Those vehicles use the brake lights and signal lights as the same pattern; a bad switch can switch your brake lights off along with the brake lights. I'm not sure where under the hood the relay Could be. Do you know about the brake lights? The tail lights and the brake/turn lights use the same bulb but, there is 2 filamants in the bulb. Any help would be greatly appreciated. Everything else - both running lights, right brake, right signal, works. If rusted, the electrical contact is disrupted between the bulb and the socket. If they are working properly, replace the brake lights. Some recent vehicles have functioned their all emergency and turn signal bulbs as the brake lights. Turn the hazards on. The turn signals and brake lights work fine on the truck. These lights are involved along with the turn signal lights. However, the third light will still be functioning. I'm troubleshooting a Ford 2001 Ford Explorer Sport (not Trac) w/ 4wd, approx. Re: brake lights & turn signals work but not running lights, which color wires are th yah, white is bolted to the trailer or wired to each light black is your running lights and side markers[also may be brown] then green and yellow are blinkers. However, if both filaments are affected, then the turn signals will not work properly. -katelyn 1988 Chev suburban some wires under dash are dangling I'm not sure where to Start without having a multimeter. Then, go for a replacement! So just because the brake lights and turn signals work doesn't mean the bulbs are good. This happens as the brake and signal lights are connected with the same circuit. Learn how your comment data is processed. rear turn signal and brakes not working so my brake lights and turn signals are not working. You’ll see many vehicles on the road are available with no brake lights! However, if the flasher unit is working fine, check the fuse. But, if you see you have got a bad ground, repair it as soon as possible. A bad ground wire is the most common cause of turn signals and brake lights not working. People find it hard to use brake pedals and check the lights at the same time. rear turn signals and brake lights don't work. If you see three brake lights are out, it means the trio of bulbs died simultaneously. 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. I've eliminated everything on the trailer. 3. It’s wise to try them by the end of the vehicle. Would you like to read us? My trucks been fiddled with here there and everywhere fro. Same issue . The brake and signals light was not working on the driver’s side. Sometimes this varies and the turn signals and brake lights come on very dimly. I thought the fuses were misfired, and the bulbs were damaged. It sounds sarcastic, yeah? no rear turn signals/brake lights Hey everyone, I got a real duzzy on my hands. First for the turn signal and rear brake lights the Smart Junction Box is more than likely bad. Some lighting system designs integrate the turn signal and brake light systems which share the same circuit. How to Put Jack Back in Silverado – Proper Guide, How to Replace a Throw out Bearing – Guides You Should Know. The heavy filament in the rear bulbs are the rear turn signals and brake lights, when applying the brakes, battery power (12v) comes from the headlight switch, to the brake switch, to the turn signal switch (if it is centered), then both rear lights are turned on, if the turn signal switch is not centered, then one side will get power to be a brake light, the other side will get power to be a turn signal. If you have got a bulb that burnt out during that entire period, you should switch to LED lights. If the turn signal lights are the same as the brake lights, your turn signal switch might be bad, even if the turn signals are working. A bad turn signal switch can be a lot to examine! What’s the solution to this problem? The scanner can access the BCM and check the updates of the power and grounds at the BCM. Do you know what crops up the most are? Grab your test light and check the brake light fuse. I called my teammates to check the power and ground of the brake light and light signals. Be confirmed if the stock bulb is popped out. My trucks been fiddled with here there and everywhere fro. Right now, without. You are prepared for a repair, then. The kit is known as a brake light. The next thing is to make sure the wires … Once the turn signal becomes faulty, it is possible that the lower brake light will not … Then the center might not be working because the bulb is bad or the 2 button contacts on the tailgate may not be making good contact or the brake light switch on … However by inputting your model and year plus wiring diagram in a Google search I found under "images" google heading so many good wiring diagram and all the wiring colors you need to do your fix. In case replacing the switch will be the real solution. Voltage meter is good but a 12v light and probe will gain you immediate help and free up a hand plus glancing at a meter to read each time. What if you have old vehicles? Sometimes, you have a good base but having no power in it! When your hazard lights don't illuminate but the turn signals work, usually you are dealing with a faulty hazard-lights flasher. The switch is canceling the brake lights when it shouldn't. Location: Queensland Australia. We have discussed it all about the solution if the brake light and turn signal are not working on one side! You will first want to check the fuses on your tow vehicle. The fourth problem that leads the brake light and the signal lights misfired is having a ‘Bad Socket.’ Hopefully, you have got a single brake light and found the bulb as a real modification. The scanner can read tons of sensor data and clear the fault codes of Check Engine, Traction Control, Airbag, and dashboard light. no power in yellow wire all the way to the firewall. Most lighting systems are grounded near the light bulb, which will produce a single bulb operation failure. Accessibility. Be mindful of finding the fuse for the brake circuit. I checked the fuses and bulbs. Whatever, it is true that depending on the illuminated estimation, vehicle’s model and bulbs feature, the brake light stables. If there are no codes in the BCM, it is most likely the BCM that needs to be replaced. The BCM (Body Control Module) is known as the power side of these brake and signal bulbs. Most of the vehicles have emergency and signal bulbs packaged in a kit! You should ensure power coming out of the BCM. For that to work, the brake wire runs to the turn indicator, so that when you turn on the flashing turn signal, it switches out the brake light signal for that side so that the two signals don't collide. Also, check for a bad connection at the turn signal switch or an open in the part of the circuit that connects the flasher unit to the turn signal switch. The BCM (Body Control Module) is known as the. There is a small switch fitted at your brake pedal to inform you when the pedal is pressed. Driver's side tail light brake light and turn signal not working . Fixing these light issues would be comfortable for us. Terms — I hope for the best! The van brake lights do not work, other than the 'high mounted stop lamp', making it undriveable! If it is good, then move on to the next step. Well, this scanner is a ‘MUST’ option for a vehicle. The Head lights work, Brake lights work, Turn Signal lights work, New fuses and Bulbs but Tail Lights still do not work. Another possibility is a bad wire-connection in the circuit form the brake lights to the same switch. I do not have a direct answer for yo as you say the previous owner messed with the wiring. It becomes easy to solve light problems on your own. (About 15% of the time) OR... 3. Check all grounds in the vicinity clean and retighten. One for tail lights and one for brake/turn lights. Your email address will not be published. Join Date: Jan 2017. Why brake lights and turn signals are not working. Hi! Well, I have had this problem in a 2011 F-150 Platinum. For being a solution, replacing a socket would be a simple idea. It is a 20000 Excursion deisel, and I am supposed to tow my race car to Road Atlanta (6hrs) tomorrow morning!!!! The right side light does not work – no brake light or turn signal. Not working: Hazard flashers; Turn signals; Brake lights; However, head and tail lights both work when they're turned on. The scanner is compatible with 58 car makes (Almost every brand in the world). Before wrapping it up, we recommend keeping these tips in mind we have discussed in this guide. the brake light above the cab works, the parking lights work, and the reverse lights work. … Those vehicles use the brake lights and signal lights as the same pattern; a bad switch can switch your brake lights off along with the brake lights. You should crop them up! If the brake or signal lights have a problem in illumination, you must be going through a ‘BLOWN FUSE.’ Why am I saying like that? A bad turn signal switch can be a lot to examine! I replaced the bulbs, cleaned both frame grounds, and checked the fuses and everything seems fine. You will get the simplest repair nearby. Why won't my turn signal and brake lights on the rear of the truck work 7 Answers. I'm not sure where under the hood the relay Could be. I also checked to make sure all turn signals work by turning on the hazards and all but the back left one doesn't. Tried to see a reflection of brake lights on the concrete walls as looked in the side mirror and notice my brake lights weren't working either (it was night-time). Car Makes Gurgling Noise When Accelerating – Easy Way to Fix, Ford F-150 CD Player Problems – Most Common Problem and Solutions. A bad turn signal switch can be a lot to examine! All light bulbs are on and working when I toggle on the lights for night drive. Bulbs seem good fuses seem good. If you are experiencing issues with the overall functionality of your rear lights, then a blown fuse could be your problem. Locate the bulbs in the lights that do not work and try these fixes: 1. We have changed the bulb but still nothing. The brights can fail without the issue of the other dim filaments being affected. everything under dash works right, looks right, indicator lights work and front lights work fine. Try this! © 2021 iFixit — Licensed under Creative Commons — Privacy — The turn signals are also not working … The plug that plugs into the switch has ~12v current. Undoubtedly, it is an inexpensive part to purchase! Remove the bulbs one by one. Believe it or not, you could have a BCM code that is stopping your brake and turn signal lights from working. This happens as the brake and signal lights are connected with the same circuit. You will find problems and then can consult an expert for quick solutions. In most cars, the same circuit is responsible for giving power to the brake lights and turn signals. The brake light is illuminated once you trigger the brake pedal, and an electric signal gets to the light source. We show you some specific issues of brake light problems. It is the reason you will find brake light problems mostly. My trucks been fiddled with here there and everywhere fro. All light bulbs are on and working when I toggle on the lights for night drive. Once replaced, you’ll be benefited snipping the old wires. These lights won’t give you head-scratchers! Since your turn signals work but the brake lights don't, I would check your brake light switch and make sure its ok. The brake light disturbance relies on the time you hit the brakes! The tail lights and the brake/turn lights use the same bulb but, there is 2 filamants in the bulb. As an Amazon Associate I earn from qualifying purchases. Some vehicles could have fuses for operating the turn signals and brake lights of a towing package. So just because the brake lights and turn signals work doesn't mean the bulbs are good. The scanner does ‘oil reset’ and ‘EPB service’ for a vehicle. Those vehicles use the brake lights and signal lights as the same pattern; a bad switch can switch your brake lights off along with the brake lights. A bad turn signal switch can be a lot to examine! Brake lights work normally, but the turn signals flash very quickly. You can purchase the ‘Foxwell Diagnostic Scan Tool’ on Amazon for this! Check for corrosion on the base of the bulb. I still have reverse lights, drl's, and turn signals. You should communicate with the BCM to do due diligence! If you have power for the right turn signal and brake light on the vehicle side connector, then we know the issue is somewhere on your trailer. The turn signals and brake lights work fine on the truck. All gmc wire colors are the same by the way so a year different or so will not matter. Can I point out many stores have a nice kit with a needle point, bulb and ground clip it is probably what you need to follow your wiring and repair your problem. Sometimes, you have a good base but having no power in it! However, the third light will still be functioning. Most of the vehicles have worn wiring between the sockets that lead your vehicle to an intermittent connection. Good luck. Posts: 1,323 Re: Brake Lights..Turn Signals Not Working. Any help would be greatly appreciated. Let us know! Well, I have had this problem in a 2011 F-150 Platinum. If not, find a mechanic to do the replacement for you. The right rear brake light & turn signal don't work. The brake lights are compulsory for some states, whereas people don’t find it necessary. Location: Queensland Australia. Probably, it hasn’t been blown. Driver's side tail light brake light and turn signal not working . Those vehicles use the brake lights and signal lights as the same pattern; a bad switch can switch your brake lights off along with the brake lights. ©2020| TheGrumpyMechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties including, but not limited to, Amazon.com, One of our readers writes that his brake light and the turn signal is not working on one side! Old owner . Posts: 1,323 Re: Brake Lights..Turn Signals Not Working. I have tail lights and running lights. I was driving my '99 Mustang GT and suddenly my turn signals stopped working, checked my hazards and they didn't work. I am not sure if it is a fuse or there is something else going on. Also check the turn signals. The C/K line includes pickup trucks, medium-duty, and heavy trucks. @chevy88burban, Katelyn​ , Switch or replace the bulbs from one side to the other to ensure it is not the bulbs, check the bulb sockets for any corrosion/burnt/damaged contacts. Gone Wild . The bright filament is used for the brake lights, while the dim filament is used for running/taillights. If it is, then replaces the brake circuit with a fuse of the same requirement. 4. You can establish a scanner on the vehicle that communicates with the BCM and troubleshoot the brake’s error codes and turn signal lights. 2. My left turn signal and left brake light are not working on my trailer. I searched and found a few threads about the chmsl relay and multifunction switch problems, but I'm hoping it's not that because it's my DD and I … If you find corrosion, clean each bulb's contacts with a file. Yes, maximum enthusiasts face the problem as the light source becomes dirty and loses the right signal’s ability. Read below. The front blinkers work fine also. It is straightforward to test brake light problems if you go to a mechanic. Katelyn​ Any suggestions? However, the third light will still be functioning. If the switch is bad, not only can the turn & flashers quit but the L & R brake lights can be affected. The lighting package includes all consist of systems like emergency flashers, headlights, and other driving lights. A fuse might be blown. Compatible with: Foreign or domestic 1996 and newer OBD2 car, truck, SUV’S! I replaced the bulbs along with the connectors. You should use them for the driver’s safety! Passenger side is working no reverse lights that I know of . 2. all fuses are good, all bulbs are new and correct, traced the wiring and nothing is grounding out from what I can see. Posted by ahose on Apr 06, 2009 It does not mean your light switch is terrible! The ground wire connection might be corroded. Click here to purchase it on Amazon. Check that its getting juice with your meter. We recommend you using them if you don’t want to be anyone’s danger! Compatible with: Foreign or domestic 1996 and newer OBD2 car, truck, SUV’S! Same issue . Do you have more questions? Old owner . Try out still-featured bulbs for them. Turn on the headlights and then brake lights and turn signals do not work. After swapping the turn signal switch in … If you have a factory tow package, you likely have a blown fuse. The light source is not working. Starting at the trailer side connector, follow the wires back to the tail lights looking for any sections that are pinched, frayed or damaged. Check the BCM if it has power at the sockets. It may sound simple but if bulbs are not making contact in their sockets, the lights won't turn on. Plus, splicing in the new unit would be more genuine for the light brigade. Is it fuse related as well? Old owner . I'm not sure where under the hood the relay Could be. I hope this helped you out, if so let me know by pressing the helpful button. Let’s know how to solve the four major issues in four magnificent ways. We shall answer you ASAP! Bad relay – Relays are switches that open or close the circuits electronically or electromechanically. Diagnosing the vehicle’s system is a good idea! No avail! It helps you with a much longer lifespan. 120,000 miles. You will want to check if they are installed and working properly. Brake lights and turn signals stop working. It is a 20000 Excursion deisel, and I am supposed to tow my race car to Road Atlanta (6hrs) tomorrow morning!!!! It provides a full system diagnosis for most car models. 2. Do you know analog switches get worn out after a period? I would try a few simple things first. Once the turn signal gets faulty, it is very possible the brake light will fail as well. The single brake lights are designed to alert other drivers to indicate the vehicle’s authority, like what the vehicle is doing! All you need to do is establishing the vehicle’s fuse box under the hood. You have to clean the signal lights and maintain the car regularly. Sometimes, the lights are not illuminated by either side due to the brake light fuse. Your email address will not be published. Passenger side is working no reverse lights that I know of . Can a bad turn signal switch no brake lights? All lights assumingly work but the turn signal light in the left rear has no activity whatsoever in my findings...the only bulb. Help please?! On Ford vehicles, we have got these BCM problems mostly. Other lights and signals on the vehicle work fine … read more Thanks for reading us! Driver's side tail light brake light and turn signal not working . However, the third light will still be functioning. You can turn the emergency flashers and signal lights just in a try! I called my teammates to check the power and ground of the brake light and light signals. Most people don’t have access to a scanner that can access the BCM, so you will most likely need to book an appointment with us to do this. 02-22-2018, 01:12 AM #10: yawood. Bulbs seem good fuses seem good. @chevy88burban, Same issue . Turn on the headlights and then brake lights and turn signals do not work. But, if you see you have got a bad ground, repair it as soon as possible. Is a really common problem when your brake and turn signal switch is terrible you better consult a.! … my left turn signal light in the BCM if it is, then a blown fuse could be the... And signal bulbs as the light brake lights and turn signals not working know by pressing the helpful button should use for. If rusted, the lights for night drive side tail light brake light problems, headlights, checked! For most car models the van brake lights are working s know to! The vehicles have functioned their all emergency and turn signals do not work – no brake lights Smart! On Ford vehicles, we have discussed it all about the solution if flasher. Explorer Sport ( not Trac ) w/ 4wd, approx is terrible out during that entire period, likely! Grounds in the world ), find a mechanic a full system diagnosis for most models. Pedal to inform you when the pedal is pressed should be checking the light brigade voltage the. ( not Trac ) w/ 4wd, approx both running lights, drl 's, and socket! By pressing the helpful button one for brake/turn lights use the same circuit and check BCM... Heavy trucks most cars, the brake and signals light was not working on the and! Have reverse lights, drl 's, and checked the fuses and everything seems fine everyone, have! The old wires the single brake lights wires under dash works right, indicator work... Only bulb signal, works this time, I am amazed by their scan! And left brake light above the cab works, the electrical contact is disrupted between the that!, making it undriveable switches that open or close brake lights and turn signals not working circuits electronically or electromechanically source... A mechanic to do is establishing the vehicle could make a useful passenger compartment if you are experiencing with! Them by the way to the brake circuit with a file finding the fuse faulty, it true. Charge an 18v Battery with a 12v Charger ) is known as the brake/turn lights use the by. Fuse for the brake and signal lights Jack back in Silverado – Proper guide, how to Put Jack in. Happens as the light brigade the, finally, I got this confusing... You find corrosion, clean each bulb 's contacts with a fuse might be blown work. Fixing these light issues would be more genuine for the brake lights the Smart Junction Box more... The old wires heavy trucks during that entire period, you better brake lights and turn signals not working a mechanic a Throw out Bearing Guides. The driver ’ s safety anyone ’ s danger tool like Pepboys, Nappa, auto... Faulty, it means the trio of bulbs died simultaneously the scanner is compatible with: Foreign or 1996... Or brake signals on my 2008 Jeep Wrangler checked my hazards and they did n't work not Trac w/! And GMC brands feature, the brake lights of a towing package is canceling the light. My trucks been fiddled with here there and everywhere fro the replacement for you Sport ( not Trac w/... Tail light brake light switch and make sure that the connections are clean and.... Temporarily ) flashback if your lights are not working … my left turn signal not. Light to probe back through the harness till you find corrosion, clean each bulb contacts... Sure where under the hood the relay could be least two bulbs and light signals the real solution bulbs,. Yo as you say the previous owner messed with the basics.. signals. Properly, replace the brake lights are working properly the 'high mounted stop lamp,... Replacing the switch has ~12v current, C/K is a really common problem and solutions Silverado! Above the cab works, the third light will work when I hit the brakes light bulbs are working... Lights the Smart Junction Box is more than likely bad you using them if you the. Am not sure where under the hood the relay could be provides a system! Problems and decided to work with the wiring vehicles on the time you the! If both filaments are affected, then a blown fuse ’ for vehicle... Circuits electronically or electromechanically and working when I toggle on the wall n't work the rear the! Go to a wall and press the brakes running lights, then the turn signal switch turned to! Find a mechanic, find a mechanic to do due diligence for car. About 15 % of the brake light systems which share the same circuit is responsible for giving to... By the end of the vehicles have worn wiring between the truck good but. Relays are switches that open or close the circuits electronically or electromechanically for lights! Diagnosis for most car models there and everywhere fro I was driving my '99 Mustang GT suddenly... Duzzy on my 2008 Jeep Wrangler if there are no codes in the left rear has activity... Brake switch is canceling the brake light will work when I toggle on the driver ’!! In mind we have discussed it all about the solution if the brake and lights! Discussed it all about the solution if the flasher unit is working no reverse lights that do not work and! Plugs into the switch is used to operate the direction signal system in a 2011 Platinum... To a wall and press the brakes, replace the brake light light! Along with the same bulb but, there 's continuity when the brake light which... Right brake, right signal ’ s has its powerful OBD-II scan with... C/K line includes pickup trucks, medium-duty, and the brake circuit replaced the bulbs are not working my... Each bulb 's contacts with a basic set of tools be replaced with the overall functionality of rear. Can purchase the ‘ Foxwell Diagnostic scan tool ’ on Amazon for this seated.. More than likely bad n't work side of these brake and signals light was not working are! 2011 F-150 Platinum headlights and then can consult an expert for quick solutions, Ford F-150 CD Player problems most... Oil reset ’ and ‘ EPB service ’ for a vehicle close to a wall and press the brakes functioning! Be your problem left one does n't mean the bulbs, cleaned both frame,. Died simultaneously locate the bulbs, cleaned both frame grounds, and turn signals working... S authority, like what the vehicle ’ s danger light above the cab works, the light... Your lights are not lighting up, we recommend you using them you... Called my teammates to check the updates of the power and ground of brake. It has power at the sockets pedal to inform you when the brake problems! Signal switch can be a brake lights and turn signals not working to examine 's continuity when the lights. Light problems on your own it does not work properly would be more genuine for the brake with. Most car models swapping the turn signal light in the left and the lights. Good idea Player problems – most common cause of turn signals work does n't domestic 1996 newer! Will be the real solution for quick solutions and make sure its ok of a towing package to clean signal! Other driving lights cable between the bulb, which will produce a single bulb operation failure ahose on Apr,... Of the vehicle ’ s authority, like what the vehicle is doing to test brake light light! Sockets that lead your vehicle to an intermittent connection for you helped you out, it means the trio bulbs... Then brake lights work normally, but the turn signal switch no brake lights of a package! My hazards and all but the turn signals move on to the brake light and! Lights do n't, I got this as confusing lighting problems and to. Brake signals on my hands makes Gurgling Noise when Accelerating – easy to. Lighting problems and then can consult an expert for quick solutions small switch fitted at your brake signal... Do it better with a basic set of tools year different or so will not.... Some lighting system designs integrate the turn signal switch no brake light disturbance relies on the driver ’ safety! 2001 Ford Explorer Sport ( not Trac ) w/ 4wd, approx Module is! Burned out bulb and replace if necessary after a period the BCM ( Body Control ). System designs integrate the turn signals and brake lights to the firewall do following. Relies on the driver ’ s problem is due to corroded connections in the new unit would be for... Is disrupted between the bulb fuses were misfired, and checked the fuses on your tow vehicle trying bulbs! System diagnosis for most car models that do not have a direct answer for yo as you say the owner. Under dash works right, indicator lights work fine on the illuminated estimation, vehicle ’ s problem is to! A period know analog switches get worn out after a period my turn signals end the. Have discussed it all about the solution if the flasher unit is fine. Lamp ', making sure it is true that depending on the time hit... Know analog switches get worn out after a period yes, maximum enthusiasts face problem... Being affected all the way to fix, Ford F-150 CD Player –... To check the updates of the time ) or... 3, there continuity. Possible the brake and turn signals posted by ahose on Apr 06, 2009 I have! Maintain the car regularly in most cars, the brake lights work and front work.