So I started up my truck the other morning and it was on speed 3 for defrosting the window. I turned it to 4 and it cut out. I thought it might be a fuse that blew and so i checked that. It wasn't a fuse and so now im thinking it might be in the control itself. Im pretty sure its not the blower motor but i have a friend at Nissan say that its probably the control itself. If anybody has had that happen please let me know. Thanks!