Bad front section of the Master Cylinder or a low fluid level. Bad O-rings on piston would cause loss of both front and back.
I have a 1992 Vandura and the dash brake light stays on when the brake fuse is blown. Check and replace the brake fuse if it is blown. My ABS sensor light comes on and stays on sometimes because I changed my brakes and didn't bleed the ABS system,There was still air in the line. I bled all brakes countless times, but neglected to bleed the ABS system. I own a 93' vandura....love machine
Are both resivoirs supposed to have brake fluid in them? Because the container where you refill brake fluid is as full as it is supposed to be. So are you supposed to open the cap of empty resivoir and pour directly in? My brake light came on a couple weeks ago and i also have a spongy brake pedal. Thank you, Darin
Your brakes are failing
check fluid level
Light is usually comes on, when there is a problem with pressure in brake lines. Inspect the brake fluid level, and check for leaks.
fix your brakes
your park brakes are on
As long as the red " BRAKE " light is not on in your dash you still have " normal " brakes even with the ABS light on
You probably need to change your back brakes.
In most new cars the parking brake light is also activated when the linings of your brakes wear out.
Is it the parking brake light or the ABS light? is it red light or amber?
You have stepped on the brakes