Found the ABS plug under the seat - had trouble registering any AC signal at all (ie I didn't get anything). Admittedly I was only spinning the wheel at what I would guess is 10km/h as a maximum, but couldn't get any voltage. (meter is supposed to resolve to 0.1V)
Don't take this as gospel though - I may just need help in having someone else spin the wheel while I try to take readings. I'll try again later.