Remote Dirverside Door Wont lock or Unlock With Remote

[milesz]

I have a 2001 x5 and recently replaced the driverside mirror. Everything works fine but the remote dont lock nor unlock the driverside door. The remote opens and locks all other doors; the hatch works and cabin lights work.

Lastly, when I hit the remote to unlock the driverside door the cabin lights comes on but the door dont unlock and when trying to lock the riverside door nothing happen.

In summary, why the driverside door not locking or unlocking and what happen to my alarm.