2001 Dodge Caravan not sure if this is electrical or transm

I have seen this happen and it was usually a computer data problem. The van uses many and they use information from the vswitch on your transmission to light the proper selection. The only way to test it is with a scan tool. There is a plug that connects the gear selector switchb to the trans controller, that may have come off, but theres a few things involved, its best to bring it in to a shop, see the 'site menu', it tells you about how it works. Your trans is in limp in mode(2nd gear only). Hope its nothing big. I doubt it.