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Why do brake lights come on with ignition and not work on pedal?

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2005-07-04 16:06:07
2005-07-04 16:06:07

The brake light switch is either out of adjustment or defective.

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Look under the dash on the driver's side, half way down the brake pedal. When you depress the brake pedal, the pedal moves away from this switch, which allows the brake light pedal circuit to complete, and your brake lights come on. This brake light switch is always hot/on, as required by federal law, so that even with no key in the ignition, if you hit your brake pedal, the brake lights will come on.




Under the brake pedal is a brake light switch that when you press the pedal it hits it and makes your lights come on..sometimes when they get weak the pedal depresses them simply from the weight of the pedal and they stay on..Have a friend get inside the truck and pull UP on the brake pedal as you look at the lights..if the brake lights go off when they pull up on it..then it is that switch under the brake pedal



Is it when the ignition lights on the brake lights are stuck on? If so adjust the brake light switch at the pedal.hope this helps Answer: Its the park lights. The vehicle is probably in park.


just as the name it makes the brake lights come on when u press on the brake pedal


Check rear bulbs, rear brake bulb fuse, and check the swith on the brake pedal.


CHECK the brAKE LIGHT SWICTH ABOVE THE PEDAL ANOUT 10 inches ,by chech see rear brake lights work. CHECK the brAKE LIGHT SWICTH ABOVE THE PEDAL ANOUT 10 inches ,by chech see rear brake lights work.


It sounds like a problem with your brake light switch that is mounted on the metal arm of your brake pedal under your dash. I'm not a mechanic but I've wondered if the brake fluid level is low in the master cylinder in the engine compartment, does that allow the brake pedal to drop enough to allow the switch to turn on the brake lights ? I know that if I get my head down near the brake pedal, and push the pedal with my hand I can hear a loud click noise when the brake lights come on.


Sticking Brake LightsI had this very same problem when I owned a Nissan 300zx. There is a switch in front of the brake pedal that when the brake pedal is pressed the metal part of the pedal presses down on a little button which turns the brake lights on when pressing the pedal. What I did was I got under the dash, took a flashlight and put a little piece of tape in between the pedal and the switch. It acted as a cushion because the pedal wasn't pushing down on the switch as it was pushing on the tape and when I pressed on the pedal the lights would come on but the tape pushed the pedal back to shut the switch off. If you want to avoid all this consider having your brake pedal adjusted. If your brake lights come on still consider having your cars wiring checked out.


Check fuses first but its probably the brake light switch under the brake pedal.


The brilliant red stop light will come on


THE BRAKE LIGHT SWITCH IS NOT PUTTING OUT BATTERY WHENEVER THE BRAKE PEDAL IS PUSHED DOWN. CHECK TO SEE IF BRAKE LIGHTS COME ON WHEN BRAKE PEDAL IS PUSHED DOWN. IF BRAKE LIGHTS COME ON, THEN YOU SHOULD BE ABLE TO SHIFT IT OUT OF PARK. IF NO BRAKE LIGHTS, THEN IT WON'T SHIFT OUT OF PARK. IF THIS IS THE CASE, THEN REPLACE BRAKE LIGHT SWITCH.


Usually in every vehicle the brake lights come on when the brake pedal is pushed in. There is a switch connected to the pedal in some way to make the light switch on.


Please re-phrase your question; it appears you are saying the brake lights come on when you push the brake pedal and the lights are working (normal operation). If the lights are staying on after you release the pedal, then the problem is with th brake light switch (sticking). Thanks Malcolm


You need to adjust your brake light switch. It should be located on the brake pedal. Unplug the switch and loosen the nuts to adjust the button closer to the brake pedal.


You may want to start with the brake fuse. If you still have turn signals and lights. you may also want to check the brake electical relay switch in the relay box Check as well the brake switch located at the brake pedal.


Sounds like you have a problem with your brake light switch under the dash, mounted on your brake pedal metal arm assembly. I know if I get my head down near the brake pedal and push the pedal with my hand I can hear a loud click noise when the brake lights come on. I'm not a mechanic, but I've wondered if the brake fluid level is down in the master cylinder, does the brake pedal drop enough for the brake light switch to turn on the brake lights ?


There is a switch under brake pedal. This switch controls the brake lights. They some times go bad. Have someone stand behind vehicle while you push on brake pedal, if no brake lights come on. Try pushing the brake switch by hand. Check for power with a voltmeter.


It turns the rear brake lights on as a safety feature. The brake pedal is pushed in, causing the fluid to move forward in the brake cylinder,activating a brake light switch. Even if the vehicle is off, the lights will still come on.


I'm not exactly sure which fuse it is, but it doesn't sound like a fuse to me. I would check the switch on the pedal, just simply short acrost it from terminal to terminal with a screwdriver, if the brake lights come on, the switch on the pedal is bad, if they don't then it probably is a fuse.


The most common cause for your brake lights staying on is the switch in the foot brake pedal. If it comes loose or is broken. Check the brake pedal assembly, if it has come off it will be hanging about by it's wires or may just be loose. It's a normally closed switch which means it works the opposite way round to a normal switch. IE. ON when not operated and OFF when operated. The brake pedal normally sits against the switch which keeps the circuit open and hence the lights are off. When you press the brake pedal, the switch is released, circuit is closed and the brake lights come on.


If by 'controller' you mean the switch that makes the brake lights come on, it is not in the trunk. It is located underneath the dashboard, next to the brake pedal.


Check fuses for brake lights. If your brake lights aren't workings the truck will not release the parking pin as it needs the signal from the brake switch on the pedal.



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