Electrome mirrors not working

[concepo]

Hi

I have powerfold sidemirrors + rearmirror with electrome function
(So they normaly auto shuts down when the lights from another car hits)

Bot none of it are working. Only the powerfold-function, and the adjustment is working fine. So the fuse should be ok.

So my question is: Is the sidemirrors electrome function controlled by the
rearmirror ? (So its only the rearmirror that are not working)
Or can it be that all the electhrome glass need to be replaced ?

Kind regards

Thomas