Skip the auto shop - Our mechanics make house calls

Q: When replacing the brake switch, why would the 3rd brake light work and not all 3?

asked by on

When replacing the brake switch, why would only the third brake light work and not the other two

It is possible that both of the brake light bulbs are out. It is also possible that the other two brake lights are on a separate fuse from the third brake light which could cause the third brake light to work separately from the other two. I would recommend having a certified technician take a look at a wiring diagram to see the brake light circuit layout. This will help the technician to determine the cause of the brake light issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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. When replacing the brake switch, why would the 3rd brake light work and not all 3?

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: OK the other day I had a bad blow out and took out some working it's all there and some connected still but my car isn't starting

Question sent to CS for having someone view your vehicle's condition after a blow out and tearing out some wiring to the headlights.

Q: My brake light is still on, but my brakes were just redone, why is that?

Hello, thank you for writing in. The brake warning light on the dashboard can be triggered by any sensor or electrical issue in the brake system. The best way to narrow down the possible issues is to have the diagnostic...

Q: I have a uno and there is a knocking sound coming from the front left hand side, it only happens when I turn slightly

Hello. Thank you for writing in. The vehicle may having issues with the steering and suspension components, or it may be have something in the way. The first thing to do in this situation is to perform a basic visual...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.