[Shotimes] HOW TO TEST ABS SENSORS?

[jfkoper1@aol.com]

ABS light has been on for over a year. What do I use to test the sensors--a multimeter of some sort? What setting is appropriate, and what readings mean 'sensor good', what readings mean 'bad sensor?' 
Instructions available somewhere?
 
Jim Koper
92
160K miles 
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