Here come the pictures, finally. Hope I can get these in the right order and explain clearly what you are seeing.
First, the mystery of the bathroom light switches is solved (memory loss). Turns out we have 4 switches instead of 3. Doh! Picture 1.
The 2 switches to the right of the Water Pump switch are for the ceiling florescent and the three light bulbs over the vanity mirror. The switch to the left of the Water Pump is for the night lights.
I realize that his doesn't help you with your switches (sorry), but it might help some else who has this exact set up.
Next, the hood/door, hinge arrangement, and lock detail.
First (Picture 2), is a picture showing the door in the open position. Note how the hinge assembly requires that you pull out and up to get it open.
Next is a detail shot of the hinge assembly and the lock receiver. Picture 3 is the passenger side. Picture 4 is the driver's side. Don't be fooled by the neat slot in the hinge arm -- that is not where the lock arm goes. The lock arm just slides behind the flat black metal strap mounted just to the outside of the hinge assembly. And yes, the one on the passenger points UP and the driver's side DOWN. That is so that you can turn the key to the right to lock and to the left to unlock on either side.
Picture 5 shows the lock assembly arm in the opened position. Note the shaft showing between the lock arm and the lock body.
Picture 6 (In the following post) Shows the lock assembly arm in the closed and locked position. Note that the shaft showing in picture 5 has been drawn back into the lock assembly body.
What happens when you turn the key to right is that the lock arm slides behind the lock receiver (that black strap) and when it seats as you continue to turn the key to the right the lock assembly pulls the shaft into the lock body snugging the hood against its stops. When you turn the key to the left, things happen in the reverse order -- first extending the shaft, then turning the arm.
One thing I noticed while I was out at the moho getting the pictures (and then recalled how long it took me to figure it our when the moho was new) is that the key is not user friendly. It will appear and feel as if it is seated in the hole and will turn with some resistance, leading you to think you are accomplishing something. In fact, as I discovered eventually, it may well be that the key is not all the way in and nothing is happening. For those who don't have this set up, the lock and key are circular with "ears' on the key that stick out and engage slots in the key receiver if you get it just right. I've found that by pushing the key in until it stops and then turning it while continuing to press in, the key will finally seat all the way and turning will produce results.
Picture 6 shows what's behind the door. The jack for attaching the air hose is to the very far middle left; the windshield washer fluid reservoir to the very far right; the generator in the middle.
Picture 7 is a close up of the generator.
Hope this helps. If anything is not clear, just say so and I'll try again. It all seems to make sense to me, but I'm sure those incomprehensible computer peripheral manuals ??? made sense to whoever wrote them, too.
Good Luck!
Don