Rear Defroster Not working

[pstryjew]

Hello,

I have an '01 Suburban with Barn Doors. On one of the doors, the defroster is not working at all. Any suggestions on troubleshooting?

1) Does anyone know the "pin outs" for the connector on the right hand rear door?
2) How about the voltage that should be present on the pins when the defroster is on?
3) Do the defrosters have a separate fuse (and one for each door)?

In searching for information, I've found it is really hard to narrow down the TONS of information out there. Searches show a bunch of cars/truck with rear defrosters for sale, no matter how I try to eliminate them.

Pete