Hi,
Never thought I'd ask a question about toys but my Grandson has a Fisher Price GEO TRAX that refuses to work. It has a hand held controller and the train the train lights up and the hand controller works when moved back and forth but the train does not seem to be getting the signal. I have changed the batteries but still no results. I don't know much about toys so does anyone know what I need to do?? My grandson loves it and I want to be a hero Grand Dad and repair it for him. Thanks for any and all help.

Did you change the batteries in the train and the controller?

Assuming you did this, there is another trick. My nephew has these trains too and now and then the motor inside will seize up for some reason. If you smack the side of the engine on something hard, give it a decent whack, it usually will free up the electric motor and get it working again.