Yesterday I notices that my cruise control was no longer working which I assumed to be a fuse. I checked the bulbs but they were fine. I checked if the eletrical signal from the brake travelled to the rear and found no issues. 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. When your brake lights don't work, it is usually because of a blown fuse, a worn-out or broken brake light switch, or a burned-out light bulb. I have checked bulbs and they are fine. Even tried switching bulbs to use the one that I knew was working on driver's side, but still wouldn't work on passenger side. Test the Fuses: Use the owners manual or the lid of the fuse panel to find the brake light fuse. Both sides (Red Tops) lights went out on me at the same time (I've changed the top bulbs with LEDs afterward). GMC Mechanic: Gary, ASE Certified Technician replied 6 years ago. Also has anybody ever changed the bulbs in the light at the top of the rear lid window, is there a guide? Lamps were replaced under 80/20 warranty offer. It takes a long time to notice when the brake lights not working but tail lights are or vice versa. Anyone any ideas? Is your car a coupe or a sedan? Both of my brake lights are not working on my 99 jeep wrangler,but my third light is,my hazards are working as well so i know it isn't the bulbs,what should i do,if it is a fuse where can i find the fuse box thankyou. Hazard lights and turn signals use the same bulb, so it is not the bulb, the lamp, or the cables to them. Both turn signals, backup lights are working however. The first thing to check when your brake lights are not working is your third brake light. The brake light switch should be be near the brake pedal as it contacts it when the pedal is depressed. If the lower two bulbs fail no lower brake light operation will occur. The cost of the stoplight switch depends on weather the vehicle has cruise control or not. Answered in 1 minute by: 6/11/2014. Brake lights not working Discussion in 'Audio & Electronics' started by rdhenderson, Mar 27, 2010. Ask Your Own GMC Question. EX-L sedans have LED tail lights, so it wouldn't be a "bulb" issue. So I'm guessing there is a problem with the brake light switch as well. What's happening?! It may be displaced or need replacing. The brake lights are operated via a switch under the brake pedal and the reparis would have no bearing on the lights failing. But the passenger side brake light still doesn't work. Discolored terminals on the relay can also be a red flag. If your brake lights aren’t working, you’re way more likely to get rear ended than normal. Show More. Both brake lights not working. The center or 3rd brake lamp working rules out a fuse or bad brake light switch so I would check the bulbs or wiring. Can you purchase a gasoline can at a thrift shop. This includes both left/right brake light and the 3rd brake light. Also has anybody ever changed the bulbs in the light at the top of the rear lid window, is there a guide? How your brake lights work. If so, its the positive wires that are triggered by the brake pedal. Neither of my TR lights comes ON anymore after they went out (both sides' TR stay OFF while driving in the evening) and I replaced them. Step 3 LORDJUBBLY MEMBER; 2002 VAUXHALL ASTRA; 1.6L; MANUAL; 126,000 MILES; Hi I have recently found out that both my rear brake lights are not working. Share this conversation. If the rear turn signals do not light, the bulbs are probably burned out. This is on a 2007 Versa Sedan. When the brake lights would not work, car was not drivable. But on the other side the one brake light socket is fine with no rust and even the bulb works yet both brake lights do not work. Join Yahoo Answers and get 100 points today. Thanks for the help! Flasher Lights work fine. i changed both bulbs and i changed the fuses in the front compartment marked brakes. and still no brake lights. My dash lights all work, and I can't find any blown fuses. Press the brake pedal while the engine is on and the car is in "Neutral" and look at the brake light reflection. Brake lights not working Discussion in 'Electrical' started by fordX2, Dec 16, 2005. I am not near a Toyota service center, so I am trying to figure this out/see if I can fix it. Still have questions? Discussion Starter • #1 • Apr 15, 2019. Both brake lights and the high level brake light have stopped working. I have opened the inter liner of the trunk lid and from the back of the tail lights. They are the same age after all. I have checked bulbs and they are fine. and still no brake lights. At some point the power is not getting from point A to point B. Bulbs are like fuses, so cheap and easy, if in doubt just replace them. Replacing both bulbs was next on my to do list, but it seems odd that both lights work when the lights are turned on but not when the brakes are hit. The brake lights are triggered by a switch mounted to the brake pedal. There are no wires disconnected by the break pedal either. You can sign in to give your opinion on the answer. 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. When we use the turn signal switch, it cancels the brake light signal, on the side selected. I can see to the uninitiated the two might be linked but you are incorrect in your mind on this. I replaced the rusted sockets and two bulbs, that seemed to do the trick. If you see one or two of the brake lights illuminate, you can deduce that the issue is with the bulb on the failed brake light. Check the Fuse . Category: Volvo. Appears to be fine but in the process I found out that both brake lights are now out. If you have a high-mounted third brake lamp that's out too, suspect the brake lamp switch on the pedal linkage. Estimated cost; $15.00. Not a garage job if have basic tools, needs say clip-over wire connectors, roughly 2-3 metres of same gauge wire, and duct tape. Analog switches wear out over time, and they can get dirty, too, which interferes with their ability to make positive contact and transmit the right signal. Posts: 1,235 Likes Received: 22 Joined: May 6, 2009 Name: Alex. Still not working but in the light bulb enclosure the reversing lights work so power is getting to the cluster. If you are doing this your self, the cost of the parts should be between 15 to 22 dollars. I dont think that is it because they usually cause the brakes only and all of them to start blinking on and off but can go out completly. The brake light on the cab should not function as a running light, they are only brake lights. The chances that both left and right negative earths have gone are less than the single positive feed. Another thing to try is with the car off, put your foot on the brake and wiggle the turn signal switch and see if the brake lights work at any time while wiggling the switch. 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. With this type of system, the turn signals use the same circuit as the brakes, which means that you cannot have both of them on at the same time. I have called the mechanic & he seems to think there's no link between the repairs he made and the lights being out. Brake lights working fine now. If the brake switch is defective, none of the brake lights will work. It's rare but not unheard of for more than one bulb to fail at once but a wiring or ground problem would easily take out two bulbs at the same time. Both Tail LIghts, both Brake lights and both Turn Signals do not work - F150 2010 - Just quit working all at once Easiest fix, if not just needing new bulbs: check permanent negative earth continuity is complete to bulb holders (normally this is the part of the holder contacting the outside of the bulb, not the central tip). I checked the bulbs but they were fine. Try your hazard lamps and turn signals. I checked all fuses and they were fine. The tail lights to me are divided (because I don't know their technical names) in three parts: Top-Red (TR), Middle-Clear, and Bottom-Red (BR). You can test whether or not your F150’s brake lights are working all by yourself. Show Less. Pink fluid in coolant reservoir & anti-pollution system dummy light. 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. Tail Light works fine. The easiest way is to replace all the corroded sockets. Both brake and tail lights are crucial for road safety. And the brake switch, how do I check it and what does it cost to replace? Focus lights, being high near 3rd light, have less distance and trim involved than say a large estate car. Share this conversation. Replaced both bulbs, both fuses and swapped the relay and shunt and still not working. already Checked fuse Brake Light Switch, no power at bulb connector, checked ground Related Repair History - replaced transmission Fluid and all problem started Jag Posted by GTA Canadian on Jul 16, 2009. When the brake lights would not work, car was not drivable. Had a friend tell me last night that my brake lights were not working. Sounds like the bulbs are bad and need to be changed. Just be careful to adjust the switch properly when installing. If the lower two bulbs fail no lower brake light operation will occur. Any suggestions before I start with the usual fuse checking, swap bulbs, etc? GMC Mechanic: Gary, ASE Certified Technician replied 6 years ago. You can test the circuit by circumventing the switch across it's contacts with the ignition on to see if the brake lights operate. Dealer was then able to diagnosis and found short in led light circuit board assemblies has gone bad and both lights would need replacement. On vehicles that use the same lights for brakes and turn signals, a bad turn-signal switch can cause the lower brake-lights not to work. There is a small chance both bulbs died at the same time but in my experience 2 bulbs going out together is very very rare, but totally possble. Posted by fatsushiboi on Sep 25, 2009. 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