Just checked my '91RT, Park lights come on at 2nd switch position, 4 way flashers can only be turned on at the "Start" position (headlights on also), when you turn the switch back to the park position, 4 ways and park lights both on, when you turn the switch to off position, the park lights go out but 4 ways still operate (key out). Think Inge is on the right track, start looking into the ignition switch for problems. I do not have a separate switch to turn on headlights, they come on automatically at start position, and are on as long as the machine is running, but definitely off when switch is off whether the key is in the switch or not...