MY ECU LIGHT KEEPS POPPINGUP WITH 0104 VEHICLE SPEED SENSOR CODE AND MY CRUISE CONTROL ONLY WORKS INTERMITENTLY... HERE ONE DAY.. GONE THE NEXT.. I ASSUME THE TWO ARE RELATED. i TEST ED THE VEHIDLE SPEED SENSOR ITSELF, IT WAS GOOD, TRIED RESEATINGIT.. THE FINALLY REPLACED IT. STILL GOT THE LIGHT POPPIN UP 50 OR 100 MILES AFTER I RESET IT.. ANY IDEAS.. HOW DO I GO ABOUT TESTING THE VEHICLE SPEED SENSOR FURTHER UP THE LINE?

PS: (HOW MANY MILES /TRIPS DOES IT TAKE THE MAXIMA TO RUN THROUGH A COMPLETE ODB TEST (ECU TEST))?

THANKS