Set accordion item default state (open or closed)
Divi Accordions Plus module allows setting the default state of each accordion item individually.
To set the accordion item default state (open or closed) open the child module (accordion item) settings by clicking the gear icon.
Find the Active setting under the Content tab -> Item State toggle and set it either to ON(open) or OFF(closed).
This will set the default state of the accordion item on page load.