M Reg Hyundai Accent 1.4 gsi?

My central locking has malfunctioned causing the passenger side door to remain locked. Cannot open from inside or outside. All other doors ok. How do I disconnect the central locking system so I can open door? I thought maybe pulling the fuse, but cant find it, thought it might be in the fusebox in bottom right hand corner of drivers side under dashboard.
Can anyone help?

Andrew Brown
March 2007