Was troubleshooting interlock system 99 regal. Slaved in a used switch for brake light/ interlock, no help. What is second switch at brake pedal with single wire to it? the one with 2 plugs is brake light/ interlock correct? maybe second one is cruise? Anyway once you manually unlock shifter once and don't shut car off you can shift in and out of park all day until you turn car off, then have to do it manually again. Any help is appreciated.