should they all. Otherwise it may be the socket could be corroded check to ensure this is not your issue.

Nov 07, 2009 | 2000 Chevrolet Cavalier

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My main brake lights quit working..third brake light works properly


IF upper works then the bottom ones have burned out bulbs, or socket issues, or wiring issues. Most probable cause is blown bulbs.

Oct 07, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

I've checked all the components, relay, pedal switch, fuse, bulbs and I still don't have brake lights. The third brake light works but no brake lights, every thing else works, tail lights, flashers and...


The mechanic needs to check again the connection of the brake light to the fuse and the wires . then try checking terminal sockets of the brake light that can also be the problem.if still not working try to look at the sensor .

Aug 11, 2009 | 2003 Ford E150

1 Answer

2006 Chev Impala turn signals not working on rear lights, turn signal flashing at a faster rate than normal, No brake lights when pushing on brakes.


Two issues here, you will need to replace the flasher. this will correct the erratic turn signals.

Concerning the brake light. Make sure the bulbs are in working condition and, check the wiring harness for faults as well. if the bulbs and wires arr OK, replace the brake light switch.

You can test for proper current by pulling the brake light bulbs out the socket and, use the copper prongs inside the brake light socket for testing. use a volt meter and, hit the brake pedal and, see if the meter registers a current. if not, replace the wiring harness.

Jun 04, 2009 | 2006 Chevrolet Impala

1 Answer

Left rear turn signal and brake light dont work


You have a broken wire to the turn/brake light portion of the light as they use the same wire. Or where the plug goes into the light assy could be bad. Torsion mount lights are horrible and you should think about replacing with a universal light that you can wire direct.

Feb 17, 2009 | 1997 Jeep Wrangler

1 Answer

Brake Light trouble!


the tail light lenses are most likley the problem. the sockets will also have to be replaced . try moving the backup light sockets to the brake light sockets . you should be able to get one working. this is for test purpos. at least you will know if it is the problem. good luck

Oct 24, 2008 | 1999 Plymouth Grand Voyager

1 Answer

Left rear brake light will not work. Bulb is O.K. Flashers work but steeping on the brake pedal doesn't make left rear light work.


Hi,

A couple of possibilities:
  • corroded bulb socket - most brake lights are integrated with the rear park lights. The bulb socket would have 2 contacts, try checking if they are clean and reaches the mate in the end of the bulb;
  • wrong installation - the bayonet socket of most park/brake lights combo are offset, there is a right and wrong way if installing it into the bulb socket;
  • loose wire - it would be required to trace the left brake wire to where it joins with that of the right;
  • loose ground - same as above or a workaround is to wire an additional ground wire from the housing of the bulb socket to any screw that is connected to the body ground.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Jul 29, 2008 | Chrysler Concorde Cars & Trucks

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