Try taking a look at the attached...it's a simplified version of a starter circuit.
If you can look at this and read through my last reply you hopefully will be able to see what I was on about.
If you follow the flow of electricity from the ignition switch to the fuse box through the starter switch to the solenoid, all that you are doing is looking for 12v being there from the starter button to the solenoid when you press the button.
It shows how the low & high current circuits work separately and meet at the solenoid which is just a heavy duty switch operated by the low current circuit.
Andy
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