Hello Duke1098, thanks for your question in the autoaid Community.
This fault Code means: P0620 -Powertrain Generator Control Circuit
Check if your Generator loads the Battery, if there is already okay, erase this Code and Check if it comes again.
I think that this faultcode comes from your Ecu with his internal errors.
You could check the wirings to the Generator and the Battery.

Greeting
Team autoaid