Update…As suggested, I took the cable out and didn’t see any issues but when I reinstalled it, I found the plastic piece it slides into was rough and ...

Thanks everyone for the information. I'll be working on this over the next couple of days using your suggestions. I went for a short ride today and ...

Thanks for the detailed response! I’ll verify the physical connections first. The speedo and tach are working correctly so I’m leaning towards an issu...