kepp haveing same prob whith abs lights come brake light comes on speed odom goes crazy ' replaced sensor rearspeed on trans thought that fixed it whent 280 miles did it again got new sensor went 1256 miles did it again .whent under truck removed sensor wiped it off put back. started truck lights off run fine whent another1000miles did it again. shut truck off restarted lights out run ok so far ben 500 miles does anybody know where bad conection might be at