Shut Off Valve Testing Toyota L

How to test shut off valve if it's working is easy.
You need to check the electrical lines if there is current. How?
Switch on the key and test the wirings connected to the shut off valve if there is current.
If there is none check the fuse for the shut off valve
If the fuse is good then check the wirings, the connections from the ignition to the tip of the shut off valve.
If the lines are good but there is no current on the tip of the shut off valve, maybe some thing is wrong with the connection. Check the wirings connected to the tip of the shut off valve, it might have been disconnected by corrosion.
One way to check the shut off valve is to remove it from the injection pump and manually check it as I have done in the video.