2001 Bonneville Rear Window Defroster No Power
The first time this fall I tried to use my rear window defroster, but found out that it didn't work. I hit the button and the light came on and stayed on like it normally would. However, I noticed that the rear window wasn't defogging.
Last time I used it (probably this spring) everything seemed to work (entire grid).
There are postings referencing the fuse, relay and the ground.
I pulled the back seat and cleaned the ground on the driverí* side (non on the passenger side) and confirmed that the ground was secure. I also checked the relay by using a battery charger and a multi-meter and it appeared to be working normally. I also checked the 40A fuse next to the relay, and it tested ok with the meter as well as when the car was on, there was power above both legs (looks like test points above the fuse).
I also checked the grid itself. By using the meter, I identified that the passenger side of the rear window was the negative side (1 end of the meter on the battery). I then tried to do the same test (car on, R. Defroster button on, but car not running), but with on the drivers side. However, that side was totally dead (tried several grids).
Does the relay supply power directly to the grid or are there additional components on the way? I am wondering if there it is a fried component, bad wire or something else.
Thanks for your help