Need help. Dropped the subframe to replace the main seal on my 01 s2000. Put everything back together, and now my tachometer isn’t reading.

I was careful not to stretch wires. I plugged my laptop into the ECU and it shows my RPMS. So I took the dash apart checked the signal with my electrical meter at the solid blue rpm wire and it just steadily beeps at me.

I then traced it to the A connector at the KPro (A07 ECU) and again, just beeps at me. I took the KPro apart and all looks good. Any ideas?