Driving my 2002dts abs,break light came on car stops why?

Hello, This is likely related to a failed ABS sensor at one of the wheels. If the ABS system thinks the vehicle is skidding because one of the wheel sensors is failing, it will prevent acceleration and brake the other wheels. As for the shutting down part, that will require scanning with a professional diagnostic scan tool to identify the issue, and since they occurred at the same time, it may be related to the vehicles communication system (CAN).