can someone tell me why my abs is always on, even my brake lights stays on....help!!..i have a 2002 chevy s10 zr2...

if your brake lights stay on all the time it could be stop lamp switch. that would also cause the abs light to come on.

Most times the brake light is on for the simple reason that the ABS light is on. The ABS light on an 02 s-10 9 times out of 10 one of or both of the front wheel bearings are bad jack up the front end grab the tire at 12 and 6 o clock and shake if it moves the bearing is bad. Its pretty common of s10s my cost is about 104$ yours is probably around 200$ but see if someone can read the code see what the computer says get the code and tell me what is that helps tremendously! But like i said check the wheel bearings thats my advice.