Genie Boom Lift REVISITED! -Part 3 (Michigan)

The second diagnostic call on the way to Chicago is a familiar machine: the 1992 Genie Boom lift, that my friend Vladimir and I took a look at coming back from Montana a couple weeks ago.
Last time we addressed a no-start complaint, and then a start-run-stall.
Now, the customer says that it runs fine from the ground controls, but when the controls are switched to "platform mode" it stalls out! Oh boy...here we go again!
In Part 3 Vlad and I work through the wiring mess.
For the "grand finale" in Part 4 we will install Vlad's custom throttle controller to get this old Genie running 100%. Stay Tuned!
Enjoy!
Ivan