Network Message Chart
PSCM NETWORK INPUT MESSAGES
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| ABS active | ABS Module | Used to confirm that an ABS event is taking place. |
| Engine speed | BCM | Engine RPM monitored to initiate EPAS activation and continued operation. |
| Power Mode | BCM | Used to confirm the ignition status of the vehicle. |
| Stability control brake active | ABS Module | Used to confirm that an ESC event is taking place. |
| Steering angle counter | SCCM | Used to verify the validity of the steering angle message. |
| Steering angle status | SCCM | Used to confirm the steering angle sensor is initialized and operating correctly. |
| Steering wheel direction of rotation | SCCM | Used to confirm the direction in which the EPAS motor is driven. |
| Traction control brake active | ABS Module | Used to confirm that a traction control event is taking place. |
| Transport mode | BCM | Used to confirm the vehicle is in normal operation mode, factory mode, transport mode or a crash event has been identified and the vehicle has been set to a post crash configuration. |
| Wheel speed data | ABS Module | Used to validate the steering wheel component angle by comparing the rotational speeds of each wheel. The difference in the speed of each wheel is used to derive a steering angle for comparison against the absolute steering angle message from the SCCM. |
| Vehicle configuration | PCM | Used to compare the PSCM configuration against the vehicles specific configuration (central car configuration). |
| Vehicle speed | ABS Module | Used to determine the level of assist supplied. |