OK, after another frosty morning, I decided to tackle my broken rear defroster. There's power at the fuse panel and the yellow indicator comes on when I press the defrost button. So I popped off the C pillar trim and see a strange translucent blue box. On one end is a white incoming power (I'm assuming it's power) lead and a black antenna lead (with a little black pigtail going to one of the defrost element tabs). On the other end of this box is a black and red lead. The box itself is grounded to the body with 2 sheet metal screws.
black (to defrost tab #1)----\ ---defrost tab #2 \ |------------------| black antenna lead--------------| translucent blue |--------red wire white lead----------------------| box | |__________________|--------black wire
The other tab for the defrost element is missing. Am I correct in assuming the black lead is ground and the red lead goes to the missing defrost element tab?
Any suggestions would be greatly appreciated.
Cheers,