Subscribe to get helpful automotive guides & tips, and 10% off on your first order! The only thing that works is the third brake light. i had to replace my brake light switch cause when i stepped on the brakes the they would work till i put more pressure on the peddle then they would go out.now i have no brake lites.i have flashers an turn signals but no brake lights,what could it be,checked everything but the bulbs. Please note that tail lights can work even if the brake lights are burned out. Turn signal and runninglights and emergency flashers all work. Check along the run for rotted, broken or degraded wire. Yes, a Chevy truck typically has a fuse for the brake lights. Look at the wires, because if it is not switch and not a bulb-fault, then as TBAS says it is probably wires, pinched or broken, from tail to switch to fusebox. It also takes a considerable amount of skill to open up and look at the circuit board and be able to tell which fuse is broken. When you press the brakes this switch is activated and the brake lights turn on. I recommend General Motors. Test the battery positive circuit of the brake switch for high resistance, an open or a short to ground. Solution: If youre struggling with the wiring of the emergency flashers, youll have to obviously swap these out and get new wiring. When on cruise and wipers dont wor 2 Answers. The brake lights of your truck perform an important function. I've got 12V at the fuse. Open tailgate, there's two (rusted) Phillips screws into the taillight lens. everettejohn420, I had the same problem with my stepside cleaned the connections at the light and they went to working, Nikolai If I push on the back side of the switch an activate it manually with my hand the brake lights work. I put in new brake light switch and still no brake lights. 1. White vinegar or baking soda can remove the rust. Install the new switch, ensuring it aligns correctly with the pedal arm. The STOP fuse was blowing - sometimes after the brake was activated, and sometimes as soon as plugging in a new fuse. If you cannot identify it, take help from the owners manual. Jim, I believe that when your truck is "on" your running lights are on. Check the wiring harness and connections for any signs of damage or corrosion. I tried checking the fuse under the hood and on side of the door. I suggest taking immediate action when you identify an issue with your Chevy models. However, such a thing is very rare and hardly found in popular vehicles. 2023 Engine Auditor. Was just helping my Father-in-law work on his 92 C1500. Then the switch automatically closes to turn on the brake lights. Troubleshooting 2012 Dodge Ram Trailer Brake Controller Problems. I think it shorted the circuitry inside. Also, like Jcat says, there should be a connector under the rear of the truck where you can check for voltage for the brake lights. I'm going to back at it in the morning. Bernard Benson, check the brake switch on the brake pedal, Oct 16, 2015 by The Chevy truck relay for brake lights is also located in the fuse box. After changing pedal switch and tracing all wires making sure of no bad wires or loose grounds still no break lights,accidentally found out the problem was MY BULBS WERE NOT MAKING SOLID CONNECTION INSIDE THE SOCKET cleaned all the bulb receiving sockets with a light solvent and used a straight pin to slightly pry my bulb leads out just a very little. It should be labeled brake light relay or have a location diagram. Customer: I have a 1998 Chevy Truck 1500, and the brake lights do not work. However, try to analyze the cause for the wear and tear. If you are unsure of the wire color associated with brake light function, you can access wiring diagrams online, but be warned, chev/gm have been known to change color codes from time to time. Fortunately, this problem is often quite easy . 2017 chevy silverado third brake lights; See what's going on in the bed of your truck. Over the past few months my cruise control has worked and not worked for no apparent reason. You can't go wrong with the 3157 red brake light bulb with its error and interference-free bulb technology. We are interested to see what it is. The one in the dash says "VEH STOP" and the one under the hood says "TRL PARK" (the new one hasnt blown) ok, Thinking I had the problem fixed ! A new fuse costs too little to be sold singly. Are your truck brake lights not working? Before clipping any wires, keep in mind that most older model year trucks have the same bulb filament used for both the brake function and the turn indicator function. Your email address will not be published. The following video contains detailed steps on how to diagnose your truck brake lights not working correctly. Notes: Bad Relay Also Can Be The Culprit For The license plate lights problem. Turn-Signal Switch . You may find it repaired, but it is better to replace the assembly. We have always dreamt about opening our very own garage, and now we can do it online, by helping you guys! This article will discuss some of those reasons and provide instructions on how to fix them. Follow the wiring for the applicable to your specific series truck. Ive replaced fuse, checked bulbs, replaced brake light switch, checked wiring under dash and along frame rail with no results! Been reading about all your various symptoms. You can replace the bulbs with. They can provide you with the correct replacement. Easy fix! So you could have a blown relay i would start there. Except the brake lights only work when key is off. Locate the BPPS, which is usually mounted on the brake pedal bracket under the dashboard. {{currentVehicle.year}} {{currentVehicle.make}} {{currentVehicle.model}} {{currentVehicle.submodel}} {{currentVehicle.engine}} {{currentVehicle.trim}}. The tail-backup-turn signal lights all work. What is really the problem? We strongly recommend that you refer to a visual demonstration before you attempt to do this on your own. Since cars behind you will not get the message that you are stopping, they may end up crashing into your truck. update: my trucks turn signals and brakelights were working when the headlights were off. @chevy88burban, Have you checked bulbs? I did check the switch earlier. At the taillights how many wires are on plug that goes into taillights? Sealight 3157 Brake Light Bulb This bulb is loved by many of our customers for its ultrabright light, long life, and 360-degree output. Brake lights ensure safety on the road; if they have problems, you must eliminate the issue before driving. So if things get just too wierd - ck your grounds! Why Are My Chevy Truck Brake Lights Not Working? Usually, it is easier to clean the socket and check its functionality. Also my cruise control doesn't work anymore and I believe it has to be connected to the brake light issue. Replaced fuse and switch and circuit boards and not luck. Replacing the faulty switch is the recommended solution. Thursday, February 25th, 2021 AT 5:48 PM The Real Truth! Shop online now to order today. @trueblueauto. Remember when we all started learning the basics off engines ,first things first ,clean and wash the $@$* it has all over it -a cleaner and better ,easier engine rebuilding it back to life again --start at the basics --and then go to your pinched ,cut,melted grounds or white lead hot wires, etc.. ect.. ect.. --My $@$*!& two cents worth -good luck to all --dielectric cleaner on sale near y'all - all lights are present and accounted for . A Sincere Salute with Prayers to the family's and all our Fallen and Living Brothers in Arms , A Blessed Veterans Day , Walk In Peace and in Faith, 1997 Chevy S10 V 6 cyl 5 spd -extended cab -, Richard Padgett @jessicasam. Plz help 3 days on this issue an countless articles an videos nothing????? Test wires at tail see if your getting power to taillights. If this is the case, your solution is to simply replace the bulb. While you are at it, also check the socket for any corrosion. 1 Answer Brake lights not working on 1994 Chevy Silverado The brake light on the cab works but, the ones on the fenders do not. @matthewengle, I have a 1993 Chevy k1500 I have no running lights in the rear the brake light works and the turn signal works to but no running light what could be the problem, this is not an answer it is another question, Dec 17, 2019 by Check out the diagrams (Below). What Are 2007 Chevy Silverado Brake Light Switch Problems? Any ideas? Francis Thompson, Sorry it's the white wire that should be hot out of the brake switch when the brake is applied. Rick Eidson, Don Dowdy 98 Tohoe no brake lights an back turn signals don't work new bulbs fuse are good please help. like others were saying its a brake switch at the top of the brake pedal. Sometimes, dirt or other contaminants get in the way and hamper the switchs performance. Flat rubbery thing with connector and 3 lumps. You will have to check on the wiring of the emergency flashers to ensure that they are intact and working properly. Browse Categories . The rear junction block is suspect for me only for the fact that I don't think it's just a dumb block, but some type of electronic assy. It doesnt matter which model of Chevy truck you have; you are in danger if it comes with faulty brake lights. If this grommet disintegrates and falls out, it could also cause the lights to stay ON constantly. To replace the brake light assembly, remove the old assembly by disconnecting any wiring connections and removing any screws or clips holding it in place. There is a switch. Turn on your Chevy truck and look for which light is not working. The most common reason why your tail lights are not working but brake lights are is due to a bad or wrong type of light bulb installed. Web mvi inc is pleased to announce our newest member to the mvi gm camera lineup. Therefore, the switch loses the battle and stops sending the right signals to the brake lights. The bulbs, fuses, and wires all seemed fine. If you need to solve the problem of your malfunctioning brake lights, read on to find out how to diagnose and fix them. A burnt-out bulb is, understandably, the most common reason behind a faulty brake light. May 10, 2020. lugmastro said: Just bought a 2020 GMC 2500hd AT4, and am having an issue with trailer lights not working. If you are wondering, How can I check my brake lights by myself, then you are at the right place. Faults in any of these fundamental parts can lead to your truck brake lights not working. It is no secret that LED brake light bulbs last relatively longer than bulbs. Once the cover is removed, look at the bulb for damage. Special Concerns: Test the brake lights to ensure they are functioning correctly. Formally called the Chevrolet C/K, C/K is a series of trucks manufactured by General Motors and marketed under the Chevrolet and GMC brands. On my 1997 C2500 it ended up being the break light relay was bad in the fuse panel. Seems like you have some broken wires along the frame wing should go up driverside frame rail. Your life is really in danger if it happens especially when driving on the road. The electricity going to the brake lights is cut; the only part affected is the fuse. Use 1/4 nutdriver to remove 2 screws in rubbery thing. So, off to the store to get a flasher. Jessica If All The Lights Are Dead. Underneath the dashboard there is a switch that the brake pedal presses into. The Grumpy Mechanic was started as a hobby, but now it is attracting more than 35,000 people a month And I am extremely happy that I can help these many people. Solution: This issue takes the longest to diagnose since there is quite a bit of ambiguity over what component is to blame. it will most likely be beside your brake fluid assembly, in a cluster, entering the firewall. I recently bought an 05 silverado 4x4. Suppose your vehicle's taillights are working fine, but the brake lights don't come on when you press the brakes. Some bulb-faults can blow a fuse. @cornbread1972 to many lights that are not directly connected that are not working. A lot of people overlook this, but it could be as simple of an explanation just like your bedroom lightbulb its worn out and or the fuse and short-circuited. It is also a parasitic drain on the battery, besides conveying the wrong signal to other drivers. The Owner's Manual may have clues. Turn off your Chevy truck and look for the fuse box under the dashboard or in the engine compartment. I have a 1994 GMC Sierra C1500 2WD with 4.3l w/automatic. You must have JavaScript enabled in your browser to utilize the functionality of this website. Jun 14, 2015 by On my 01gm3500,bulbs are good, fuse js good. The brake lights are an indispensable part of the vehicle. The high mount 3rd stop lamp works but the lower ones do not. There appears to be a junction for the fuse circuit at the underhood fuse box. Brake light is not working Inspection $94.99 - $114.99 Get a Quote Or For Any Other Auto Repairs Get a Quote Mia Bevacqua Automotive Mechanic 16 years of experience Since the problem is only on one side, you can rule out the fuse and other parts of the circuit that are shared by both bulbs. I have looked over the rear wiring and nothing seems out of place. The running lights and turning lights work. I tried checking the fuse under the hood and on side of the door. I got a boneyard replacement and wired it in. Does Diesel Fuel Go Bad? @randygallinger, I guess I'm luckier than mostgot more than one Chevy..I have a c3500 with brake light issuesI tried the lights on another vehicle and they are finenew brake switchfuses are fine.gotta be a ground wirechanging the brake switch is a pain when I had to drop the steering wheelfigure I might as well change the lights on the cabwas shocked when I found no bulbs in it to start. Thursday, February 25th, 2021 AT 5:49 PM The brake lights illuminate only when you press the brake pedal. White wire off the brake switch and also with the cluster of wires front front to back is the brake wire that turns on the brake lights i just figured it out on my 92 chevy k1500 because i have the same issue and i need a inspection sticker. Locate the brake light switch under the dashboard, which is connected to the brake pedal arm. Check with a multimeter if you get power to the individual cables. I put in a new switch and all was well for 3 months. After all, the light bulb goes through a lot in its lifetime. Most people have switched to LED bulbs that last longer and provide better illumination. You can get around thirty to forty pieces for 2 USD. Search Fixya. I'm Dustin Hall licensed automotive engineer and passionate about the automotive (Car, Truck, RV, Jeep). Automotive Alerming Tips: Always test the new brake light assembly to ensure it is working correctly. work except brake lites when I press the brakes, why? Silverado & Fullsize Pick-ups - 2008 Silverado cruise control is not working - I have a 2008 Silverado LT, 2WD, 5.3L. You have done your job. Ive checked all of my fuses and cant find any bad ones and I recently replaced my brake light switch. If the bulbs are the problem, replace them with new ones. You can do the rest of the task by hand. Aug 8, 2015 by What number is the fuse? I have a 98 suburban all my lights work but the brake lights I've checked the fuse and it's good changed the brake light switch so its good but still nothing with my brake lights its getting irritating not finding the problem, Jan 15, 2016 by My third brake light works though) I replaced the bulbs in the tail light assembly. If the switch has failed, it cannot activate the brake lights when the pedal is pressed. Solder and shrink tube the new wire to these pigtails and give it a test. That circuit comes from the stop fuse. I checked every fuse in both boxes and all four bulbs and they all appear fine. @ralphbeesley. The clear case around the flasher had broken and the copper was resting on some other ground point. catherineskeen12308. There are usually two or three fuses in the brake light system. I found the bad ground on the rear frame rail where the topper installer decided to terminate it. 3. Even online stores sell replacements nowadays. It can also be caused by a blown fuse, a bad brake light switch, or issues with the wiring. A burnt fuse is likely the result of some other fault in the circuit. Tail lights are typically always illuminated when the vehicles lights are on. If it was, the third light wouldnt be working! Make sure the pigtails/receptacles are receiving power when the brakes are applied. all my other lights work but my brake lights do not, 1992 GMC CK3500 7.4 454. brake light dont work, all other's. Check the video under replacing the light bulb for detailed steps. Reaching into the small space may require some gymnastics on your part unless you are a small person. 1 relay is on the back of the fuse panel, the other is next brake pedal on that panel to the left of the brake pedal. Changed all bulbs (were ONLY 25 yrs old) -- Ck'd bulb sockets (all ok) Ck'd fuses and pedal switch - both ok. Charted all progressive actions. This document has all the information about your car. Chris Carter, Ed Helmrich If you finally deduce that the faulty wiring is responsible for the defective brake lights, it is best to consult an experienced mechanic. @bryanmcnally. As a driver, the safety of your passengers as well as yours is your primary concern. Its in left of instrument panel fuse block on lower left side of dash. I have been fighting a taillight issue for 2 days. Not only do they help other drivers know when you are slowing down or stopping, but they also help prevent rear-end collisions. The best option is to take the original bulb to the shop. I was messing with my trailer lights and replaced a fuse and it seemed to fix my trailer issue. But you need to start by checking the wires under the dash. James Dean In my case, the brake lights didn't work but the turn signals did, so that told me the wiring to the bulbs was OK and the wiring running in the frame was OK and the bulb contacts were OK. Mine worked fine until I changed the booster. To fix the brake lights issue on Chevy trucks, check for burnt bulbs, a blown fuse, a bad relay, a brake pedal position sensor, and a defective brake light assembly. @chucklaunius. Any solutions? Solution: Whats happening is that the turn-signal switch which has gone bad is now affecting the brake light switch even though it technically shouldnt be.