my dad had that problem with his 96 S-10 but he had a problem where everyonce in a while the brake would become soo stiff it was like the truck wasnt even on in the first place...almost drove into a wall when parking when his brakes did that
but his abs light and park brake light were both on and all he did was took the fuse for the abs out..his abs light is always on but the park brake stopped coming on for no reason and he just drives around with no abs