Headlight Module?

Hello All,

I have a weird, but not serious problem on my S80.

My car's tail lights are always on when the car is on, no matter what headlight setting I am using. (0, I, II)

I went to the local junkyard to test another headlight switch module, but same problem.

Was wondering if anyone else has this, or a way to disable the tail lights if I am on the 0 option.

Thanks.