transmissions code p0700?

Is this the only code? Usually there will be more codes along with this one.

P0700 - Transmission Control System Malfunction

Can you please rescan the car, this guide can help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over this guide and get back to us.