If none of the controls work, that means that one of the connectors to the door wiring may be not connected, or that the wiring is broken.
The connectors are easy to access.
Two are under the seal in car body
Two are behind the door protective panel
The wiring is passing through the protection numbered 5 in picture below. To access the wiring it is necessary to take apart the door, or at least remove the door panel..
The panel is held by a series of clips around its perimeter. Before removing the panel is necessary to remove handles and plastic parts that are held with hidden screws.
The clips holding the door panel can be removed with a special tool, or with some experience using a knife and a flat screwdriver.
To find where the broken contact is, better using a voltmeter, following the wiring until you get no volts.
Answers & Comments
Hi.
If none of the controls work, that means that one of the connectors to the door wiring may be not connected, or that the wiring is broken.
The connectors are easy to access.
Two are under the seal in car body
Two are behind the door protective panel
The wiring is passing through the protection numbered 5 in picture below.
To access the wiring it is necessary to take apart the door, or at least remove the door panel..
The panel is held by a series of clips around its perimeter. Before removing the panel is necessary to remove handles and plastic parts that are held with hidden screws.
The clips holding the door panel can be removed with a special tool, or with some experience using a knife and a flat screwdriver.
To find where the broken contact is, better using a voltmeter, following the wiring until you get no volts.
Regards.