This is for the xf260 it does not have any wires going to the doors and communicates over hs can left module has 2 lives right has 2 negitive so think this is how it tells which is left and right and has a local can between them both
As far as I have worked out
Left
Pin 1 and 2 local can
Pin 3 live
Pin 4 n/c
Pin 5 negitive
Pin6 and 7 hs can
Pin 8 live
Right
Pain 1 and 2 local can
Pin 3 negitive
Pin 4 n/c
Pin 5 negitive
Pin 6 and 7 hs can
Pin 8 live