The brake light was not staying on, just the ABS warning light. The brake light worked normally on/off. I thought I had it fixed when the ABS light went off after I cleaned everything up per ODOT's suggestion (ABS light went off, ABS kicked in), but now, a couple of days later, the problem has returned! I had not ridden it in the meantime. I took it all apart again and cleaned and lubed it all, but the light did not go off this time and the ABS does not activate. If it is not related to cleaning the pivot, why did it seem to be fixed when I cleaned it up the first time? I suppose it could be something else wrong and just a coincidence that it went off after cleaning the first time. Puzzle.
This is a tough one without the Manual-if you had one, it would describe the procedure for grounding the test plug and pulling the codes via the ABS ECM, too much to describe here. The manual not only has the procedure (can be done without the Yam test plug), but also code description. The codes, not the symptoms, are outlined. Some ideas-
1) Remove rear wheel sensor, clean it and confirm the reluctor ring isn't loaded with mud or brake pad residue.
2) Confirm rear caliper moves freely-system will detect brake drag, however slight it may be
3) Confirm the wheel bearings are good, the wheel is solidly mounted, the sensor mount is correctly located on the axle
4) Check that the connectors at the ABS ECM are clean and tight. The manual also references the coupler at the meter assembly (dash) concerning looseness, as well as the ABS sub-harness connection to the main harness. In other words, check all the fuckin wires.
5) Voltage is also important-make sure you have better than 10 volts in the system. If the battery is getting weak, this may be the first indicator you have a problem in that area.
Anyway, there's a few ideas. Above all, and others take note-
[SIZE=14pt]THERE IS NO SUBSTITUTE FOR A SERVICE MANUAL WHEN FACED WITH COMPLEX OPERATING ISSUES!!![/SIZE] It is suggested as the first line of defense that one invest in the most important tool one can have in the garage.