WHILE DRIVING HOME THE CAR ACCELERATED ON IT,S OWN AND WAS UNABLE TO STOP WITHOUT REARENDING ANOTHER CAR WITHALL THE DAMAGE TO MY CAR AS A MECHANIC I REPAIRED THE BODY ON MY OWN AFTER MAKING REPAIRS I WAS ABLE TO DRIVE THE CAR FROM THE SHOP I WORK AT TO MY HOUSE THE CAR WAS IDLING A LITTLE HIGH .I RETURNED TOWARD WORK THE NEXT MORNING TO SCAN THE CAR FOR HIGH IDLE .THE CAR ACCELERATED TO OVER 100 MPH WITH MY FOOT OFF THE ACCELERATER AND BOTH FEET ON THE BRAKE PEDAL I HAD TO SHUT THE CAR OFF TOSTOP IT I HAD IT TOWED TO WORK I SCAN IT AND FOUND CODE C1203 WHICH IS A COMUNICATION FAULT FROM THE ECM TO THE VEHICLE SPEED CONTROLLER WHILE RESEARCHING THE CODE I FOUND THAT MY CAR FELL UNDER A CLASS ACTION LAW SUIT FOR THIS PROBLEM I NOTIFYED TOYOTA WHERE THEY SENT AN OUTSIDE ADJUSTER OUT TO EXAMINE THE CAR HE FILED A REPORT TO TOYOTA SAYING THERE WAS NO PROBLEM HE DID NOT MENTION THE CODE IN HIS REPORT I FILED AN APPEAL ON OCTOBER 2017 AND HAVE NOT HEARD OF ANYTHING WITH THIS PROBLEM I HAVE BEEN A MECHANIC FOR OVER 35 YEARS AND EXPLAIN THE PROBLEM TO THEM WITH NO SOLUTION THIS HAS BEEN GOING ON SINCE MAY2017 I JUST WANT A SOLUTION TO THE PROBLEM WITHOUT HAVING TO EXPLAIN A FIX TO TOYOTA FOR THIER CLASS ACTION SETTLEMENT IT SEEMS THAT THE INDEPENENT ASSESSOR IS WORKING FOR TOYOTA AND NOT THE CONSUMER