2014 Sonic RS electrical issue

[Josho]

I recently had a water leak (clogged sunroof drains) that I believe has caused an electrical issue. I have 2 lights on the dash that faintly stay on after the car is shut down. The brake light and the "eco" light. While the car is on both lights are off, unless the e-brake is up.. Its obviously draining my battery over time. I'm assuming my fuse box under the dash is corroded but it doesn't seem to be easily replaceable. I've pulled all fuses and scrubbed the terminals (not to harsh) the best I can. Any thoughts on what I should do next?