front control module

[kwoody73]

what is the difference of a Front Control Module and a Electronic control module do they not perform the same thing. I had a headlamp switch replaced and when they replaced it they tested the front control module an dit would not test so they replaced it, but the warranty says it is not covered. I would think if you need a front control module to make the headlight switch work, that it would be a major covered part that is the front control module.