Ok I have had a lock issue going on my drivers side for months. Had to use my key to lock it. Now im getting massive issues. Is this a voltage regulator or general module issue? I have no clue how to check either or what a general module does. Please help. Here's my issue

1.) No function on remote ( No alarm or locking)
2.) Central locking in cabin does nothing
3.) Front wipers dont work
4.) Interior Dome out (map lights work)
5.) Tail Gate does not work

Please help guys.

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2003 BMW X5 3.0 E53
200K