In my SW-T600 when kill switch is on, fuel pump does not activate. Setting kill switch to off, fuel pump activated and HISS light and engine light come on for about 2 sec. This way you can test kill switch.
There is two sensors CMP sensor and a CKP sensor. I think both send infos for ECM.
This sensor is installed to cylider head 36140MCT003 , and other is under alternator/generator 30300MCT000. You can test these with multimeter. While cranking scooter, you can read 0,3-1,0 AC from multimeter.