Where is the ignition number one relay located?

Hello, what exactly are you trying to figure out? There is the EFI Main Relay which powers up most of the engine computer components. And there is an Ignition Main Relay, but strangely enough it powers up the seats in vehicles, seat heaters, seat back heaters, things of that sort. The second diagram is the Ignition Main Relay located on the driver side dash instrument panel junction block. So, there will be a small cover somewhere either on the side of the dash or down by your feet on the driver side. Thats where that relay is located. I don't see anything labelled Ignition number 1 Relay. If I find anything more ill post it. But if you have a specific issue your dealing with, that might make it a little easier.
Toyota doesn't make anything easy when it comes to finding certain circuits, somethings are labelled engine, but have nothing to do with the engine, Thats why you are having so much trouble finding information.

Okay, because of the way Toyota ties things together, I'm just giving all the power diagrams for everything. So, diagrams 1 and 2 (1 is the top 2 is the bottom half), 3 and 4, 5 and 6 all go together. If you print them out, you'll see you can just take 1 and 2 and put them together, etc. I'm also adding in the Shift Interlock as a separate diagram, (page 7) because it can be a bit difficult to understand, but this way he has everything for the vehicle. Because everything was working previously, and I'm not sure how long the car has sat, but I would look for rodent damage. They love to chew on wires, and check all fuses, under the hood and in the interior fuse panels. If you need anything more just ask. But I think he will be able to find what he needs from here. I would look for a main power feed or fuse since so many components are not functioning.

Make sure to check all your fuses to, if one is missing power, you will know which circuit is affected.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter