OK, now my 1998 S70T5's ABS light comes on intermittently. I've done
various forum searches, and many mention the ABS and TRAC light coming on
together. On mine, it's just the ABS.

It comes on when starting sometimes, sometimes it won't. It will come on
when driving sometimes, and sometimes it will go away.

I think it's pretty obvious that I should replace the sensor. However,
here's another question with that .... would this in any way be able to
drain my battery? My car wouldnt' start during lunch, and the battery
place's gauge couldn't get a reading on whether or not the battery could
hold a charge. It just read that the battery's health was 0. I got a brand
new battery out of it for $22.48, which is not too bad since the battery
was about 19 months old. They applied my full price that I paid last time
to the new battery and only made me pay miscellaneous fees.

Thanks,
Mike