The second part of the code is located in the Savings & Loans building which is also where the vault itself is. You'll also need to use essence to open the door to this building. Image credit ...

Per PC Gamer, Fallout: Vault 13 co-lead culinwino shared a message ... At the very least, the fact that culinwino has left ...

To open the vault, head to the bank and into the room on the left hand side, then interact with the vault to be able to enter the six-digit code. Once entered correctly, the door opens slightly ...