Hi there - First time poster. I have a 98 Expy XLT. Recently the window began to go down on its own; would roll up each time no problem. Now it will not go down at all via the switch. I took the door apart, tested wires at switch harness - power from each of the three wires when expected. I tested all the way to door jamb; removed the rubber protector tube, tested some more, all good. Still no power to the motor when the switch is in the down position. My guess is that there is power going to the switch, but not to the motor. Hence, it is either the gem module or some kind of issue with a relay or....????? I crossed the wires at the motor, pushed the window button up and the window went down. (motor and regulator ok) . I am hoping to rig another switch (20 amp 12V momentary) , one for making the window go down and the original for making it go up. Too cold and snowy here to do the gem at this point is that is the problem. Just looking for advice and suggestions.