Help steering wheel shake

[Ingalls56]

I have a 2010 ss Camaro auto when u take turns slightly sharp or on high way and brake The sterring wheel will shake back and forth like if u had bad warped rotors Just did all new breaks All around still shakes car stays straight at 80 mph never hit envy thing or pot holes lookes at suspension parts all seems Good I've taken power off car To rest computer maby thing was Stab ability control Can it be The power steering /rack need some input