intermediately the abs, traction control, brake lights come on any help Please!! on 2004 Pontiac Grand Prix GTP

I have taken to autozone and they ran scan. All the sensors are good. Condition comes and goes but starting to stay on more frequently. Notice power steering doesn't seem to be working when lights are on. Gas mileage gets worse also. Any help would be appreciated...

Asked by for the 2004 Pontiac Grand Prix GTP
auto zone cannot scan abs module,have a mech scan the abs and traction modules for codes and post