Tue Jun 10, 2014 5:32 am by mercurial
I am not at all familiar with the lock cylinder used in that car, but speaking in more general terms, there is an equivalent of sorts to security pins that can be employed in sidebar wafer locks.
The wafers can have false gates/notches in them. They are deep enough to catch the sidebar, making it seem as if the wafer is set, but they are not deep enough to allow the sidebar to enter far enough for the plug to turn fully.
In wafer locks that lack a sidebar, the edges of the wafers can be serrated, so that they catch at the plug/shell interface. If the serrations are deep enough, you could end up with a 'false set', where the plug turns slightly - as occurs with security pins in a conventional pin tumbler lock.
...Mark