How can you reset the sunroof of a altima 2002 and where is the fuse for the sunroof

What do you mean by "reset the sunroof"? Do you mean that when you push the button it will not open or close?

The fuse will be in the fuse box mounted under your dash. Look in your handbook and it will tell you which fuse controls the sunroof.

If the fuse is good, check the wiring going to the switch with a volt meter to make sure you have 12 volts to the switch, if not it is the wiring going to the switch. Then check it at the motor and you should have 12 volts when it is switched on, if not you have a bad switch. If the switch checks out then you need to unhook the motor from the sunroof and see if it works then. If not the motor is bad, if it does work then either the motor is weak or the sunroof is jambed in the tracks and the motor can't move it.