Scanner will not connect?

Hi all, wife drove it to the store and shut it off. Came back out and it won't turn over. Dash lights up, radio works, etc but won't turn over. I went over and pulled the battery and charged it, still nothing. I then tried to put it into neutral to push it back and it won't shift out of gear. I do know how to push the release button so I can get it into neutral. I plugged in my scanner and it won't communicate with the computer. It powers up but says it can't connect. I did try the scanner on another vehicle and it worked fine. Also the check engine light does come on.