I have that manual but some of the tests are quite non-descript to the point of convolution.

Here are some examples:
L4: "When used ignores open switch between L4 & L5" Pardon me??
L5: "Must be high after L3 & L7 are at battery volts for over 0.5 seconds and while L9 & L10 are low to complete SRO logic" Whoever wrote this must have been high after L3 & L7 are at battery voltage.
R2: "1A thermal holdoff control jumper to R4 to disable 1A thermal holdoff." Is that saying to put a jumper from R4 to R2 or... what?
R3: "5-10milliamps" from where to where? I assume R3 to the wire that I disconnect and connect to the ammeter? Or maybe to R4 because of note 1? I just don't know.
R4: "read from TBR4 to Neg." What is TBR4? I could assume it means R4 to Neg without disconnecting any wires but I don't want to assume.
R10. Not plugging mode vs plugging mode. How do I get it into plugging mode to see if I get the 8 volts?

Are there any particular tests in this manual that would address the FWD/REV movement issue I am having? This is a LOT of info with quite a bit of assumption that the reader has experience in testing these things. I'm very lucky and I count my stars that I have some equipment to test with and that someone like you is here to help... but this is stating to melt my mind.

In case I haven't said it before, thank you for your help so far. I really do appreciate it.