My speedometer won't work and my ABS light is on

[Trexter67]

Ok so the other day I did the big 3 upgrade to my battery wires. So a little later that night I drove to the store and as I was driving through my apartment and realized that my truck was in second gear, so I looked at my gauges and my speedometer was reading 0 and my ABS light was on. I drove to the store and all of a sudden the light cut off and my needle jumped up to speed but it still wouldn't shift. I got to the store and turned the key on and off a few time. When I drove back home and it shifted like normal and it was all working fine. But every other time I drive it does the speedometer and abs thing again untill I reach enough speed and it all kicks back on. What could possibly be going on

 

[SunlitComet]

almost sounds like the vehicle speed sensor circuit is not working properly. when this goes on does the shift position indicator go out to or does it still work fine? and more vehicle information please?

 

[Trexter67]

I replaced the vehicle speed sensor and it fixed the problem