WHILE DRIVING MY 1999 CHEVY SILVERADO, THE ABS LIGHT CAME ON AND STAYED ON. A LITTLE SEARCHING BROUGHT ME TO THE ABS MODULE ON THE FRAME UNDER THE LEFT SIDE OF THE PASSENGER COMPARTMENT. IT WAS RUNNING, EVEN AFTER THE VEHICLE WAS TURNED OFF AND THE KEY REMOVED, IT CONTINUED TO RUN. I DISCONNECTED THE POWER TO THE UNIT AND TAPPED THE WIRE UP SO AS NOT TO LET IT GET WET,(OBVIOUSLY,IT'S CARRYING A LOT OF JUCE.) WHEN I TOOK THE TRUCK TO THE DEALER WHERE I HAD PURCHASED IT THE SERVICE MANAGER TOLD ME THAT THE ENTIRE MODULE WAS BAD AND IT WOULD COST NEARLY 1000 DOLLARS TO FIX. HE SAID THAT THE MODULE ITSELF WAS GOING TO COST 761 DOLLARS. IT'S MY OPINION THAT NOTHING MORE THAN AN INTERNAL RELAY HAS GONE BAD AND I KNOW FOR A FACT IT HAS HAPPENED TO OTHERS TOO. MY TRUCK HAS ONLY 35,000 MILES ON IT AND SHOULDN'T BE PRESENTING COSTLY REPAIRS LIKE THIS WHILE I'M STILL MAKING PAYMENTS ON IT AND HAVE BABIED IT IN THE 13 MONTHS THAT I'VE OWNED IT. IF THESE MODULES ARE FAILING AT THE RATE THAT IT APPEARS THEY ARE THEN CHEVY SHOULD RECALL THEM OR COME UP WITH A LESS EXPENSIVE SOLUTION LIKE AN EXTERNAL BY-PASS TYPE RELAY THAT WOULDN'T INVOLVE REPLACING A COSTLY MODULE LIKE THIS OVER SOME 5 OR 10 DOLLAR RELAY. *AK