I know for sure the J1 is cut on mine, and If I remember correctly J3 is mounted, but not J2.
J1 is cut on mine but I think the two ends were touching. J3 mounted but not J2. And J4 looks like it has been scraped to break the contact – there is no continuity.
(yes J2 and 3 seem to be missing from circuit diag)
My MCL2AV Type 2032 is similar, but with J4 intact:
