Those two terminals connect to the contact terminals of the relay. Those are the 2 terminals that get connected when the relay turns on. When you jump them together it is the same as if the relay did the same thing, the electricity can flow to the window element. If the window gets warm then it means the relay was bad. If the window does not get warm then it means the fault is somewhere else.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra