Get a length of two conductor wire .... like lamp cord, speaker wire etc. Each end will have two wires: Lets say + and -
You want to attach a + and - to the battery (one on each battery terminal)
At the other end of the lamp cord you will have two wires + and -
Since lights, motors etc all take at least a + and - to complete a circuit this is what you will use to to try and make the window motor run.
Ideally attach aligator clips on the ends. Disconnect the connector going to the window motor, or if there is a electrical connection block mounted to the door, so much the better.
Positive is almost ALWAYS associated with + and brown or black with -
Run the wire/cord from the car battery to the window motor you are trying to test.
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