Where are the input and out Vehicle Speed Sensors located?

Both sensors are on the tail of the transmission case. Each has a single bolt that holds it in the case. Removal is simple, remove the bolt, wiggle the sensor until it comes free. Replace with the new one. Snug the bolts back down to 7 lbft. Plug the electrical connector in. Those are not a common failure item on that transmission, Might I ask the reason for replacement?

Okay, if the speedometer cable broke that is the issue, there is another speed sensor in the speedometer head as well. The two in the transmission are only used to control shifts with the output speed sensor used as a comparison to the one in the speedometer itself. The VSS out of range would be the code complaining that the one in the dash isn't reading like the one on the transmission. If the housing for the cable is okay, you could look at places that sell universal cables and see if you can make the inner drive cable work. I have never had one out on a Hyundai but many use the same style internal cable so you could get the internal part and adapt it to fit.

The part # for the OE cable is Hyundai 94240-29030 if you want to look online. The universal ones can be had from places like Oreilys advance and many others. They usually come with a tool to crimp on a drive end, or you can use a hammer and iron or a vice to smash the end into a square if needed.

It shouldn't. It's supposed to be used more with cruise than transmission controlling.