2nd Gen Non-Engine/Transmission Speedometer, dash warning light, general electronic glitch

[BSnyder]

Does anyone have any insight as to why after I took a hard bump with my 99 turbo diesel on a road construction milling termination that my dash and speedometer are acting goofy? My ABS dash light and my emergency brake dash light remain on. The speedometer works at times while at other times it either gives an erroneous reading or no reading at all. When the speedometer isn't working I've noticed the automatic door locks don't work properly till the speedometer has a reading, and the compass will freeze till the speedometer has a signal. I've checked some of the connections like the 2 in the left wheel well and the 3 on the transmission and the one on the rear differential which is where I believe the problem may be. Is it possible this sensor is bad? What have I missed? If anyone has any suggestions I can sure use the help! Once again "THANKS IN ADVANCE" for all the help!!!!! and Thanks again to all of you who have offered help with my past posts they have always resolved my questions and problems I don't always get time to reply back. Brad