brake problems..(warning light)

From what I remember the warning light can be lit from 2 places.
1. The switch on the parking brake lever.
2. The wire running to the proportioning valve.
From what you describe of the issue, it might be the prop valve. When you push down on the pedal, the valve is trying to move..that's why the light will flicker...now where did I put that "how to reset the proportioning valve" doc...hopefully someone will have the procedure, cause there's no way I'll find it now that it's needed :lol: