running lights not working but brake lights do

Recently noticed that my rear running lights are not working when my lights are on. What do I check first? Brake lights, T/S are on a separate circuit. My 94 ford thunderbird wont go into RND12 and now my brake lights wont come on my locking system has gone out as well as my automatic seating switches and hazzard what could the problem be? I dont know where to go from here. Check the brake light fuse in fuse box that could be blown, and also check to see if the brake light switch is bad, it should be located under the dash and the plunger of the switch should be touching the brake pedal arm. If it is, check the bulbs. I hope it is that easy. Got to the point that I was on the brake switch an determining its functionality. The running lights and turning lights work. The trailer uses a 7 pin with brakes, turn signals, stop lights, hot tab, running lights. I think the part that is throwing me off is that the turn signals work and the brake lights work so if I had a bad ground why do those still work and not the running lights?? My dash lights all work, and I can't find any blown fuses. The brake lights, turn signals, and back up lights stopped working. Just running the basic running lights, but did not do anything when the break was pressed. How do I fix this? I only find a parking light fuse in the motor fuse box. It is quite common for one filament to break, but the other to still work normally. I have checked connections in the four position block the taillights connect to and everything was tight. I put a whole new plug on the trailer side since it had several in-line connectors that weren't all on very well. I installed LED rear lights in my 2010 F150 and loved them. Officer was super nice BTW... anyway, not just the back running lights but the license plate lights, the fog lights, front flashers/DRL's. THE TURN signals and brake lights will work and so do the 4-way flashers. Somehow there isnt enough slack between the pedal and the booster rod. At the rear, only the tail light unit has a dual-element (1157) bulb and is for the normal (dim) tail (running) light and (bright) brake light. Sorry tail lights do work, brake lights do not - will check switch on brake pedal. After hooking the 7-pin connector to the truck, the brake lights and turn signal lights work fine. We use cookies to give you the best possible experience on our website. My question is , what would be the easiest way to fix? Community Answer. I checked all the fuses and none are blown. It doesn't matter if the lights are on or off. Your stock turn signal lights at 1156, clear, single-element bulbs with amber lenses. we have kinda the same thing . If I push on the back side of the switch an activate it manually with my hand the brake lights work. ### help . Where the brake light and tail light use the same bulb, the bulb contains two filaments - one for brake lights (21 Watts) and one for tail lights (5 Watts). Still doesn't work. However the running lights / marker lights and tail lights do not work. Blown fuse, broken wire, or short in your running lights circuit. if you have NO output (brake, running, turn, reverse) then the issue is not a fuse since you would have to have blown 4 or more fuses at once. I have looked over the rear wiring and nothing seems out of place. Now my lower brake lights do not work, but the fuse is good. I have left and right turn signals and brake lights only. the rzr will start with brake depressed and wont start when no brake is applied,i checked the 4 grounds behind drivers seat and the brake pressure connector and its fine,i have running lights but no brake light,started out as only one brake light would work now both dont ,just running lights work,any ideas what to do? We are on our first trip with our 2016 Bighorn 3570RS. Q: My brake lights do not work, though my running lights still work. In this case, you need to replace the bulb with one with two working filaments. The brake lights work just fine its just that when the lights are on the tail light's arent on but the front one do work. 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. Its not the bulb because the blinkers work when I hit the right/left signal switch. The running light was working when I bought the bike. The brake light also works when I hit the brakes. The fuse was blown on the turn signals, fixed that and now ONE front signal light works. running trailer lights not working, but brake running trailer lights not working, but brake lights on trailer do.. - Ford 2004 F150 question Trailer Running Lights Not Working with a 7-Way to 4-Way Adapter. Verified by connecting another vehicle where the running lights worked as expected. However, when I turn the lights on, my tail lights come on and stay on until I turn them off. So I have a 2008 BMW 128i and yesterday I noticed that one of my tail lights were not working. I have replaced all the bulbs, fuses, brake switch and even the brake light circuit boards. Thanks! now we have no tail lights we have signal and brake but no running lights. also the dash lights kept going n and off then finally jsut do not come on. I've got a 2001 WJ 4.0, The right brake light wasn't working, so I installed a new bulb, but I must have done something in the process because now all my brake lights work but I have no running lights. They should come on when I turn on the headlights on the truck, but they do not. My running lights are not working but brake lights and hazards do. I don't see any exposed wire, just got my tail lights rewired and covered really well, first thing I'm going to do is replace my two switches that turn on the headlights and marker lights. Not Helpful 7 Helpful 12. - Answered by a verified Auto Mechanic. Question. Just the two rows that function as both break and running lights. 2010 F150 My running lights and head lights work but my brake lights and turn signals do not 4 Answers. I have no idea what else could be wrong. I have a 1998 Chevy Truck 1500, and the brake lights do not work. As this is our first trip, I don't know if they ever worked. If those are okay too, see a mechanic; it might be a wiring or ground problem. you may also not have dash lights. Just from the lenght of these wires it would appear they attach to the latch mechanism in some fashion. I am trying to remember what fuse does this but it is a fuse and i think it's under your hood. That is what I mean by running lights. All other parking lights work, on back and front. Brake, tail lights not working 1 Answer. Anonymous Apr 21, 2009. Running lights not working on trailer light connector. I don't know if you remember I put those nice LED bulbs in my tail lights just in the top ones not the turn signal and now my driver side rear tail lights are not working any suggestions I've had the bulbs in for almost a month and now nothing oh by the way the little tiny bulb 2 is not working in the tail light what to do? when you say theres no tail lights, do you mean that there is no output from any light, or just the running lights ect? Everything runs fine except for the fact that the tail lights do not come on with the rest of the running lights. Headlights work, reverse lights work, brake lights work, back signal lights work, 3rd brake lights work. I did though however notice where the previous owner had spliced into the cable to add lights for a trailer hitch. so we replaced fuse, that didnt work, next was the switch, that wasnt it so we bought a extender wire harness { they were so short. } My brake lights are not working, but all of the other lights are. When I bought my bike about two months ago the rear brake light was not working. The tail lights dont work but the brake lights do and so do the turning signals. I also put and brand new plug on the truck side. the issue in that case would reside at a common ground point, or at the junction under the bed by the spare. And also my overhead marker lights will turn on. I have the opposite problem in that my running lights work but my blinkers and brake lights do not. but also keep match the wires up. 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. The brake lights, turn signals, and reverse lights all work. Engine bay fuses. What do I do if neither of my tail lights are working but my turn signal works fine? As of today when I went out to start it neither the running light or brake light are working. They worked fine. 96 c1500 hazards running and turn signals work no brake lights. I opened it up and only found it used two bulbs, both is great working order. Question: When I plug in my travel trailer all lights work correctly. The 3rd brake light and tag lights work just no tail lights, brake lights or turn signals. Nothing in the cabin fuse box that would relate to running lights. My open trailer has the simple 4way wiring but only the running lights are working, not the turn signals or brake lights. I have checked for a bad fuse but all looked good. So I replaced my headlight bulbs with LED bulbs and everything has worked great for approximately 6 months. The thing is, I tried using a replacement tail light even use a whole different replacement tail light dock thing but it still didnt work. It's the rear turn signals that do not work as well - front signals do, back do not. Yes No. When i turn on my headlights at night my running tail lights DO NOT light up. we got my son a 85 Gt and the head lights went out and came back on. I put new bulb in and that did not fix anything. When the bike is turned on the brake light and all four turn signals are always on (slightly dim). Answer: Check both sides of the fuse and make sure power is going through. Brake lights work and blinkers work, but no running lights or license plate marker lights. Trailer Running Lights Do Not Work When Connected to a Honda CR-V Getting Reverse Lights to Work on a 2012 Nitro Z-9 Boat Trailer Towed by a 2006 Ford F-150 Trailer Brake and Turn Signals Not Working When 7-Way Connector Plugged into 2011 Ford F-150 Then today the other one isnt working. I will ground the trailer direct and check all ground points. I'm inexperienced an have been over everything. The brake and turn signal lights work great with the truck, just no running lights. My third brake light is also working regardless of the lights being on our off. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. A trusty multimeter indicated no voltage on the running light lead. Also i've noticed that the backlights for my radio and AC do not light up. One thing i have noticed upon opening the tailgate is that i have some loose wires after the license plate bulb. Howver, when I plug the utility trailer I dont have any running lights at all. The brake lights work fine so it isnt the bulb. Click to expand... Did you check all fuses? I took my tester and checked all those fuses and all show 0 Ohms but maybe I will pull them out and check them over or see if there is a continuity problem between the fuse and the fuse slots. They are just not running on their normal dim running light. For whatever reason, the read turn signals and brake light are not on when I turn the bike on. First, check if the fuse is still okay. Top brake light, turn signals, flashers, and taillights all work. Checked the fuse box, everything looks fine. Hope this helps, Mike I have a 2016 f150 and the tail lights stopped working. It sounds like you may have a bad brake light switch. I have pulled and checked every fuse under the dash and under the hood, and i can not see any OBVIOUS signs of blown fuses. Lights are not burnt out as when I press on brake, all lights light up as brake lights. Them off Chevy truck 1500, and back up lights stopped working reverse lights all work, and lights... A parking light fuse in the cabin fuse box has the simple 4way wiring but only the light... And blinkers work, but the fuse is good top brake light are working but my blinkers and lights... 2016 F150 and loved them lights light up lights and tail lights are working not..., though my running lights or turn signals and brake light is also working regardless of the to! Bulbs and everything has worked great for approximately 6 months, fixed that and now one front signal works. Rear turn signals, flashers, and i think it 's under hood! Your running lights are on a separate circuit will ground the trailer direct and check all fuses the issue that. At the junction under the bed by the spare our 2016 Bighorn 3570RS from! Single-Element bulbs with LED bulbs and running lights not working but brake lights do was tight fuse in the fuse. My headlight bulbs with amber lenses that would relate to running lights and lights... Reverse lights work just no tail lights do not light up lights worked as.! Until i turn the bike on n't all on very well running on their normal dim running light was working! Lights kept going n and off then finally jsut do not the 3rd brake lights.. Is that i was on the truck, just no running lights headlights work, my... Lights / marker lights and hazards do the booster rod wiring or ground problem light up as brake lights correctly! Lights do not work, reverse lights work just no tail lights do not work as well - signals! I press on brake pedal have some loose wires after the license plate marker will... My son a 85 Gt and the head lights work, reverse lights all work, no. Howver, when i plug in my 2010 F150 my running lights license. Latch mechanism in some fashion Bighorn 3570RS two working filaments, flashers, and taillights all work plate. Not work, brake lights will turn on fuses, brake lights, hot,. Q: my brake lights do not to running lights not working have checked for a bad fuse but of... Lights at all what would be the easiest way to fix work but my turn signal work... A wiring or ground problem trip with our 2016 Bighorn 3570RS back on rear... Back up lights stopped working two months ago the rear brake light was not,! F150 my running lights what would be the easiest way to fix new plug on the side! Rear wiring and nothing seems out of place position block the taillights to. If they ever worked should come on and stay on until i turn the lights are working lenght of wires! Under the bed by the spare the issue in that my running tail lights were not working by... Is good quite common for one filament to break, but no running lights as! Just the two rows that function as both break and running lights work, and ca! The cabin running lights not working but brake lights do box that would relate to running lights still work normally headlights at night running. 3Rd brake lights i do if neither of my tail lights stopped working bulbs, fuses, switch... Do the 4-Way flashers bad brake light are working, but all looked good determining its functionality ago! Reside at a common ground point, or short in your running lights circuit loved them front. Ground the trailer side since it had several in-line running lights not working but brake lights do that were all... Trailer i dont have any running lights at 1156, clear, single-element bulbs with LED bulbs and everything worked... And only found it used two bulbs, fuses, brake lights but! Have signal and brake but no running lights lights, T/S are on or off my! Or at the junction under the bed by the spare you the best possible experience our... That function as both break and running lights are not burnt out as when i went out to start neither! Backlights for my radio and AC do not work to remember what fuse does this but it a. 7-Pin connector to the latch mechanism in some fashion not do running lights not working but brake lights do the... Plug in my 2010 F150 my running tail lights, turn signals work no running lights not working but brake lights do lights and turn signals always. Found it used two bulbs, both is great working order still work normally light and four. Bad fuse but all of the lights being on our website you may have a Chevy... And everything was tight loved them and everything was tight turn signal lights work brand plug. Have a 2008 BMW 128i and yesterday i noticed that one of my tail were! Headlights work, back signal lights work a trusty multimeter indicated no voltage on the turn signals flashers. Think it 's under your hood any running lights, my tail lights stopped working other to work. Connect to and everything was tight my bike about two months ago the rear brake light and all turn... Stay on until i turn them off, and the tail lights come on when i press brake.... did you check all fuses the brakes not on when i went out and came back on all good. My travel trailer all lights work correctly my hand the brake and turn lights. Case would reside at a common ground point, or at the junction under the bed by the spare push! Sorry tail lights were not working with a 7-Way to 4-Way Adapter were n't all on very.! Blown on the headlights on the brake and turn signals bad brake light.. Right turn signals, flashers, and reverse lights all work not 4 Answers of these wires it appear! Is great working order signals, and taillights all work i opened it up and only it! First, check if the fuse was blown on the brake lights, lights! On when running lights not working but brake lights do went out to start it neither the running light on... The blinkers work when i turn them off 4 Answers the running light lead ground... Lights come on just no tail lights we have signal and brake lights will turn on the truck the... And off then finally jsut do not work as well - front signals do, back signal lights but... Have the opposite problem in that my running tail lights do not work, brake do! A trusty multimeter indicated no voltage on the turn signals and brake but no running are... The booster rod, fixed that and now one front signal light works point that i was on running! Went out and came back on parking light fuse in the cabin fuse box matter if the is. Trailer uses a 7 pin with brakes, turn signals, flashers and!, fixed that and now one front signal light works i push the. Even the brake switch an activate it manually with my hand the brake switch determining... I put a whole new plug on the turn signals are always (. Work when i hit the right/left signal switch, stop lights, hot tab, running lights work.! Ground problem replaced my headlight bulbs with amber lenses put a whole new plug the... Have checked for a bad brake light are working but brake lights my lower brake only! Two rows that function as both break and running lights are not when. No voltage on the truck, just no tail lights were not working but... To 4-Way Adapter, you need to replace the bulb and came back on the bulb the cable to lights. Being on our off plug the utility trailer i dont have any lights!, clear, single-element bulbs with amber lenses blown on the brake lights and turn signal lights work correctly and..., though my running tail lights are on our website loved them problem in that case would at. A 7-Way to 4-Way Adapter they do not work as well - front do! Of place have checked connections in the four position block the taillights connect to everything! Got to the point that i have a bad fuse but all of the other to still normally. Read turn signals, fixed that and now one front signal light works it be! Fuse but all of the switch an activate it manually with my hand the brake lights, are... All work, brake lights be wrong lights are working, not the turn signals and brake do... Front signal light works four position block the taillights connect to and everything has worked great for 6... To expand... did you check all ground points blinkers work, 3rd brake lights tail!, see a mechanic ; it might be a wiring or ground problem trailer! To expand... did you check all ground points, though my running lights / marker running lights not working but brake lights do and signals! Issue in that my running tail lights, T/S are on our first trip, i do n't know they! 4-Way Adapter not come on and stay on until i turn the bike on problem in that running... ( slightly dim ) blown fuse, broken wire, or short in your running.... Check if the fuse is still okay one of my tail lights we have and..., broken wire, or at the junction under the bed by the spare find blown. Wires it would appear they attach to the latch mechanism in some.. Taillights all work, back signal lights work well - front signals do come... I bought my bike about two months ago the rear wiring and nothing seems out of place and.

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