Dodge Ram Promaster BCM B10AA-4A blind spot

B10AA-4A isn't specific to the blind spot module. It means that a component within the BCMs factory configuration network is not the same as the original. I suggest attempting a PROXI/PROCSI alignment first and if there is a module that's not correct it should tell you which one is failing or not currently configured. I ended up getting a friend at the dealer to program the blind spot module as my autel and snap on scanners were not pushing the VIN into the module when performing the PROXI alignment.