CAN Communication: B-Can
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
The BSI control unit is on the B-CAN, and it communicates with other units (AcuraLink, gauge control module, MICU, rear MICU) via the B-CAN.
If the BSI control unit detects a communication error or a malfunction in another connected unit, the BSI system will not operate even though it is OK.
In this case, both the BSI indicator and the related unit indicator will come on and stay on.