Brake Warning Light.

[Mustang5L5]

The Brake Warning light receives its input from two sources. The E-brake handle and the low fluid sensor in the Master Cylinder correct??

Reason I ask is because today I was out driving in a "spirited" manner and decided to come off an onramp and brake hard from 60MPH to a dead stop. Halfway during the stop the Brake Warning light came on and lasted until 1 second after i came to a stop. The ABS light did not come on at all.

Obviously the E-brake didn't get pulled so i am just thinking the fluid in the reseviour was sloshing around and tripped the low fluid sender. The Brake light doesn't tie into the brake system in any other way correct?

I checked the fluid level and it was filled to the line. Pads are halfway worn down.

 

[ponysarepretty]

That reminds me... although ABS is working, I have never seen a light flash...

 

[Mustang5L5]

Its not supposed to flash, only when you start the car and when there is a problem with the ABS

Just the T/C light flashes when it's in use

 

[ponysarepretty]

Oooo... thats good then

 

[topless98gt]

That reminds me... although ABS is working, I have never seen a light flash...

I thought the ABS light was supposed to come on, too. I went driving on ice (I know, I know...big no no, but I had to try it!) and I was doing like 5mph and slammed on my brakes and my car just made a weird sound. It also happened when I was at a 3-way stop sign and the person ran it and I passed them honking and they rolled down their window and said "You're such a gentleman!" Please note that I stop ALL THE WAY at stop signs. They ran the damn thing. Anywho...I slammed on my brakes and I was on stop of water and my car made a weird sound. I hope my ABS works!

 

[Mustang5L5]

The light is not supposed to come on when you are using the ABS.

What is supposed to happen is that the car will make weird grinding noises, and you'll feel the pedal vibrate. That's the ABS at work.

 

[bdcardinal]

the ABS light only comes on on initial startup or when thre is a problem.

 

[03ghoststang]

yup all those reply's are correct the ABS light comes on at start up and when there is a problem.

When the ABS is activated the pedal vibrates and you'll feel the car like its trying to lock the wheels but its not


I dont know what would've triggered that Brake light though other than the obvious the e-brake is on or the fluid level is low

 

[sgarlic]

That's pretty weird. You'd think with a full reservoir, even hard braking shouldn't trip the sensor.. perhaps there's an air bubble in there that came out or something during your braking.

 

[Mustang5L5]

That's pretty weird. You'd think with a full reservoir, even hard braking shouldn't trip the sensor.. perhaps there's an air bubble in there that came out or something during your braking.

Well that's just what i want to confirm. I want to be sure there are no other sensors connected to the Brake warning light. As far as I know, that light is lit up by the e-brake or the low fluid sensor.

I mean it must be pretty rare for an 90% full MC to slosh around in some way to set the light off for 3-4 seconds, but i guess it could happen.