Dimming and heated mirrors not working

[never1991]

Hello,

My car is a EURO F80 2017 and I have noticed that my exterior mirrors are not heating with engine on and diming is not working too. I checked the interior rear mirror and doesn't work diming function too.

My exterior mirrors can fold/unfold correctly and the glass is moved with the control perfectly.
I checked the cables of exterior mirror of the driver side removing the glass with a multimeter but I get 0 volts. The engine is power on.

Coding issue?
Any module failing?
Any fuse blown? in this case, which?

I'll appreciate your support!

[never1991]

UPDATE: I checked today the dimming function and works! Only works with exterior low light and engine power on. The sensor is located on the interior rear mirror and the 3 mirrors works at same time.

I still to know how works the exterior heated mirrors. I have no way to see them heated