ok i have cheaked my brakes and they are all fine but my brake light is on some one told me the it may be my ABS system sencor down by my wheel because it only come on when i take off from the light or when i turn a corner then when i hit the brake th elight will go off but now the light just stays on what could it be

97 contour sport homemade intake 2.25" pipe from cat back to stainless muffler superchip painted front grill on order 1.8" intrax springs NOS kit and 17" rox RX4 rims