Where is the solenoid located? Not the one on the starter itself

I am not sure which solenoid you are referring too if not the one on the starter. Take a look at the wiring diagram I attached below where it shows the complete starting system and I it doesn't show another solenoid for the starter.

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

Let us know a little more detail about what the issue is and we can see if we an help. Thanks

There isn't a solenoid on the inner fender like they used for decades, and there isn't even a relay. Starter solenoids can draw up to 20 amps, and the engineers seem to think the little ignition switch and neutral safety switch, (transmission range sensor), can handle the job.