Indicator Not Working But Bulb Is Good

com Welcome to DMCTalk. The brown is power for the parking lights, black is ground to both filaments. Any advice?. If the hazard is blinking on one side of the car and not the other then the flasher relay is good. It is normally off. Lamp Failure Relays do go bad. But you say the bulb is good and you have "power to bulb and there is current". If the flashers work, check for blown fuses as a few vehicles use separate circuits for the lower and third brake lights. They tried putting in the new bulb but had the same conclusion, its not working. when left turn selected, green left arrow indicator flashes very fast which, according to manual, could be a defective bulb. Please activate ‘Daytime running lights 2/2’ as well. Cybersecurity leaders are also business leaders, working to protect data without business interruption. Fuses check out, no codes or warnings. My bulbs havn’t blown on my tap lamp , just can’t get this to work in MOST of the outlets in my home. When the dashboard lights in your vehicle malfunction or cease to operate, the resulting effects can range from being a mere annoyance to posing a safety hazard. 2 rear bulbs per tail light and 1 for each signal up front. It doesn't make much sense but that's how they're wired. take a good look at the light bulb filament inside. hampton bay ceiling fan light wont work I have a hampton bay fan model (from sticker on top of motor) TDC1152BP5LKLRC, and the lights stopped working on them. The power that feeds the brake lights has to go through the turn signal switch first then back to the brake light bulbs. Test the oven selector control. Re: ThinkPad X1 Tablet cameras not working and lights are ALWAYS on ‎06-24-2016 08:42 AM After waiting 3 weeks to get my device back from Lenovo Repair depot( the camera worked before I sent it off), opened the box from UPS, turned on my device, now the green light on the front camera is always on and camera no longer works. The side markers work, brake light works and it lights when the lights are on just no. We tried to reset the bulb life counter but without the bulb working we can’t see the reset screen. I changed them today, and they are still not working. She ultimately convinces Glassman to hire her to work in the clinic, which is starting to suffer due to poor office management. This would be the one that lights when the MPX chip detects a 19 kHz pilot and the tuner goes into stereo mode. The rapid flashing and clicking indicates that one of the bulbs has burned out. If this IS the case, I suggest you call a qualified electrician in to sort it out. Re: Left rear blinker not working but bulb is good You'll have to locate the circuit for the left, rear turn signal at the steering column under the dash. With very little current, the filament would not glow. It mates to a light blue wire coming from the body control module. When the lower lights do not come on and only the third-brake light works, the brake-light switch may be ruled out. When it comes to diagnosing and testing electronic circuit, Power Probe, Inc. YELLOW LIGHTS – Service engine soon, check engine, Anti lock brake system, low washer fluid, low tire pressure, traction control, air bag, taillight bulb out warning are all common yellow warning indicator lights. We discuss the importance of choosing LED bulbs with resistors that prevent a false low voltage “bulb out” warning, and selecting the correct LED bulb color for clear lenses. Could this also be related to turn flasher?. I’ve written this simply as I can in easy basic steps so that hopefully anyone with a little understanding will be able to ‘help themselves” as much as they can before having to ask for assistance. com Welcome to DMCTalk. Is an outdoor specific LED bulb needed for a fixture that is protected from weather, but not from the cold? Asked by Tim Sayers I am interested in replacing the incandescent bulb in my outdoor fixture which is on the ceiling of the porch, under the eaves. Reverse Lights Not Working at all, bulbs are good Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. Old owner. Because choosing automotive lighting devices and bulbs is a good bit more complex than it might seem, and a great deal more complex than some vendors would have you believe. Use the below tool to learn what charger is best for your smartphone, tablet, laptop or other USB device. If it clicks at about the right rate, and the test lamp also flashes, then the flasher unit is in good operating condition. While we generally don't advise streaming over a data network as a fix, it's a good way to see if a home network configuration issue is what's keeping you from streaming reliably. By: Jonathan Z. Select the position of the bulb on the vehicle. The High Beams are split into two circuits, left and right. I checked a couple fuses with no luck. Their job isn't to help the driver see the road but to help other road users see the. left rear indicator light not working despite bulb changed. Businesses Use Music. I have a track light of three mini-floods. I'm not sure where under the hood the relay Could be. When i'm near the car, the light on the key fob blinks about once a second. It mates to a light blue wire coming from the body control module. Do not attempt to repair an adapter cable in this state. If turned on and working good, just the indicator light that does not show. Find out why your motion sensor light is not working. Please check it out or ask our customer service staff directly; Water flowing turn signal LED light inside, good safety warning performance. So try a good bulb on both sides and see what happens. When the lower lights do not come on and only the third-brake light works, the brake-light switch may be ruled out. THERE ARE NUMEROUS THREADS ABOUT THESE TOPICS COMBINED INTO THIS THREAD I changed the Low Air Pressure Indicator Switch located near the wet air tank, because it was not working correctly, occasionally sticking leaving the light and buzzer operating after the air pressure was at it's maximum. Check all the fuses first. hold down the power button… wait then plug back in. Always refer to your owner's manual when you're not 100% sure what the light indicates. Adjust the door springs. What is wrong if the left brake light on a 92 Cadillac STS will not work but the bulb its ok and not work but indicator light on the dash will not work, it is a good idea to check the. Perhaps a bad batch. switched bulbs from good side and put on bad side and bulb not working but bad side bulb is working on good. Thanks for the response No, the high beams are not onThe indicator stays on even with lights off As I said in previous post, when you disconnect the daytime running light module, the high beam indicator does not come on at all, though the high beams workIt seems like all these things are related as they all started at the same time. If the indicator light is not burned out, bu t the light still doesn’t work, the user control and display board might need to be replaced. From: archae0pteryx-ga on 14 Nov 2004 00:36 PST aht-ga, even though this was not a diagnostic guessing game but a request for a look ahead to the scale of the likely repair, you have supplied the most information and also apparently a correct analysis of my little problem. I have a 2005 Ford Exploer. If you’ve done the above steps and the battery is continuing to not charge and the MagSafe adapter is not working, your next bet is to schedule an appointment or phone call with Apple official support channels to get the MacBook, battery, and MagSafe adapter looked at. but the power button does nothing. Some days my brain works better than others. Oven's self-cleaning feature does not work. I noticed my passenger side directional not working, bulb looked good, but replaced it anyway, still no good. Voltmeter shows power to all connections((different values though - 8V;11. Clinking sound from the relay. The bulb is good and l have checked the fuse, it is good also, Yes I checked under - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Again, check all the connections. Halogen bulbs always need to be handled with tissue or something, do not touch them. This is where some testing and observation is needed to repair a bad connection or broken wire. All Six Hundred Series Sub-Zero use these light bulbs. Thanks for the response No, the high beams are not onThe indicator stays on even with lights off As I said in previous post, when you disconnect the daytime running light module, the high beam indicator does not come on at all, though the high beams workIt seems like all these things are related as they all started at the same time. Tail Lights not Working – 4 Reasons. If your tail lights are broken or not illuminating, don't take your car to the mechanic! For a straightforward light or fuse replacement, you can fix your tail lights yourself for a fraction of the price. after putting out battery for some sec will not work. The only difference in circuit operation for Hazards is that the flasher receives power from the second fuse, which is live whether or not the Ignition is. The BCM is what provides the blinking voltage, not the multifunction switch. fast blinking blinkers I have a 2004 Limited. The indicator lights still work and my turn signal still. Re: Jetta tail Lamps won't light but all other lights work perfect (denverjetta) 04-19-2010 11:09 AM #2 Are you saying that both tail lights don't work but the front parking lights and both front side markers work?. Also, make sure all the signal lights work. I noticed my passenger side directional not working, bulb looked good, but replaced it anyway, still no good. Key sync doesn't work. They tried putting in the new bulb but had the same conclusion, its not working. If the bulb holder is grounded properly, the multimeter will show a constant current; if there is no ground, the multimeter will show an open circuit. Remove the retaining screws and pop out the headlights [be careful not to turn the adjuster screws by mistake- carefully remove and check / test / inspect the bulbs, lamp holders and wiring for signs of blowing out, chaffing, shorts, etc. The left turn signal on my 2000 EX is doing the "fast blink" thing, as if one of the blinker bulbs were burned out. Again try the emergency-flashers to check for wiring, socket and lamp problems. This is the most common cause of a single high beam headlight not working, but isn't common if both high beams aren't working, because it's highly unlikely that both bulbs would blow at the same time. It's a fun place to get together with some friends after work, or for family time. Clean, rust-free electrical contacts are critical requirements when it comes to the electrical system on a collector car. The RV systems monitor panel allows you to see at a glance the condition or your RV systems. this sounds hard but is not that difficult. The compact fluorescent lamp (CFL) replaces regular incandescent bulbs. My driver info, odometer etc. ground the blue wire either at the bulb, or at the regulator, or alternator and see if it lights. The power for the indicator light comes from the Left High Beam circuit, or second fuse from the left. Saved me a trip to my mechanic and being stranded. I still get the indicator that there is a bulb out on the left. If the 3rd brake light works, that confirms the switch and fuse is good. The drivers side rear turn signal is not flashing and the dashboard icon of a bulb and explanation point is lit on the dash. Fuses check out, no codes or warnings. but after we unplugged the camper to leave today I went back in to get something and nothing. He then switched the brights bulb and the new bulb, which caused the headlamp to start working but the brights is now not working. Indicator lights stopped working? Let’s reset it. More and more products are being produced at a faster rate and that leads to reduced quality. Blinkers work. Any other things to check? Thanks for your help. This article will discuss turn signal issues and some ways to go about finding the problem as well as fixing it. Troubleshooting your PetSafe radio fence includes testing each of its components, including the collar, the boundary width, the transmitter, the underground wires and other electrical fixtures that can cause interference with your system. Flasher Lights work fine. I turned the lights back on and drove it awhileand it stayed on for about 20 minutes. It seems all functions on one row of fuses in the fuse box have stopped working. When you are in a safe place, call M. If the fuse is good, then it may be an electrical issue that goes from the fuse to the lamps. Your self-balancing scooter is more like a "good luck keeping your balance" scooter. I never knew there was a flasher for the turn signals, thought the other flasher was only one. Today I noticed some LED lights on my keyboard were not working, I was able to get the mute button LED light to work but I still can not figure out hot to get the Cap Lock button LED indicator to work can someone please help me figure this out?. other driver side indicators (mirror and rear) work fine. I've given up. Will work sometimes if i hold onto something metal. Remove the retaining screws and pop out the headlights [be careful not to turn the adjuster screws by mistake- carefully remove and check / test / inspect the bulbs, lamp holders and wiring for signs of blowing out, chaffing, shorts, etc. I never knew there was a flasher for the turn signals, thought the other flasher was only one. Flasher Lights work fine. You've seen bright red neon signs and other colors of lights, but do you understand how they work? Here's a simple explanation of how neon lights work. The fastest way to proceed is identical to what we discussed on the ‘no heat’ dryer, and the same 240V test bulb is again put to good use. I do not appear to have any front or rear side lights, no headlights dipped or main beam the indicators work ok but not on the hazard light switch. Add a ground to the bulb, etc. How Do Holiday Lights Work? We're getting into the holiday spirit here at the Department of Energy. All the other lights are good. The brown is power for the parking lights, black is ground to both filaments. found two burned wires inside of sensor. Your dashboard is designed to keep you informed about the health of your vehicle. More urgently the nearside front indicator is not working. The contacts may get corroded or covered with grease. The motor turned the wheel. this is a pretty good indicator of. Re: [hunter636363] Mitsubishi WD-60737 DLP with sound but no picture - Changed lamp & Ballast [In reply to] Can't Post UPDATE: I just replaced the full power supply board, & it did not fix the problem, & the red lamp still comes onI have now replaced the lamp, ballast, & power supply, & lamp issue is still there. “As we are working to grow cycling in New York City, we want to make it safer and we also want to make it an enjoyable ride,” said. hampton bay ceiling fan light wont work I have a hampton bay fan model (from sticker on top of motor) TDC1152BP5LKLRC, and the lights stopped working on them. Oven's self-cleaning feature does not work. If I had to describe their brightness, I would have to they are pretty close to Sylvania Cool Blues. That means that both sides of the dash bulb have +12V on them and no current can flow thru the bulb. We have been trying to read the wiring diagram line 75 and 22 look like the keys. But low beams and dashboard are not coming on at all? I am so frustrated. Clean, rust-free electrical contacts are critical requirements when it comes to the electrical system on a collector car. Is there a recall on these wiring harnesses or something because it looks like quite a few people are experiencing the same issues. Turn signals only work when the ignition is on; hazard lights work whether the ignition is on or not. That’s just a guess though. ground the blue wire either at the bulb, or at the regulator, or alternator and see if it lights. The front bulbs a famous for corroding. BMI powers 650,000 licensed businesses that use music. I changed them today, and they are still not working. Neon light strings. Inspect the electrical cord for damage. If there is a faint glow, you have a powered ground. Verify that there is 12v DC at the refrigerator because it uses both levels of electricity to work. LPT: If your turn signal is blinking twice as fast as normal, it means one of the bulbs is fried. Oven's self-cleaning feature does not work. A low battery, weak charging system, bad connections in the turn signal switch, or weak K5/K7 indicator relay can cause this problem. I have made sure that the connection is still there, and that the individual on/off switch on the lamp itself is "on". The ignitor lights up again but, the burners will not re-light. Its not unusual for both bulbs to burn out at the same time. Subject: Re: My car dashboard lights went out. My turn signals work, and my lights work, but when my lights are on, my turn signals will not work. Ford transit 54reg bulb not working on rear light? I have cleaned the earth cable but can't understand why the bulb works the wrong way round any help would be great its the near side rear light Update: Hi thanks for response. Test the oven selector control. The unit should be replaced. LEDs don't use much power and don't put a the current draw (LOW resistance) needed across the terminals of your tail, signal, or break light. (Wi-Gear also features a spare set of covers. - the compressor does not start, however - I continue to hear fan working continuously, but compressor does not seem to run - After a while compressor gets hot (I can still hold my hand on it without burning but it is pretty hot) Turned the temperature control all the way to the left to turn off again - Fan stopped immediately. Same issue. New part recvd & installed--still not working I received the part tonight and installed it per the video instructions. For 51 years, Tacoma’s United Lamp Supply has provided customers with hard-to-find light bulbs. The specific applicable models are marked in the product details. If your garage door opener light is not working, the fix might be as simple as changing the light bulb. The bulb life light came on and he replaced the bulb. If the bulb does not illuminate and multimeter shows the correct current on the live contact (as per the steps above), test the ground circuit between the outer metal part of the bulb holder and a known live wire that does not feed a turn signal. 5V Bulb 6/12/24V Illumination Lamp Light Home 10Pcs AU. If a new bulb doesn't work, turn off the switch or pull the plug (turn off the power, that is), and try bending up the little metal tab inside the bulb socket. We tried to reset the bulb life counter but without the bulb working we can’t see the reset screen. (Tool Needed: Multimeter) If you have a multimeter the battery charger ports Voltage can be tested. If neither of these gauges work, the fuse feed is likely the culprit. When i'm near the car, the light on the key fob blinks about once a second. Inspect the door seal gasket. 2 rear bulbs per tail light and 1 for each signal up front. Music adds value to any business, organization or digital platform. What other reasons would the light not turn on? the house is only 10 years old and there's no evident damage or anything wrong with the wiring in the recessed lighting. The electrical plug that plugs into the headlight or taillight assembly may be loose or not making good contact. It's not the bulb as we've tried replacing it with multiple working bulbs. Sometimes the wiring is bad. Some people are not aware that after you change your refrigerator water filter, there are two more steps that should be taken to complete the water filter change process. they are better then those 2 but are not good. this is a pretty good indicator of. If the bulb holder is grounded properly, the multimeter will show a constant current; if there is no ground, the multimeter will show an open circuit. Before you replace the existing bulb, give it a twist and a jiggle -- sometimes that works. Please check it out or ask our customer service staff directly; Water flowing turn signal LED light inside, good safety warning performance. Shut the car off, come back in an hour, then it works fine. This was the solution in my specific instance but there are two other possible faults which could be to blame for indicators not working. If you have very bright running lights and dim turn signals, there's your problem. Did he check that the front bulb is a double filiment, one for his running lights and one for his turn? Some times the front hand lever can use some lube, if it doesn't return all the way after applying the front brake it can keep a little pressure on the switch, he might also check the switch itself, make sure it's working the way it should. Now it's starting to look like a light string. If the hazard is blinking on one side of the car and not the other then the flasher relay is good. If there is a faint glow, you have a powered ground. Find your bulb fast and order now with next day delivery. The connector to the bulb has 3 wires. Turn signals only work when the ignition is on; hazard lights work whether the ignition is on or not. So decided to take the working bulb from the other side to try it. I checked the bulb, and it's not blown. almost gave the toyota alot of money for the wrong part 500. There are several things you can do to get to the bottom of a non-working alternator The first thing you should look to is the ignition wire that activates the alternator. To avoid another public backlash, they must make these platforms serve us not only as consumers, but also as entrepreneurs, workers, and citizens. Gear shift indicator is the only thing that won't light up. Same issue. The power that feeds the brake lights has to go through the turn signal switch first then back to the brake light bulbs. by David Wooten on. But luckily I hit this page, especially Catfishfryer's post. I've had a couple of BMWs and Audis that indicated which bulb was failing before it stopped working completely. After arriving home I checked the turn signals from outside the vehicle and discovered they were not working at all when the indicator inside the vehicle was illuminated. Symptoms of a Bad or Failing Turn Signal Bulb Common signs include the turn signal indicator coming solid, blinking very fast, and the turn light bulbs themselves not blinking. I also have a 40 amp head main that checked good. All The Dashboard Lights Flash Whenever I Drive My Dodge Charger In The Rain 3. Both right and left sides, high beams, low beams, and fog lights - all not working. It's supposed to come on for a few seconds when the ignition is turned on. My bulbs havn’t blown on my tap lamp , just can’t get this to work in MOST of the outlets in my home. I tried everything. Look carefully at the grounding points in the trunk - you will have to remove the trunk floor panel. I tried turning it off keeping power button pushed but no luck. Replace the bulb. One of the balancing circuits inside has malfunctioned. I noticed my passenger side directional not working, bulb looked good, but replaced it anyway, still no good. One pair of rear view mirror turn signal light indicator fit for VW Golf MK7 GTI 2015+. It doesn't make much sense but that's how they're wired. I've given up. Any ideas how I can rectify this or do I need to buy longer bulbs!.  The bulbs looked good but just to be sure I switched the bulbs from the left with the. A 10-minute turn signal tidy up might save you a ticket — and some embarrassment, too. If it does not make a noise it is blown. This gives the driver immediate notice that the turn signals are not working properly and need to be fixed. So, in order for this bulb to function properly in a strand (with a good filament), there shouldn't be a current going through this bypass wire. That means that both sides of the dash bulb have +12V on them and no current can flow thru the bulb. I just replaced a rear bulb and the others work fine. As with all automotive malfunctions it is best to have the vehicle evaluated by a professional, and to familiarize yourself with your car's dashboard indicator lights. After many months of service the bulb burns out. When testing an electric heating element a multimeter is the proper tool for this. I can test and repair the antenna amplifiers as well. The outer tail lights do not light up with side/dip/main lights, only the boot/trunk lights come on. by David Wooten on. Checking the Dash. Do not use any electrical switches, appliances, lights, telephones, or mobile devices, as an electrical charge could create a spark. But that was only the quick fix haha, Eventually the problem persisted and everytime it was just a pop of the bonnet and twist of the bulb holder for it to work again. That's where the 18 LED "Tower" style LED bulb. If the indicator lights up, then almost certainly the high beam circuits are energized. Your dashboard is designed to keep you informed about the health of your vehicle. An indicator light does not work. Phone didn't even boot when battery was inserted. Brake lights do not work. If the bulb IS working, make sure you check the voltage at the battery and at the alternator. Their is an aftermarket sony deck that came with the car at the time of purchase. The passenger side had a ground that was not connected. The switches work, because the emergency lights come on when I push both switches. Again, check all the connections. But you say the bulb is good and you have "power to bulb and there is current". The bulb is replaced, but the fixture still is not working. Inspect the electrical cord for damage. I opened all six outlets and found the sockets of the power outlet (hot, neutral, ground) all had good continuity to the wires themselves (so I did not change any outlets. It is an offence in law not to have all obligatory lights working. That might also be why a blown indicator bulb causes the the one at the other end of the car to flash at twice the rate. It's not the relay, the light and dash indicator blinking fast show you that the relay is functional. Please help me out. take out the battery unplug. Shut the car off, come back in an hour, then it works fine. Replace the light bulb with a new bulb that has the recommended wattage and bulb type. Oven's self-cleaning feature does not work. What is wrong if the left brake light on a 92 Cadillac STS will not work but the bulb its ok and not work but indicator light on the dash will not work, it is a good idea to check the. Just download and run it on your PC. I am surprised by how many cars I see with turn signals that blink at 160+ clicks per minute versus the accepted ~80 CPM. All the other lights are good. I've got a Dell Dimension 8400 and a 2001FP monitor. Product Feature:. Clinking sound from the relay. Well I'm a truck guy but I use it for the mechanics mostly. Your dashboard is designed to keep you informed about the health of your vehicle. If the lamp turns on and stays on you also know the bulb/LED is good. By replacement with known-working bulbs, all but one of the sockets were filled with working lights. It should be just the resistance of the green indicator bulb (10ohms - ish) pretty low. Driving Signals. The good news is that it can be done cheaply. I had a similar issue not too long ago -- the hazards worked but the rear blinkers did not. There is also a DIMMER relay, that switches between high and low. When charging below 10% it should be just red- without blinking. Occasionally the salt indicator on the Pentair Intellichlor will not match the actual salt level of the pool. As all the indicator bulbs fail to flash when the indicator is on, it suggests something which affects all circuits. Therefore, if something happens to one of these lights, it might happen to the other one as well. Just for the sake of troubleshooting, the following are conditions in which the remote start will not work:. if this does not help then you need to check for loose wiring on the left side for the brake lights. Decoding your Dashboard Indicator Lights. I just got replacement LED indicator bulbs for my car. The switches work, because the emergency lights come on when I push both switches. IMPRES Automatic Battery Conditioning. The standard runtime of most LEDs is upwards of 100,000 hours, while an incandescent bulb usually lasts for about 3,000 hours. In the event of a. Trust Pep Boy's dashboard indicator light decoder to give you the insight you need to understand what is going on with your car. When the turn signal handle is engaged, the clicking is very fast. The last check should be the running lights. My bulbs havn’t blown on my tap lamp , just can’t get this to work in MOST of the outlets in my home. And if the old one is a CFL (compact fluorescent), don't spend much time thinking, "It can't be the bulb; they're supposed to last 10 years. My Car Won't Jump But All the Lights Work. The only thing I can think of is that there is some weird difference in the bulb harness (socket) itself whereas one of the leads is somehow not making contact with the LED bulb's base? I am keen on making this work, because LED bulbs use about 1/7 the power of regular bulbs, which is great for lightening loads on the house battery. This is the most common cause of a single high beam headlight not working, but isn't common if both high beams aren't working, because it's highly unlikely that both bulbs would blow at the same time. Replaced 2 bulbs but it still doesn't work. What Dell Power Button Lights Mean. All brand new bulbs that work in other sockets around the apartment. Trailers must be equipped with running lights, brake lights and indicators. Instrument Cluster Lights Not Working was created by ZachSyndy I have a 1999 Chevy Silverado 1500. A 13W bulb is way lower than 75W. I am gonna go back to the guy who repaired my headlight after my recent accident. I started the engine and the warning buzzard and gauges did not work. It did not light up on the indicator panel either. 2 year LED warranty. com for information on the 200, 300 & Pacifica vehicles, dealerships, incentives & more. A good indicator to know what light bulb to use is also your lamp / fixture socket as in most cases you will not be able to plug in a wrong voltage bulb, so knowing the bulb base can be also helpful for choosing the correct bulb. If I were you, I would replace it first. Any other lights will help you troubleshoot the power issue you are having. -Both headlights have been replaced and only low beams work, and I bought three brand new sets to make sure it wasn't the bulbs. Other issue I had was I had to take out 2 of the 4 van brake globes The newer Rangers have a 10Amp circuit breaker. To test the speedometer indicator light, pull off the wire connected to terminal KBL, ground it to the body, and turn the ignition on. I don't know what your logic is here, but I'd say it's flawed. Usually I have to start up and drive the car for two days, and all the lights magically go off, and the cruise control works again. One day I pulled in the driveway after work and the switch was lit up so I pushed the switch and I could hear the actuator on the front axle moving but it would not engage, the actuator would move but all that happened is the lights on the switch just blink. Why Don't My Brake Lights Work? 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. Check the.