Theory Of Operation

When powered, the Occupant Classification Module (OCM) monitors the deployment status BUS message from the Occupant Restraint Controller (ORC) to determine when a deployment event occurs. Based on this bus message the OCM sets the B1BA7-Occupant Classification System Verification Required DTC to active. Before performing the OCM Rezero procedure replace all deployed airbags and tensioners and repair all other ORC and OCM active DTC. Also refer to the Service Information for the list of components that must be inspected or replaced after a airbag deployment.