07 TOYOTA SIENNA REAR OR FRONT BLOWER NOT WORKING, COULD IT BE A FUSE?

oityourselfmama

MY 07 TOYOTA SIENNA REAR BLOWERS ONLY CAME ON IF I SLAMMED THE BACK DOOR.THAT WENT ON FOR QUITE SOME TIME. THEN ONLY CAME ON WHEN I STARTED THE CAR THEN WOULD GO OFF. NOW THE FRONT AIR HAS COMPLETELY STOP WORKING AS WELL. I TRIED CLEANING THE RELAYS AND ONE STARTED SMOKING--I DIDN'T DISCONNECT THE BATTERY. TOOK ALL 3 RELAYS TO LOCAL PARTS STORE FOR TESTING. TWO WERE BAD. REPLACED THEM STILL NO BLOWER IN FRONT OR BACK AND AIR CONDITIONER WILL NOT WORK AT ALL. PLEASE HELP ME. THANKS

thecardoc3

Both the manual AC as well as the automatic AC systems show separate fuses for the front and rear blower motor circuits, so it cannot be "a" fuse. The fuses are in the under hood fuse block assembly. The automatic AC system uses bower controller modules to control the blower speed in both the front and the rear. The manual AC system uses a blower resistor block on the ground side to control the blower speed in the front and a control module in the rear.

Someone is going to have to test and prove what is wrong with each system. Trying to guess what is wrong without doing that could have you tossing parts at it that aren't the problem.