From the driver's seat I can't operate the front doors windows. Rear doors are OK. From the pass seat that window can be operated. I have exchanged the switch box in the handle of the driver's door, but the problem remains. Some advice?

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I repeat myself: From the driver's side door the front windows can't be operated. The right front door can be op from the switch in that door. I have already exchanged the switch unit in the left front door, but the problem remains. Can you give me some advice, please? Kind regards, Kjell Samuelson kjellsam@gmail.com