Searched the internet for my model and specific error code. The best description/evaluation seemed to be on the AppliancePartsPros website, Watched a very clear and professionally made video for repair instructions and ordered parts. Part arrived in just two days - faster than the website promised.
The repair went almost exactly as the video described, except my year appliance had a crimp-on drainage hose clamp instead of a spring clamp, so I had to improvise a bit. The washer was up and running with no error codes in less than thirty minutes from opening the box to running aload.