2001 No Crank

I have a 2001 intrigue. After an oil change I wen't to erase the "oil change" light but it took lots of tries. Something broke along the way because now the car won't start, it doesn't crank, nothing. It didn't have any starting issues before the oil change and it started up right after the oil change, I just turned it off to erase the light.

I got two codes P0385 and P0340. I searched on the forum and found that the Crankshaft Position sensor might be the culprit but it could also be the starter. Any advise would be greatly appreciated before I start buying parts. Thanks.

The starter will not turn I assume, if so confirm good battery connections, not just tight but clean. Alkso does the security lite stay on when trying to start?

How do you check if the starter is turning? It doesn't crank, all you can hear is like a relay clicking. The battery terminals are clean, everything works, radio, head lights, windows, locks. So I don't think it's a battery issue.
The only light that stays on is the "service engine soon" light...

Have you checked fuses? Also, have you disconnected the battery? If not, disconnect it for a few minutes then reconnect. This simple procedure has solved a lot of weird GM electrical problems for me...

If that doesn't work, something could be wrong with your neutral safety switch. But I'd check the starter out first. You can find many instructions on the internet about how to test a starter.

12v to the starter purple wire on the solenoid when cranking only.

It was the purple wire not making a proper connection to the solenoid. Fixed the connection and it started right up. Thanks for the help.