I need help diagnosing a problem on my 1995 Evinrude 115. The trim switch on the shift/thottle controls only works in the down position. However, the trim switch on the motor works both up and down. Could this still be a relay problem, I don't know if the two switches work on different relays or not? If not, I would imagine the trim switch on the shift/throttle control is the issue? Does anyone have a diagram or schematic of the shift/throttle control? Thanks for the help!