The weekend that my car got the SES light on was on Labor day weekend which made the Nissan Dealership be closed on Monday (the only day I was available
So, I was talking to a friend and her husband s a mechanic and he researched online, told me to go to Autozone to purchase the part.. $30 something.. and he put it in within an hour and I have had no problem since!!
I wish I remembered the name of the part.. but I would really recommend someone you know who knows about cars to replace it. There is so much info online about this problem and the part. The only thing he said was that he needed a mirror to put the part in.
Anyways, I hope this answers your question..