2002 Mercury Marquis GRAND MARQUIS 2002 ABS AND BRAKE LIGHT

2002 MERCURY MARQUIS
58,000 MILES • V8 • 2WD • AUTOMATIC
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2CARPRO JACK
  • ✓ASE Certified Mechanic
  • ASE Certified Mechanic
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HI, I HAVE A GRAND MARQUIS 2002, ABS AND BRAKE WARNING LIGHTS ALWAYS ON, THEY DON'T OF WHEN CAR IS RUNNING, I CHECK FUSES CONNECTORS, ALL OK, BUT WHEN IS CONNECT AN ABS SCAN TOOL THERE IS NO COMMUNICATION WITH THE ABS MODULE, I CHECK ELECTRICAL CONNECTIONS IN THE ABS MODULE CONNECTOR AND ALL OK VOLTAGES AND GROUND, I TEST THE RESISTANCE OF THE ABS WHEEL SENSOR AND ALL OK, IS THE PROBLEM THE ABS ELECTRONIC MODULE? THANKS.
RAMON V.
Apr 21, 2010 at 6:24 PM
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RAMON3710
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If it wont communicate, the module is usually the culprit.I would try with a different scanner just to be sure. I have had different scanners work on occasion.

Also check the fuses if one is blown it will cause this problem.
Apr 21, 2010 at 7:22 PM
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