P0700. When driving ABS light and Brake light comes on Lights on dash flicker. on 2000 Dodge Grand Caravan

The car never lost power, I reset the Code. It has not came on. But the lights still Flicker and the Guages go nuts. This occurs everytime we drive. Also the beep like the seat belt was of every once in awhile.

Asked by for the 2000 Dodge Grand Caravan