Hi Mike, I don't know which wire goes to which battery terminal. I tried it both ways. Turned on the dashboard switch that i circled in yellow in this picture:
The two toggles to the left of that circled in red are what makes two different relays click. One for front one for rear. Those don't do anything until the Thruster On switch I circled in yellow.
However, on the battery#3 solenoid, I tried measuring voltage yesterday and got none.
The yellow and block wires bolted to it.... the small triggering black wire and the main black wire sticking out the side bolt on the right of the solenoid go down and to the right. The yellow wire goes left toward the other wiring blocks. But to my dismay i found that it was simply spliced into two other random black wires with a big yellow butt joint seen below:
I can't see where those black wires it is spliced into goes. But it doesn't go into that fuze behind it labelled Thrust. BTW, any ideas what the fuse labelled "T TAE" might stand for?
Another thing that has me worried, is that the battery#3 solenoid only has 3 main wires (and the two activating wires). All three are black. Two were dangling with ring connectors that i connected to the battery. Then there's one more big black wire. Wouldn't there need to be 4 big wires to match up with the two going to the battery#3? Maybe there was another one that got pulled, ugh.
BTW, here's a pic of the rear thruster in the up position. The switch to raise it is in the panel next to the door.
I should have gotten into this sooner. I'm taking the boat out on Sunday.