You, at least, need a new accumulator as soon as possible. You may have a fault in your brake pump. Please get this checked before you lose your brakes completely. I'm not joking, it's a possibility.
If pump comes on every time you brake accumulator needs replacing. ASAP. See what you have after you do that. Pump should not make a loud noise maybe it's getting tired.
I did not have the lights but the pump would run after every press of the brake pedal, new accumaltor fixed it pump runs every 3 to 5 brake applications now.
