How do you check ABS Sensors?

[Todd Young]

I followed the cord to the nearest plug and pulled that apart. Then 
stuck the leads from a volt meter into the plug that goes to the ABS 
sensor. Have the wheel jacked up off the ground. Turn the volt meter to 
the lowest DC setting you have and turn the wheel. Mine registered 
between 0.2 and 0.8 volts. It just "spikes" on a digital meter, it 
doesn't read constant.

Bob Rossato wrote:
> I'm doing some work on a friend's 1989 90.  One of the problems he has is
> that when you first start the car the ABS system will activate for the first
> couple of times you apply the brakes and then, apparently not happy with
> everything, it will shut itself off.  Bad wheel sensor?  How do you check
> them to find out which one it is?  Is it just a simple resistance check?
> 
> Thanks,
> Bob
> 
> 
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-- 
Todd Young
7079 Dawn Ave. E.
Inver Grove Heights, MN 55076