BCM REPROGRAM

I Have Purchased A New Bcm And Have A Snap On Scan Tool On Loan. Now I Just Need A Step By Step Or Direction As To How To Program My Vehicle...

Suspect Faulty Bcm. I Want To Swap It With A Used Bcm From A Similar Vehicle. I Want To Know If There Is Some Required Programming Necessary...

One Day My Car Would Not Start. I Tried Several Times. Took The Battery Out Had It Tested And Charged Put It In And The Aftermarket Code...