BMW E60 N47 Lights permanently on

[adelin731]

Hello, 
Since last year I have these errors.
They appear sporadically and disappears also. 
My car has interior lights and exterior lights permanently on
I tried to change the switch but it hasn't resolved the issue. 
I checked the voltage of the dimmer in ista and when I change it manually it change the voltage also. But the dimmer interior light remains the same. 
Also when I activate the fog lights or I move the switch it doesn't change anything. 
Sometimes it magically repairs itself, works for some months and the error appears back. 
I can t find someone with these type of errors to give me an ideea what should I check. 
If more information are needed I can provide them. 
Ista tells that it communicates well with the LM 
Please help me. Thanks. 
009CB0
009CB1
009CB2 
009CB3

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