9 pin connector - dash cluster - 69 'Cuda

Is there a better image / wire diagram that you can point me to?
I have this from the PDF of the 69 Plymouth Service Manual.
I'm troubleshooting an oil pressure gauge - no deflection issue.
I've confirmed that the pressure sensor seems to be good and is sending the appropriate voltage to the dash.
Now the dash is out and I'm................ digging in.

Thank you