Circuit failures are just that - electrical faults. They may cause a trans failure but not the other way around. There is a main harness on the outside on RE and a harness inside that handles governor pressure, OD and lockup. On the RH there is almost the same internal harness for OD and lockup but the governor is like the old 727, no governor solenoid or transducer. Dropping the pan and seeing burnt fluid and expecting to resurrect the unit by adjusting the bands and changing the fluid and filter is expecting a lot. You may get lucky - for a short while.