Q: Brake light comes on.

asked by on

1999 Nissan homey engine is a qd32 3.2ltr non turbo diesel. My problem is when the brake is pressed hard or 2 or 3 Times quickly the handbrake light (!) Comes on. I've bleed the brakes and changed the fluid and checked for leaks all is good. I've disconnected the handbrake sensor, it's not that. I've disconnected the vacuum sensor and it stops. So it must be the vacuum. The brakes work really well and so does the a.c..the van has no mechanical problems. the brakes have to be pressed harderor more times the higher the revs in order to get the light back on. At idle just 2 or 3 Times but 5 or 6 at higher revs. I hope this makes sense.
My car has a manual transmission.

Have you tried having a scan tool hooked up to see if there are any fault codes stored in the computer? It sounds to me like you may have a malfunctioning brake fluid level sensor or the brake system warning light is coming on for something like a malfunctioning brake light switch on the brake pedal. Consider hiring an experienced technician like one from YourMechanic who can come out and take a closer look at your warning light concern to offer a more personal diagnosis.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Brake light comes on.

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: Engine light p0171

As you may know, his code is related to a lean fuel condition which is normally related to many of the items you have listed. I would recommend checking the injector pulses to be sure they are providing enough fuel...

Q: Car starts fine, sputters even when giving it gas, shakes and dies, sometimes there's a clanging in the engine

Hi there. Sounds like the engine is not getting enough fuel as if the fuel pump is not working. The engine will start normally and then die off when you give it gas. Check the fuel pressure when the engine...

Q: Brake Lights don't work

If both of these features quit working at the same time, you may just have blown a fuse. If neither one of these are related, the problem may be two separate ones. The power locks are controlled by a...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...