There is a rubber boot that goes from the body of the vehicle to the door , with that door open . There are wires inside that boot that supply B+ voltage an a ground an other wires . They break sometimes an they need to be repaired , soldered , connectors or what ever you can do or afford . First off you need to take the inside door panel off , an pull the switch an test for power an ground . There are videos on you tube showing how to do it . Videos on basic automotive electrical testing , how to read a wiring diagram . Go to http://bbbind.com/free_tsb.html
free wiring diagrams .
The vehicle is equipped with power windows controlled by the door modules. The DDM receives a window switch request, over the SBI serial data, from either the passenger door module wired to the window switch pressed or from the driver door switch assembly. The DDM checks the Class 2 serial data to see if the status information is correct (i.e. ignition switch position) to permit window operation.
If the status information to permit window operation is correct, the DDM sends the command to the door module controlling the window to move the window as requested.
Windows Power and Ground
The windows are powered by discreet power and ground circuits. These circuits are in the same dedicated connector as the window motor drive circuits.
- Install a scan tool.
- Observe the power window switch parameters in the driver door module (DDM) data display, Inputs data, using the scan tool.
- Activate each power window switch.
Do all parameters change to the up, down, and for the front door window switches the express states?
Go to Step 10
Go to Step 3
Does the driver door window switch parameter indicate all four states (Idle, Up, Down, Express Down.)?
After reading this I'm sorry to say, but this is over your head an I'd say your best bet is to take your vehicle to a qualified repair shop .