This does not apply to the 2002 and 2003 models because the wiring pin 
numbers and wire colors are different. Also, the 2002 is different from the 
2003 model.

The power window motor is a DC motor. By reversing the polarity of the 
power to the motor, raising & lowering of the window is accomplished.

Measuring voltage at the connector for window switch is easiest, as you do 
not have to pull the door panel off. Pop out the window switch (pry up on the 
front end) and the connector is easily accessed.

The main window switch in the left front door has 2 connectors on it and the 
wires that go to the motor are in the big connector.

 ╔═══╦═══╦═══╦═══════╦═══╦═══╦═══╦═══╗
 ║ 7 ║ 6 ║ 5 ║ LOCK  ║ 4 ║ 3 ║ 2 ║ 1 ║
 ╠═══╬═══╬═══╬═══╦═══╬═══╬═══╬═══╬═══╣
 ║ 16║ 15║ 14║ 13║ 12║ 11║ 10║ 9 ║ 8 ║
 ╚═══╩═══╩═══╩═══╩═══╩═══╩═══╩═══╩═══╝

Those pin numbers and wire colors are:

pin 1 - solid green
pin 2 - solid blue

pin 1 is in a corner of the connector and pin 2 is right next to it.

In operation:

window up - pin 1 (green wire) is 12 volts and pin 2 is ground

window down - pin 2 (blue wire) is 12 volts and pin 1 is ground

-_-_-_-_-_-_-_-_-_-_-_-_-_-

The other three door window switches use a different, smaller connector than
the left front door switch.

To remove the right front door window switch assembly, pry up on the front 
end.

To remove the rear door window switch assembly, pry up on the REAR end 
of the trim plate.

 ╔═══╦═══╦═══════╦═══╗
 ║ 6 ║ 7 ║ LOCK  ║   ║
 ╠═══╬═══╬═══╦═══╬═══╣
 ║ 4 ║ 1 ║ 3 ║ 2 ║ 5 ║
 ╚═══╩═══╩═══╩═══╩═══╝

Those pin numbers and wire colors are:

pin 1 - solid blue
pin 2 - solid green

pin 1 is the second pin in from a corner of the connector and pin 2 is the 
second pin in from the opposite corner of the same row.

In operation:

window up - pin 1 (blue wire) is 12 volts and pin 2 is ground

window down - pin 2 (green wire) is 12 volts and pin 1 is ground