Here is a page to link to the subaru wiring information for the height control.
Why? because Elizabeth wnated it and someone else may need it as well.
These are for a 1987 GL-10, I don't know how similar they will be to the newer rice burners :-)
The images are pretty big because that's what it took to get the detail.

Main wiring diagram here

Electrical unit location 1

Electrical unit location 2

Electrical unit location 3

Electrical unit location 4

Trip Computer diagram