Cube77

In General, Body Controlled Modules [BCM] can have different program versions, depending on the vehicle model series, which is best tagged by the VIN. and hence a BCM for the same Vehicle model may have a different PART NUMBER, Right? To clarify my Question: Unless, there has been deliberate changes by someone with a programming device, Do identical part numbers on two BCMs confirm that they have the same program [by default]?