HI everybody,Yesterday i got one problem from my car E30.My problem is center locking not function?I've alarm lock ...it's happen suddenly.. after locking my door with use alarm lock. After i want to get my car back i unlock the key alarm, but my center lock not function. And there is one lock can open by use a normal key at the passengger door to open....So what i have to do with this problem. Can anyone help on this problem.? Can somebody teach me how to manage and fix this.....Thanx