Well… Apple does offer a public service manual now [https://support.apple.com/en-us/100645|Mac Studio (2022) Repair Manual]
Within it we can see there is a diagnostic process as shown here [https://support.apple.com/en-us/102971#input_output1|Mac Modular Desktops Troubleshooting Input/Output Issues] let’s start there.
You may need to open the system up and inspect the logic board to see if you can identify what is damaged. Take some pictures so we can see as well posting them here.