I'm replacing the radiator and fan on my 85 4runner and was using my circuit tester to look for a fuse to tap in the box under the hood on the passenger side. I had it ground to the battery and everything was fine as I was going along until I touched one of the wires in the harness plugged in the fuse box (see picture below). There was a pop/click and a flash when I hit it. Obviously worried I grounded out and burnt something up so been searching online for wiring/fuse diagrams and through the FSM. I found everything except where that wiring plug runs to. Everything is taken apart now so I haven't had a chance to see if it's running alright. Can you help me out on what the harness services and what potential damage I might have done since there is problem not a fuse upstream of those wires?
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