Who have I seen more than one post about pulling/disabling the light? Is it typically the ABS itself...and a hard/expensive part to find/buy?

I assume you have brakes (but not ABS function) when your light turns on?

I've had two ABS problems (with other vehicles in the past). Both times, I got them fixed and it was expensive. IIRC, it was necessary -- unless I wanted to attempt a retro non-ABS conversion.