Ok, so I know where the confusion is now:
Item (8) in Diag A is called the Door Opening Control Plate (Part: 6138V2). In Diag B, this is actually shown as item 14.
Item (1) in Diag A is the Hinged Rear Door Lock and is shown as item 15 in Diag B.
As for the cables, these are deceiving and I've showed these in green and red.
So part (8) Diag A, or (14) in Diag B has only one cable that I have shown by a Red line. This corresponds exactly to the parts diagram.
It is item (1) in Diag A or (15) in Dag B that has 2 cables that connect to (1) where I have shown with green lines.
So if you look at Diag B at the bottom green line, I suspect the cable missing is in fact from item (15) where it goes from the lower green line arrow head and behind the connector at 'g' up to the mechanism. In other words the cable in red I have circled (in the diagram below) has come away or snapped, and is missing. But it should be part of item (1) the hinged lock.