2004 Dodge Ram

I have a 04 Dodge Ram that when you start it up and start driving down the road the brake and ABS light will ding and stay on. Also the speedometer now bounces as you accelerate and decelerate. These problems just started this past weekend and has not done this prior to this past weekend. I am looking for suggestions to rectify the problem. Thanks.
December 10, 2006.

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