Normal Operation and Fault Conditions
The RCM is in constant communication with various control modules on the High Speed Controller Area Network (HS-CAN). One of those modules is the OCSM. The RCM continuously monitors the High Speed Controller Area Network (HS-CAN) for fault messages reported by the OCSM. The RCM also checks for the correct identification of the OCSM. If the RCM receives fault message(s) from the OCSM, it stores DTC B00A0:09, B00A0:4A, B00A0:63, B00A0:64 or B00A0:68 in memory and sends a message to the IPC to illuminate the airbag warning indicator.
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B00A0:09 | Occupant Classification System: Component Failures | A fault is indicated when the RCM receives a message from the OCSM that a fault exists within the OCS. |
| B00A0:4A | Occupant Classification System: Incorrect Component Installed | A fault is indicated when the RCM senses the OCSM is present but not configured. |
| B00A0:63 | Occupant Classification System: Circuit / Component Protection Time-Out | A fault is indicated when the RCM receives 8 or more invalid states from the OCSM. |
| B00A0:64 | Occupant Classification System: Signal Plausibility Failure | A fault is indicated when the RCM receives messages containing upper or lower data limits other than limits stored in memory. |
| B00A0:68 | Occupant Classification System: Event Information | A fault is indicated when the RCM receives a message from the OCSM that indicates an OCS fault is present. |