You're right they are daisy chained together according to the schematic, but when you look at the three that are at fault, the CPS with no voltage, the phase sensor with no voltage and the ignition trigger (what ever that is) that has 3.5 volts instead of the minimum 4.5 volts it is pointing in one direction but as I said before I cannot verify where the voltage comes from so find it hard where to look.