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ABS Light and Trac Lock Off
1999 Pontiac Grand Prix

ABS Light and Trac Lock Off

(1999 Pontiac Grand Prix)
ABS light wont go out and Trac Lock is illuminated.. Under the hood the area aqround the modulator is making a humming noise even with the car off the sound has not gone away for two days
in Elizabethtown, KY on March 07, 2010
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Popular Answer
on March 07, 2010
You have a stuck relay for the ABS system and the pump is running. Have a good shop check your ABS system, but generally when this happens the unit needs replacing because the pump controls are internal, non-serviceable relays.
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General Diagnosis
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on March 07, 2010
You have a stuck relay for the ABS system and the pump is running. Have a good shop check your ABS system, but generally when this happens the unit needs replacing because the pump controls are internal, non-serviceable relays.
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