The location of the fuse box(es) in a 2005 Grand Caravan is typically under the hood and sometimes also inside the vehicle (usually under the dash). The owner's manual will show you the exact locations and the fuse layouts, which are crucial for identifying which fuse(s) might be related to the alarm system malfunction. If your alarm isn't working, checking these fuses is a good first step, but it might also indicate a problem with the alarm system itself or the BCM.