ENGINE LIGHT CAME 0N. CONSUMER APPLIED BRAKES, AND VEHICLE WENT FORWARD AND JUMPED CURB. CONSUMER'S VEHICLE HIT ANOTHER VEHICLE, AND LIGHT WENT OFF. NEXT DAY, DEALER CHECKED SYSTEM'S COMPUTER AND A SENSOR KICKED UP THE IDLER. SENSOR WILL HAVE TO BE REPLACED. CONSUMER WAS UNAWARE OF THE CAUSE, AND IF IT WAS AN INTERMITTENT PROBLEM.*AK