A belated welcome to iRV2. First post I see.
The living room slide controller , on my 99, is under the kitchen sink.
The load sense shut down is adjustable, and I have had to on occasion help the slide up the first ramp of it's retraction. In the first foot the slide goes up a 45 degree ramp. When you make adjustments on the control, do so in small increments , as the same adjustment effects the out stop, and can strain the slide trim when the slide hits the out stop.
I've found fuses and 12v C/Bs in 10 locations so far. keep notes when you find them.
Here's a picture of my control, mark the start point of the adjustment , before you start.