Normal Operation and Fault Conditions
The RCM supplies the stability/traction control system with the yaw rate, roll rate, lateral and longitudinal accelerometer over a dedicated CAN. If the RCM detects a fault with communications with the dedicated CAN circuits, it sets DTC U0028:88.
The RCM does not request the IPC to illuminate the airbag warning indicator if DTC U0028:88 is set.
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0028:88 | Vehicle Communication Bus A: Bus Off | A fault is indicated when the RCM detects the dedicated CAN circuits are shorted to ground, shorted to voltage or shorted to each other. |