Q: Horn and brake lights not working

asked by on

The horn and brake lights don't work.

Hello. The issues you are having are likely being caused by two separate things, but it is possible that shorted wiring is affecting both. A technician can examine the brake pedal switch, and also test the voltage coming to the horn. The brake pedal switch controls the on and off function of the brake lights. It should make contact with the brake pedal and trigger the brake lights, but over time the switch will loose its ability to make contact.

I also recommend having a technician test the voltage to the horn. If the horn is receiving voltage but not working, the horn itself will be your problem. If it doesn’t receive voltage, the technician would then have to trace the voltage to see where it ends and where it begins. The voltage could be interrupted by a blown fuse, electrical short or faulty horn button. If you need further assistance, I recommend you have a mechanic, like one from YourMechanic, inspect for possible electrical problems and make the repairs needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Horn and brake lights not working

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car horn not functioning properly.

If the cars horn is not working the most likely cause is the horn itself. Although it could also be wiring, blown fuse, or a bad switch on the steering wheel. First check the fuses as they are easy to...

Q: When should I replace my tires?

It’s important that you keep a close eye on your tires so that you can replace them when necessary, before they become a hazard to your safety. Here’s what you should look for that may indicate you need to replace...

Q: How can I reduce the glare in the rear view mirror?

Reducing the glare coming from the rear view mirror makes it much safer to drive after night. Adjust the lever at the bottom of the mirror to change from normal position when pushed back to the anti-glare position when pushed...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.