Body Control Unit

Body control modules (BCM's) for cars are a new and exciting area for the whole automotive industry. Instead of having separate circuits for all a cars functions such as lights and electric windows, all inputs will flow into one box, and all operations of the car will be controlled via this box.

Safety critical systems such as engine management and ABS will however remain separate for the time being.

While this will make fault diagnosis of all these usually separate systems a little easier by just needing one diagnosis tool, the complexity of bringing together all these systems will mean the likely hood of more failures as time progresses and cars run out of warranty.