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! 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'' 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.... 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