Welcome.
You might find "demon works" youtube channel worth a scrolling. He might have something on the procedure.
https://youtube.com/@demonworks?si=6_3wb58NvtshT8wm
I bought the launch on Amazon.
https://www.amazon.com/gp/aw/d/B0B4MJ5NK6?psc=1&ref=ppx_pop_mob_b_asin_title
There isn't much info on the shutters in the OM.
With a bidirectional scanner, like the launch, you can command the shutters open and closed. If the fuse is blown or if the ecu...