The drivers door window on my 2002 RX300 was only working intermittently so I removed the switch module and cleaned the contacts (this had worked previously on the passenger door). On replacing the module I found that the window would not work at all and the central locking on the drivers door would not work either. The central locking works on all the other doors using the remote and the switch and all the other windows operate from the drivers master switch. Could this be a fuse and if so where would it be located?