Hmmmm. Not really sure... but my reading of the document is that there are "Hall" (Magnetic) switches in the EXTended and RETracted positions?? The Yellow "Pulses" connection??
What do you have for test gear? Multimeter?? Oscilloscope to look at those Yellow-Lead pulses would be great.
What is an online source for these?? Cost?? Look interesting! OK, got to autoloc.com Cool. I could get dangerous there. Thanks..