January 17, 2007Ford installed a hidden feature for all ford's 99 and up in the speedo. If you take and push your trip reset in and hold it while you turn the keys to on but dont not started it. the trip and mileage read out will say test and then it will test your gauges and dash lights if you keep pushing it, it will give you a few read outs like codes and mph true read out + your tech read out. for more info refer to the link at the bottom.
have fun guys its a trip.