Ok, what you are describing is caused by a irractic wheel speed sensor reading. this can be caused by a bad wheel speed sensor which is part of the hub bearing assembly. but since your problem happens while turning sharp, this almost always a bad wheel sensor wiring harness. in the front of the vehicle, there are two speed sensor harnesses, these harness run along the frame and across the lower control arms then attach the speed sensors in the hub bearings. when you turn the wheel in one direction or another, this causes the wiring to flex and move, over period of time this causes the wires to break and causes high resistances. in short one or both of the front harness will need to be replaced. these harness use a special wire and cannot be repaied with normal wiring. harness are not to expensive, cost 75.00 each. the bad part, you need a high end scan tool that can read data to know which one of the front harnesses is causing the problem