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Re: ABS light on
The ABS system performs a self test on each start up. The final step in the self test, checks speed sensors for output when the vehicle starts moving, and then constantly monitors them while driving. You probably have a speed sensor or speed sensor circuit malfunction. Any time the ABS light is on, only the ABS portion of the brakes is inoperative. A body capable scan tool must be used to retrieve the DTC's, (Diagnostic Trouble Codes).
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