found an old print for the dynaglide. looks like MP picks up the M relay, which is delayed on the drop by the resistor, capacitor network RM,RC. check the timing between MP and M if M drops as soon as MP drops, then the rc network is open.
I do have an old manual if you need one, this is a fairly complicated system, I remember being a rookie more then 20 years ago, and there was only one guy who knew how to work on this, and he was from Armor, he was the one who taught me, and i was the lucky one who had to go to the job when it could not be fixed. It was very intimidating to work on. I seem to remember something about a landing computer that would take over the final approach to the floor and try to modify the pattern to get a consistent stop. I believe it was problematic, and i think the guy from armor disconnected the landing computer on the jobs we had. I am trying to go by memory here but i believe when the car decelerates, the pattern will decrease until the count matches the floor count, at which time the pattern will be 0, and the car will stop. i think the landing computer modified the pattern depending on how fast or slow the count was changing as the car approached the floor count. without going over the manual again, i think thats the basic idea. if you need a manual pm me with your email, i could send you something.