I have a 2008 Mazda6 2.3L. I can’t find the transmission fluid pressure sensor?

Hello, I have located the switch on a diagram of the transmission when seeking the location in the workshop manual. It's on the side of the transmission. That's the best I can say. I don't really know how to explain it. You kind of have to see it on the diagram. I would recommend seeking the ability to view a diagram, or see repair shop that has a diagram. You can try www.alldatadiy.com for a repair manual subscription which will show it. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops