How do I bring ED-E to the scrapyard?
No. You'll need to get Ed-E fixed up first. If you lack the requisite Science or Repair skills, you should be able to substitute a lot of parts for any actual knowledge. Specifically, 3 Scrap Metal, 2 Sensor Modules, and one Scrap Electronics.
Alternately, you can just come back later, or pop a Skill Magazine.