Cycling the ignition may clear the codes. See the thread linked below. I will look into this more. I do not think your BCM got wet, so hope it is salvageable.
https://www.corvetteforum.com/forums...trusion-2.html
EDIT: Since the codes are identical to what you had before, I think they may be stored (latent) codes. I found several threads online suggesting a few cycles of start car, turn off, wait a few minutes and repeat may clear the BCM.
Also, see this video. If you have this BCM in the trunk you need to check it for water damage: