You might be right. What is your car doing to make you think your BCM is acting up? Beware of Car-part.com a lot of those items you see on there havnt been update since 2001. When i called on various items I got a lot of "We dont even have that car anymore" kinda thing. Sometimes you get lucky though.
The BCM is easy to remove, it hangs on your junction box, back behind the steering wheel on the driver kick pannel wall. All you gotta do is remove below the steering wheel assembly and go to work.