i have just sorted mine out the problem was the wires that run from body of the car to the door had broken at the point where they move when the door is opened and closed, there is a rectangular plastic clip that pushes up and then swivells out from the top you can then pull out the conector to then inspect the wires under the protective covering. i took the door panel off and removed the whole section of wire which also includes the speaker cables ,if you need any more help let me know, i also have a lock which includes the electric locking bit that i bought thinking this was at fault on mine ,it is the back passenger door if you need it.
Thanks Darren
Darren, January 2009