Maxima97'SE

Well my check engine light came on a few days ago a pulled the code the day after it came on it came up 0104. I reset the ecu thinking it might just be something that would go away because everything was fine. It came back on the next day, same code. Today I will attempt to test voltage if I could only find the VSS (wehicle speed sensor). Any help would be appreciated on finding the location of the speed sensor. I would go look at a repair manual tomorrow but it might take a few hours just to get to the parts store being the busiest shopping day of the year. Thanks. Nick