answersLogoWhite
Headlights Tail and Brake Lights
Chevy Suburban
Ford Expedition XLT
Ford F-350

What causes the brake lights to fail when all other lights are working fine?

567

Top Answer
User Avatar
Wiki User
Answered
2011-03-10 01:39:17
2011-03-10 01:39:17

The BOO (Brake On/Off) Switch may need to be replaced. If it is bad, it would cause the brake lights to NOT illuminate when the brake pedal is applied.

001
๐Ÿฆƒ
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0

Related Questions


Check the brake light bulbs, Check the brake light fuse, Check the brake light switch, In that order.



I tried all the fuses, the parts that under the brakes I checked that. All lights come on and working except the brake lights no break lights.


Nonfunctional LightsI'm not familiar with your 2002 Gran Prix, but the problem you describe is universal to all vehicles.The fact that the "third" brake light [in the rear window package tray] IS WORKING, indicates that the brake light switch IS WORKING properly!!!!!That suggests that the reason that the other two brake lights are not working is that there is an "open" condition in the wiring circuit to the other two brake lights. This is confirmed by the fact you replaced the lamps [bulbs] in those other lamp holders with known good lamps.There could be several causes for an open circuit, but the most common include:One of the connector plugs in the wiring harness to the brake lights has become disconnected, orCorrosion has built up inside of one of the connectors [one that feeds both brake lights, which will be in the circuit "ahead" [upstream] of where the wiring harness "splits" off between the two brake lights].Very remote is the possibility that the ground wires on both light assemblies has been disconnected, cut, or corroded.


Possible bad switch on the brake pedal? When you push on the brake pedal, it activates a switch, that switch turns on your brake lights. If the bulbs and fuses are ok, check the switch with an ohmeter.


I just had my Daewoo Leganza brake light switch replaced. It goes under the brake pedal. and now my brake lights work fine.


for the tail lights all the other lights are working blanking lights brake lights and reverse lights but no tail lights on both side


Brake lights often use a dual-filament bulb. If this gets inserted the wrong way other functions can suffer.



Brake Lights Don't WorkThe brake lights and turn signals are on a separate circuit of their of their own and thus independent of the tail lights and side marker lights ["running"] lights.There could be several causes for this problem, and without being able to see and troubleshoot the brake light wiring circuit no one can tell you the specific cause.Some of the possible causes include:Brake light switch is not adjusted properly.The fuse for that circuit is "blown" out.A wiring harness connector anywhere in that circuit has become unplugged, or loose.The ground wire or wires for that circuit have become disconnected, or the connection of the ground wires to the vehicle's grounded body sheet metal has been blocked by corrosion.A wire in the circuit has been cut, broken, or pulled loose.The brake light switch has become defective.There are probably a few other causes I have forgotten about.


possibly the fuse for brake lights......also could be brake light switch----turn signal switch----broken wiring anywhere in the vehicle---relay not working ---any other item specific to your venicle.


Blown fuse, both lights are burnt out, There is a wiring or ground issue.


Brake Lights that Will Not Turn OffAlthough it's possible there could be other reasons, the most common causes for brake lights to stay on continuously include:The brake light [if mounting position is adjustable] is out of adjustment, orThe brake light switch contacts are fused ["welded"/melted] together, orThe brake light switch is otherwise defective.


The presumption is that if you were rear ended, the other driver is at fault. The brake lights not working is a mitigating factor, but the bulk of the blame still goes with the other driver. Insurance doesn't have any relation to fault. But it coculd get you a ticket.


It probably indicates that both your other brake lights are burned out and need replacing. BTW: It is illegal in most (if not all) jurisdictions to drive this way.


you probably need to lift up on the brake pedal a couple of times to reset the brake switch. worked on our 86




change the brake lights check the fuse check the brake light swtch


If it is the tail lights, it is the headlight switch. If it is the brake lights, it is probably the brake light switch. I really don't know how to replace the bulb in the 3rd light. change the brake light bulb first it may be shorted causeing the other problem


Look for a fuse labeled TAIL LIGHTS. There are 2 separate circuits, one for brake turn and flasher and the other is for tail lights.


The bulb is burnt out. If the problem was a fuse, then all brake lights and probably the dashboard lights would be out as well.


If your brakes lights are not working and all of your other lights are OK try replacing your "brake stop switch". You may have to have either your local auto shop or local dealer replace the switch because it's hard to do yourself. I had the same problem on my Tahoe and replacing the brake stop switch solved it right away.


The brake lights are a separate circuit from the other lights. Check the fuses and bulbs. If fuses and bulbs are okay I would suspect the brake light switch is at fault.




Copyright ยฉ 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.