need rear window help asap!!!please

[fasttoyz123]

Got 81 blazer was putting in rear (tailgate) switch while putting nuts on saw a spark must have come from center pole on switch now glass wont go down when i push down on switch liights dim radio cuts off like it grounds out. Checked fuses ok even swaped little 30amp metal relays still nothing. Unplugged motor still same problem. Worked great before this. Any help would be great im lost on this!!!! Tks! John
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