transmission po797 & po780 check engine light ob2 code readings

Hello, these codes relate to shift solenoid issues in the transmission. They are likely coming on due to mechanical or hydraulic issues more likely than electrical issues. However, anything is possible, and diagnostic testing should be performed to determine what the root cause of failure could be. If you get lucky, you could identify a shift solenoid issue that could be serviceable without transmission overhaul and replacement. But I'd say probability is low. Still hands on testing will reveal all. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops