Just picked up a 93 Eurovan that was non running for a few years. I was able to get it running and runs great. However it does not shift and appears to be in a limp mode as all gear selection lights are on and seems to be in 3rd.

My questions to start trouble shooting is to see if there is a reset? Does it the TCU/TCm need to be reprogrammed as it has sat for for so long.

I do not want to start down the trans replace until I can confrim it is bad.

Thank you