Clutch safety switch voltage range (WOT box)

[AntiFederalist]

WOT box stopped working last year and I decided to get it working again. Its range of voltage is only 0-5 volts for the clutch pedal safety switch, so its stuck reading 5v no matter what i do, while my switch now reads 5v to 10v using a volt meter. Having the box completely disconnected my clutch switch still reads 5 volts up and 10 volts down. Car starts with clutch pushed in and doesn't start with it up like normal. Not sure how the voltages would double but car functions fine. Ideas?