Sunroof on a 2001 Nissan Pathfinder

My sunroof is stuck open and just stopped suddenly without any previous warning of problems. It is stuck with the sunroof tilted up at the back rather than fully open. All I am really interested in doing is getting it closed and then it can stay that way. I am not sure which fuses to check, although all appear to be intact, and neither switch will operate. I suspect a bad switch but it looks next to impossible (to me anyway) to access the switch to check for continuity. Any help would be appreciated