Quote:
Originally Posted by gmctruck06
Having brake issues with my 1997 Blazer. Replaced a wheel speed sensor a week ago and now the abs actuates on almost any road condition. No codes are present. Cleaned the sensor targets and still having problems.replaced the actuator. No dice. Any assistance would be greatly appreciated.
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most likely the other sensor.
low speed ABS activation is most always a dirty or damaged sensor/wires/connector.
disconnect the sensor connector attach a volt meter AC VOLTS at low range to measure 1/2 volt. rotate the hub by hand at a good rate and see if you have more than .3volts ac. compare both sides. a new sensor properly set into place should read a full .5volts ac.
OVER .3VOLTS SHOULD WORK. UNDER THIS VALUE NO.