I may look at that speedo/ speed control signal, along with the sensor signal, with an oscilloscope next time I have it off the ground. With Paul’s assertion that the processors are the same with the 2 interface modules that he has, I will order those parts in advance to rebuild the module that I have (I should have the capacitors and resistors on hand already).
In the meantime I may just jumper the signal as you suggest; I wonder why they would use the interface if the traveler could read the signal that the speedo uses.
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