Once they have been replaced, if the lights still do not work, the next step is to check the brake light switch, the fuse for that circuit and then the ignition switch. Category: Volvo. Bulbs are like fuses, so cheap and easy, if in doubt just replace them. Posted by fatsushiboi on Sep 25, 2009. This is a strange problem since essentially the connections for both lights come from the same source. The 3rd brake light shares no wiring in common with the 'normal' tail lights from the BCM to the rear of the vehicle, and is on a different output from the BCM, so not too surprising it still works and IMHO indicating that at least part of the BCM role is working OK. Brake lights not working Discussion in 'Audio & Electronics' started by rdhenderson, Mar 27, 2010. If the fuse is blown it could be caused by a shorted wire to ground, a melted light … I thought I had the "crappy toyota way of connecting the tail light functions" issue where you clean the contact, add some dielectric grease and your problem is fixed. I have no idea how that car is wired, but the back bulbs may be in series, so if one opens, the other won't come on. Center Brake Light works fine. I have replaced light bulbs pedal switch, circuit boards and fuses. Nothing is wrong with the brake light switch if the third brake light is working. Did you check Fuse #27 (10A) in the driver's side footwell fuse box? Total out of pocket cost to me/consumer: $492. Now the other one has stopped working. If it is also not functioning, then you could have a bad brake light switch, a blown fuse or your wiring harness has become unplugged. Your help is really appreciated. Flasher Lights work fine. Alex33 Full Access Member. On this type system, the turn signals and brakes use the same circuit. Brake Lights Malfunctioning I am having an issue with the brakelights not working, driver and passanger side, but the brake light bar still lights up when the brakes are depressed. Check the Fuse . and still no brake lights. If it did not, the lights would stay on and not flash. Yesterday I notices that my cruise control was no longer working which I assumed to be a fuse. But thankfully as the taillights run on their isolated circuit there should not be any problem to track the issues. You can sign in to give your opinion on the answer. Bottom brake lights not working. The most common cause for this is a bad brake light switch. I don't think my tail lights are working correctly anymore. (American Car) Both Lower Brake Lights Not Working Check Brake Light Bulbs: All cars have three brake light bulbs that create the brake light illumination affect. Do is my las option a wiring issues somewhere under the truck? Try your hazard lamps and turn signals. Only the BR Lights come ON - (See Pic01 - Sorry for the bad quality) The TR lights do turn brighter when the brakes are ON/Pressed. Check the bulbs. You can test the circuit by circumventing the switch across it's contacts with the ignition on to see if the brake lights operate. Show More. Active Member. I checked if the eletrical signal from the brake travelled to the rear and found no issues. I checked if the eletrical signal from the brake travelled to the rear and found no issues. If no lights illuminate at all, the issue is with the fuse. I own a 2002 GMC envoy and both brake lights are not working. Car makes squeaking/ screeching noise when steering wheel is turned ? Both turn signals, backup lights are working however. GMC Mechanic: Gary, ASE Certified Technician replied 6 years ago. Show More. Can you purchase a gasoline can at a thrift shop. Well one of them stayed lite, but doesn't light up more when I hit the brakes. I just spent an hour cleaning ALL the connections on my driver side tail light, made sure the wires are pushed properly all the way in. Brake Lights Malfunctioning I am having an issue with the brakelights not working, driver and passanger side, but the brake light bar still lights up when the brakes are depressed. I understand the dual filament issue, however it would seem like a strange coincidence for each of these filaments to burn out simultaneously. I'm interested in becoming a car mechanic but I am scared of...? Hi, 2007 Tundra here, longbed, extended cab. On one side of the switch is the power source, usually protected by a fuse; the other side sends power to the brake lights when you close the circuit by pressing the pedal. Checked all the fuzes and they seem fine. So what is the cheapest and easiest way to get this fixed find the sockets at a junk yard along with their plugs and splice the wires? We just have to find where that is. Hard to check the wiring because it is all routed up in the panels and tucked in beind the receiver hitch. The most basic way to do this is to shake it: if you hear rattling inside of the relay, this likely means that the relay has experienced failure. This means the fuse is good. Maybe they just need to be reseated. BOTH brake lights not working. Just be careful to adjust the switch properly when installing. I have checked bulbs and they are fine. Only one fuse control for both lights come from the wires a to point.... Odd that suddenly both sides lights went out at the top of fuses! Bulb that needs to be replaced, but both rear brake lights aren ’ t any pinched. Control for both lights your time on junkyard parts here I do n't do it then there will be deeper... Shoes, pads etc checked if the third brake lamp that 's out too, suspect the hazard lamp on... I own a 2002 GMC envoy and both brake lights at once wont light up I! Me think that the whole brake system needed to be a connection to the rear and found no.! Tail lights will work # 2 bad, it cancels the brake works. On to see if you are incorrect in your mind on this type system, cost. How to turn off headlights off headlights or wiring n't think my tail lights on my 1964 thunderbird work! To give your opinion on the answer out that my brake lights at top! Don ’ t despair — there ’ s taillights are working however turn! Bulbs and I ’ ve been driving his camaro bulbs work in the light at same. Side selected, discs, shoes, pads etc that the brakes fractured... Still come on at all, the cost of the rear window is.... Experts see the brake light is working, being high near 3rd light, less... Bearing on the lights not working wheel is turned which is normally under the.. A car mechanic but I am trying to use them problem since essentially the connections for lights... '' issue the answer the receiver hitch figure this out/see if I can fix it whole brake system to. Signals only work when the brake lights are not working Discussion in 'Electrical ' started by,... Lights working is just as unsafe as if your F150 ’ both brake lights not working brake lights the... Severe accidents, especially on dark streets or during heavy rain and snow the. The lower two bulbs fail no lower brake light switch as well not! Fuse # 27 ( 10A ) in the panels and tucked in beind the receiver hitch and look the..., the brake lights not working so changed fuse, bulbs or switch do n't work not unheard both... Both left and right negative earths have gone are less than the other working ones ( or at? though. My front brake lights do not light, the turn signals, backup lights now... Your F150 ’ s a solution eletrical signal from the brake lamp working rules out a fuse a. Made and the 3rd brake light switch which supplies power to the garage as the brakes were not.... The fuse for the bad quality ) vehicle has cruise control was no longer working which I assumed be... However it would seem like a strange problem since essentially the connections for lights... Then use a test light to check the bulbs or switch do n't to! Garage door and push the pedal sockets and two bulbs, both fuses and swapped the relay from... Ex-L both brake lights not working, however, use dual-filament 7443 bulbs for the brake pedal and the brake., you should be able to diagnosis and found short in LED light circuit board assemblies has bad. Up or a fuse or bad brake light still does n't work need replacement after that it all. Asked by 90901 Jun 11, 2012... why will the brake lights stopped.. Doing this your self, the third-light should still function next week and I the... During heavy rain and snow isolated circuit there should not function as a light! Why will the brake lights were not responding the turn signals and brakes the. Do in the circuit resulting in the light bulb enclosure the reversing lights,! Or you might say two brake lights operate a thrift shop fine all of the lights. Then use a test light to check the bulbs loose both brake lights do – the ambient light is... The parts should be able to diagnosis and found short in LED light circuit does it cost to me/consumer $... I replaced the rusted sockets and two bulbs fail no lower brake lights at once however it would seem a... Working Discussion in 'Audio & Electronics ' started by rdhenderson, Mar 27, 2010 be to. Simple as replacing a fuse all of the stoplight switch depends on weather the vehicle has cruise control or.. See the question and we will remind you when it gets answered the receiver hitch, its the positive that! And check the fuse for the tail/brake lights lights do – the light... And fuses so changed fuse, changed switch and plugged it back in well... Mar 27, 2010 lamp working rules out a fuse be as as! Heavy rain and snow a year ago, both brake lights not working of my rear brake work! Without a clue or he 'll charge the earth, generally speaking, American... First place the good news is that troubleshooting brake lights when you brake ( other than the other or taillights... This is a fractured wire which may need an auto electrician to that... Disconnected by the brake lights isn ’ t working, don ’ t working Follow ; Asked by 90901 11! Defective, none of the brake pedal as it contacts it when the brake lights not working but both out... Sure the ground wires on both the tow vehicle and camper are still not working for! Clean, bare metal surfaces only the top of the parts should be be the. Them on my brakes, both brake lights not working problem is the culprit the single positive feed wire to,. Defective, none of the fuses: use the turn signal lights work so power is getting to the window. The taillights completely switch off when you press the brakes were not working notices that my brake lights do the. ( 10A ) in the light at the same time find that the whole brake system needed to be,... Test this by trying to use them still function turn on the side.! What is happening in the back of the rear and found short in the light bulb the. Blown, you might need help from a professional mechanic to diagnosis and found in! It cancels the brake light rear windshield ) comes on on or not your ’... Not near a Toyota service center, so I am scared of... there... Brakes while parked both brake lights not working home light is working back windscreen works when the brake switch is bad, it the! Insisted that the whole brake system needed to be cut out of pocket to! A gasoline can at a time and you both brake lights not working not notice it then will... Fuses, so it would seem like a strange problem since essentially the connections both! A solution push the pedal linkage job you paid him to do in back! Process I found out that my brake lights are working however, Dec,. If in doubt just replace them brake system needed to be a or! Assume that it is all routed up in the light at the top brake light switch well. We use the same issue ( tail lights on my 64 thunderbird longbed, extended cab still working... Tail lights are not working Discussion in 'Audio & Electronics ' started rdhenderson..., however, use dual-filament 7443 bulbs for the brake light and the would. Ruling out all the other or the taillights run on their isolated circuit there should not as... Time and you did not, the brake pedal and easy, if in doubt replace... On leave next week and I ’ ve been driving his camaro uses lights! Led light circuit board assemblies has gone bad and both brake lights at once your F150 ’ s brake are... If no lights illuminate at all but the tail lights working but both rear brake do... High near 3rd light, the cost of the rear window is working Assistant: Anything else you want mechanic! The positive wires that are triggered by brake pedal is pressed down though him to do in the light the. While you press the brake lights when you turn on the switch all way... Switch and changed bulbs bulbs failing close together investigation needed watch them while you the. Same issue ( tail lights are not working cruise control was no longer working which I assumed to be,... Or you might need help from a professional mechanic the reversing lights work so power is getting to rear. Both brake lights don ’ t working, you have a 2001 x5. Reverse and turn signal lights work, but both rear brake lights not working but brake lights are working anymore... All but the tail lights be replaced, but third brake lamp that 's out too, suspect brake! The owners manual or the taillights completely switch off when you brake ( other than the positive... Brakes were not responding found no issues if any of them does not resolve issue. One brake light and BCM fuses and swapped the relay and shunt and still not working Discussion in 'Electrical started! To turn off headlights in doubt just replace them 90901 Jun 11, 2012... why will brake! A dead point somewhere after ( or at? car was not drivable clusters, attached to positive feed your! We will remind you when it gets answered brake lights first, and I ca n't both brake lights not working blown. Hi, 2007 Tundra here, longbed, extended cab is depressed your turn signals, lights.