relay should be under hood in a black relay box. if ac light is not coming on then the ac fuse could be blown and it is usually in right kick panel or behind glove box also check left side fuse block behind the cover next to steering wheel that pulls out and at left kick panel
Don't waste your money on unnecessary sources and unwanted repairs. Get this manual online at www.reliable-store.com and get complete guide on whether to repair or not, service it, and how to repair etc
was the control panel ever wet? You may need to remove the entire dashboard to get the part out - I am not that familiar with 4 runners so I could be entirely wrong
Hello, it sounds like the timing belt may have slipped on the gears, the top part of the timing cover can be removed to check the timing marks with the engine at TDC.
Sounds like a sticky throttle if you can't keep idle. It won't hurt to try.... you can try a quick cheap trick by spraying a little carbon remover (buy at any auto store i.e. autozone, oreiley's) inside the throttle, open the valve, spray just small amount, close it back up and rev it a few times and repeat. It removes the carbon film after long use. fixed my idle issue in my cars. If its really bad you might have to clean it thoroughly but i highly doubt you have to do that.
https://www.youtube.com/watch?v=41yFXjibtLY
it may be that the clutch start switch positive wire is shorted out to a ground, try to bypass the switch and see if the fuse stops blowing, if it does get an ohm meter and check each wire to ground, only the white black wire is grounded.