2003 grand caravan drivers window will not roll down, although the controller on the drivers door will roll down the passengers window. any suggestions?

About 95% of the time it is a bad set of brushes in the window drive motor. They are 4mm X 4mm X about 8mm long with a side connection to the pig tail wire and spade lug. Problem is they won't sell you a replacement brush set. Although it is a little tricky to install a modified replacement brush, it can be done for less that a couple of bucks. First remove the side panel on the door (See one of many how to's.) Then free up window drive motor from its mount. Then turn up -right and remove 2 phillips screws on motor housing being carefull not to lost the two nuts..Pull off the motor housing. Remove the motor shaft winding from housing. Install the new brushes being careful not to lose the pressure springs. Reinsert the drive shaft without housing and carefully press brushes back against pressure springs to allow the shaft to twist into place (ccw). While holding with a small screwdriver so shaft cannot be pulled out by magnetic force, carefully slide on housing and align to reassemble. Make sure you did not dislodge brushes. Pull out small screwdriver and shove housing all the way on. Another way to retain brush springs compressed is to use fish leeder to hold brushes open until housing is about in place. Reconnect plugs and test window before putting all back together.

Otherwise you have to replace the whole window regulator at about $50 on ebay or several hundred $ at the shop.
Hope this helps. kcar11705@yahoo.com

Open the passenger side door & wiggle the harness while pressing the button. If it works then there's a broken wire inside the rubber harness. If not check the passenger side switch for power. Use a test light to verify it switches from up to down. If it doesn't replace the switch.