I'm just wondering what this part is. I was cleaning my spare tire area and notice a square-looking component mounted on the back wall of the spare tire well with a wiring harness that looks like it goes thru the rear panel along with the lights harness. It has a label but the number does not correspond to any listed part number. The number on it is 6R3A-9D372-BA and some other smaller numbers.

 

Fuel pump driver module.

 

ahh. ok. I didnt know it had such a part. Kind of a funny place for it I think, but I'm still getting used to the "Ford way" of doing things having come from GM cars.