The circuit board you are referring to, does it have fuses? If so I would check those. Also if it got wet I would check all of the connections for corrosion. My 2015 has something similar in the compartment with the water pump (seems like a really dumb place to put that). That may be your problem.
Retired Fire Dept Battalion Chief
2016 Ever-Lite 232RBS
2012 F150 FX4 W/Max tow & Ecoboost
Getting old ain't for wimps!!!