trouble with the window switch

[Marcus]

Hi,

since a few days I am facing a wired problem: The driver's side window switch for the passenger side front window works only one way (I can open the window but cannot close it using this switch). Fortunately I am still able to fully operate this window with the passenger's side switch.

Now I wonder wether I am facing a faulty switch only or trouble somewere in the electronic and how I could solve the problem.

Thanks!

Marcus