Old Washer Spin Enable Switches: A mercury type spin-stop lid or door safety switch was used on most automatic washer appliance models until very recently. This device is mounted by a bracket to the lid hinge. This position ensures proper operation of the appliance, which depends on mercury within the capsule to make or break the contact. When the appliance owner raises the lid during spin, the mercury in the switch capsule runs away from the switch contacts, and the timer circuit to the spin solenoid is broken.
It’s always possible somebody somewhere has posted a wiring diagram on a forum in response to a request, but generally I would think the odds of finding one are pretty low. The best thing to search in Google for (if you haven’t already tried) would be the words, wiring diagram, or wiring schematic, followed by the model number of your appliance ( Where to find the proper model number and serial number on a washing machine ). There are some repair manuals being sold but these are very general and not model specific and written by third parties. All the ones I’ve seen are very much out of date although they may well still contain some useful general advice and knowledge.