hello this is a automatic isolation switch please help

Hi akisarion,
In my Knowledge i will suggest you to use Digital Multimeter(DMM) in continuity mode if your task is to draw the Schematics from the Layout (Assembled board), First of all we should know where are those wires are soldered with Black cable (if i'm right)?
Secondly the end of brown wire may go through a PTH(Plated Through Hole) so at the bottom side of the board u probe with DMM for continuity.
 
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