My brake light work sometimes and sometimes they do not. Had bulbs checked and they are fine. Could it be the brake switch fuse?
My car has 250047 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
The most common problem is the brake light switch not making contact sometimes. The brake light switch is powered from the fuse and goes to the turn/stop module then to the brake lights. I recommend to test the brake light switch for power in and out when pressed next time it’s not working to see if the switch is bad or not. A mobile mechanic can come to your home or business to inspect your brake light issue and replace the brake light switch if it’s deemed the best path to repair.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
On most vehicles, the tail lights are red and the brake lights are a more luminous red. Your rear lights also include back up lights, which are white.
A third brake light provides an extra signal to distracted drivers—and studies confirm that it reduces automobile accidents.
Bad Switch: One common reason for the Parking Brake light to stay on is a failing or failed switch. This can be checked easily by jiggling the handle after it is down. If the light turns off (or turns off and then back on), the switch is the most likely culprit and will need to be replaced.
The majority of modern vehicles have three brake lights: two on either side and one in the centre. It`s really important that you check yours are working regularly, as faulty brake lights can cause accidents.
Most vehicles are equipped with three brake lights: left, right, and center. The center brake light is typically known under different names: center-mount, high-mount, or even third brake light. Brake lights fail for many reasons, often because there`s a burned bulb causing one or more brake lights to be inoperative.
Usually, you can find it installed inside the back glass of the vehicle. It can be located in the car`s deck lid. For a few trucks, the third brake light may be located on the spare wheel carrier.
The third brake light is officially called the Center High Mounted Stop Lamp (CHMSL), because the government is too serious to call it something awesome like the Cyclops Light. It became required lighting equipment on new cars in 1986 and light trucks in 1994.
This is the most typical cause of your brake light becoming illuminated on your dashboard. The parking brake sensor will activate the brake warning light if the parking brake is still engaged. This occurs when the vehicle parking brake is not entirely disengaged, and the answer is to disengage it.
It illuminates to show that the parking brake or emergency brake is engaged and must be released before driving. If it remains lit after the parking brake is released or if it turns on and off intermittently while you`re driving, it means you need to add brake fluid.
Excellent Heat Dissipation: 7443 brake light bulbs are built of lightweight and high-strength aluminum alloy to keep cool and extend lifespan. Even if used in constant-on applications like daytime running lights, they still illuminate non-fading brilliant red light with stable performance.
The most important car lights are headlights. The two types of headlights are low beam and high beam, which allow drivers to see the road in the dark and make themselves visible to other motorists.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
When I put my foot on the brake my back left brake light goes off, when I take it off the brake the brake light comes on
I would suggest trying to disconnect and reconnect the wiring to the rear lights. I have seen these older Toyota vehicles rear lighting short out on the lights themselves due to the way the light circuit was made on the lamp housing. Look at the housing circuit on the light to see if one is touching another, and that could tell you why it is malfunctioning. There could also be a problem with the brake light switch. If you are not comfortable dealing with wires, I recommend getting in touch with a certified mechanic who can look at your brake light issue for you to see what’s going on.
EPC light on 2004 Jetta. Code said brake switch faulty, but brakes lights worked. Replaced brake switch, now no brake lights.
Hi there. The first thing that pops in my mind beyond of what you have listed is perhaps the electrical harness attached to the brake switch. Perhaps the harness itself is damaged or you have an exposed wire, loose ground wire somewhere. You might want to have a professional mobile mechanic come to your location and complete a brake lights not working inspection to help you diagnose this issue.
Brake lights are not working. replaced brake light swtch still no brake lights. the third brake light the connection was melted at
The first thing to do is to repair third brake light and replace the brake light fuse and then see if the third brake lights work and the lower lights start working? If only the 3rd brake light starts working then you may need a further checks on the turn signal flasher or switch could be bad.
No dash lights, back right tail light is out, no parking lights. Brake lights work though as does head lights.
Hi there. In many cases, when you have electrical problems like you’re describing, it’s caused by multiple electrical component failure. It’s likely that a few electrical relays are not working; especially if you have systems that utilize the same components (such as your brake light and tail lights). I would recommend having a professional mobile mechanic come to your location to complete an electrical problems inspection first, so they can pinpoint what is damaged and recommend the right repairs.
Abs light, emergency brake light, steering wheel assist light, engine light, EPC light, traction control light
Hello, thank you for writing in. The vehicle does utilize a lot of the same sensors for these systems. Are there any other codes that are coming up when this code appears? If so you will want to take these into consideration when processing the repair and making a diagnosis. The module may be bad, and replacing it should fix the problem. The lights should turn off once the main computer recognizes the new module and the sensors sync up. If you believe the sensors need to be cleaned you may do so. Do as minimal as possible to make sure you are not damaging the sensor or disrupting the wiring inside. A bad connection would make the lights stay on. With so many lights that are effected by the module being illuminated, the module is likely bad or does not have a connection. Check the connection first and then resort to replacing the unit. For more help with these electrical tests, contact our service department.
Brake sensor is to sensitive causing brakes to flicker while driving. 2005 Mercury Montego
Hi there – your brake light switch needs a minor adjustment. It is adjusted too "tight" or close to the brake pedal lever, or possibly has failed. Adjusting/replacing it will eliminate this flickering problem. I recommend a brake light isn’t working inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.
I have no brake lights and third brake light I have checked all fuses and brake pedal switch and the switch is fine and I’m still
Hi there. Well, you’ve listed most of the usual suspects including the brake switch, fuses and tail light assembly. However, one item you might want to also check is the accessory electrical relay. In some cases, the relay that supplies power from the brake switch to the tail light assembly will cause the issues you are describing. I always recommend that home mechanics purchase a service and repair manual for their vehicle to have a schematic accessibly, so it might benefit you to purchase one online to locate this relay or feel free to have one of our mobile mechanic some to your location and complete a brake light inspection, so they can help trace this issue for you.
I replaced the brake light switch. Gear lever unlocked because it had locked. Now the brakes feel hard.
Hi, thanks for writing in. You need to check the brake switch install adjustment. You may have the switch adjusted too tight and it is holding the the brake pedal partly down. This will cause the brake master cylinder to not release the brakes when you let off the pedal. Readjust the switch away from the pedal until you feel some free play again in the pedal. This should fix the problem. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.