E-brake light comes on when braking

[That1guy12345]

So on the 97 the light comes on when braking hard. I cant check it since i'm at school. My gf says the fluid is just a hair below max. What all causes the light to come on?

I have had a hell of the time with the brakes. First the front pads where worn and had a caliper drag on the front passenger. I replaced all that.

Then the rears went and at the time all i could get was the super cheap pads from advance. Well a week later i started getting a horrible nails on chalk board sound when light braking and more when turning while braking. I have rebuilt the parking brake and it didnt help. I have pulled the rear calipers off several times and cant find anything wrong. I'm starting think the rear pads are crappy causing this noise. I know its coming from the rear passenger. Any ideas? Sorry for the long post. Thanks guys.

 

[That1guy12345]

Man no one knows what causes the brake light besides the parking brake and low fluid?

 

[That1guy12345]

bump.....

 

[Germ]

Possibly a leak from the brake booster?...My 99's brake light came on at random and it was due to a leak between the master cylinder and the brake booster.

 

[That1guy12345]

Possibly a leak from the brake booster?...My 99's brake light came on at random and it was due to a leak between the master cylinder and the brake booster.

That could be a possibility. I'll check it thanks. Any more ideas?

 

[swetrid]

It has to be fluid sensor/level in master cylinder, e brake switch is bad or wiring concern. I wouldnt go by what girlfriend said and would look at level myself.

 

[1AJeremyD]

I would have to say either the e-brake is one click down and is engaged, the low level sensor is bad or you have no brake fluid. Theres only 3 things that will really make that thing go off unless you have a broken wire.

 

[That1guy12345]

She changed the alternator by herself so i trust her to check the fluid. She claims it to be full. I'll check it soon as I get a chance to go back home.

So if those are the three things that trigger the light how can I test the switches with multi meter?

It probably has something to do with the sticking caliper. She is telling me it random feels like the brake are on for a few seconds and then it goes away. I think its the rear passenger caliper. I've changed everything possible back there and it was squealing bad back there randomly when braking.