Where will I find the Body Control Module?

It looks like it's under the back seat. It's with the fuse box. Also I have included how to change it out in the images below. you can get a preprogrammed unit by searching Google or Ebay. Check out the images (Below). Please let us know if you need anything else to get the problem fixed.

Thank you

The issue I'mhaving is. When iturn the vvehicle off the headights stay on. I know the are suppose to for a minute or two, but they stay on a lot long then they are suppose to. Any thoughts.