Dashboard brake light

[johnbendik]

What causes the dashboard brake light to stay lit when the engine is running and the emergency brake is off?  Is it a pressure check on the brake hydraulics?

I just replaced my front calipers and rotor and bled the front brakes.  They seem to be working (kinda), but the pedal goes almost to the floor before there's any braking action, and the dashboard light stays on.

I tried to be careful not to get air in the lines going to the back brakes, but it's certainly possible that I did.  Could that cause my symptoms?

Thanks to all,
JB

[maddog]

anytime you replace a brake component that has fluid in it you have to bleed all the brakes otherwise you're never going to get all the air out because the tricky thing about air it will move to lines you didn't mess with and with the eagle system you want to start at the driver's rear go to the passenger rear next then the passenger front and then the driver's front because the eagle rear axle is backwards as far as brake lines go

[AMC1]

That light is working properly. It is a dual function light. It not only tells you that your emergency brake is applied but also if there is a difference in brake pressures between the front & rear lines. Your foot going to the floor indicates you have air in the lines. Even after bleeding the brakes properly that light may stay on due to the differential switch in the Combination Valve staying stuck. Sometimes that switch can be moved & the light will go off by slamming your foot into the brake pedal a few times.