Questions & Answers for: Volvo V70 uem

...box to the right of the dashboard. It is for the siren. There is a serial communication between the UEM and siren which if communication stops there it will stop power supply to sunroof module. ...

...on Volvo I have checked the fuse and that's fine I have also done the quick fix to reset the uem but still nothing could you advise please Something with a motor like that should have a relay ...