Switch has an input...that is power from battery via ammeter.
Switch has two OUTPUTS.....IGN and ACCESSORY are typical
Power passes thru sw from input to the IGN & ACC depending on which position key is rotated & power is only on the input & does NOT pass thru sw to any/either output when in OFF posiotion.
You can map out each position connection by removing sw from tractor & sitting down at the table with an Ohmmeter, sw, piece of paper & pencil & playying for a few minutes. If you don't have an ohmmeter, then a battery, wire, light bulb is a good substitute. Think of it like the "Y" adaptor you put on a water faucet so you can connect two hoses....it allows you to output water to either/both or neither.
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