NHTSA Complaint #11065294 — 2009 TOYOTA PRIUS

I KEEP GETTING THE CODE P 1121. I HAVE REPLACED MY ENGINE COOLANT VALVE SENSOR UNIT THREE TIMES AND EVERY SINGLE TIME AFTER DRIVING FOR A WEEK THE CHICKENS AND LIGHT COMES ON AND IT THROWS THE CODE AGAIN. I AM CURRENTLY AT THE POINT WHERE THERE IS EITHER NO HEAT OR IT TAKES AT LEAST HALF HOUR OR MORE TO BLOW HOT AIR. IF IT BLOWS HOT AIR IT ONLY CAN BE ON A LOW FAN SETTING. I HAVE USED TWO DIFFERENT MANUFACTURERS. BUT UNFORTUNATELY EVERY TIME I REPLACED IT SAME PROBLEM OCCURS. I HAVE REPORTED THIS IN THE PAST AND THERE WAS NO RESPONSE. BUT IT IS OCCURRED MULTIPLE TIMES SINCE. AND I KNOW THERE IS A RECALL ON VEHICLE YEARS PRIOR TO MINE.