Shift Lock
A shift lock prevents an unintended gearchange.
It is possible to only engage a gear with the brake applied, except that when shifting from Reverse to 1st or 1st to Reverse, shifting may be accomplished if the car is not moving for a time period of approximately 2 seconds.
The two seconds enable a rapid shift from position "R" to a forwards gear via position "0" without having to depress the footbrake.
The shift lock is activated by a magnet, which locks the selector lever at zero current in the "0" position.