The switch side of the resistor has battery voltage (or close to it) on it in RUN. The coil side of the resistor will have several volts less, in RUN. Put a meter on it.
If all you have is a test light then disconnect one side and the side that lights up in RUN is the one you want.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
