yes, if the P has continuity to X at rest than the light will be on, but it should not have continuity, it should only be hot when the flasher is flashing due to a load on L which allows the flasher to work, otherwise the power on L does nothing because there is no ground to complete the circuit .... compare the wire colors on your unit with those of the tech tip, if they're the same, the wiring there is as yours should be, you may have a bad flasher caused by incorrect wiring
edit: scroll down in the tip and you'll find the 900, 3 prong circuit, it's as I listed above, same as mine
Bill