Network Message Chart
PSCM Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Battery voltage | BCM | This message is sent to the GWM and then to the PSCM. This message provides the PSCM with the current 12-volt battery and charging system voltage. |
| Driven wheel torque output | PCM | This message is sent to the GWM and then to the PSCM. This message informs the PSCM of the current torque output available at the driven wheels. This information is used for active park assist operation. |
| Ignition status | BCM | This message is first sent to the GWM and then to the PSCM. Used to confirm the ignition status of the vehicle. |
| Odometer master value | IPC | This message is first sent to the GWM and then to the PSCM. The PSCM uses the odometer information for various self diagnostics. |
| Outside air temperature | IPC | This message is first sent to the GWM and then to the PSCM. The PSCM uses the temperature information for various self diagnostics. |
| Parking aid data | PAM | Contains the steering angle requests for parking assist operation. |
| Parking aid data | IPMB | Contains the steering angle requests for park assist operations with a trailer. |
| Powertrain status | PCM | This message is first sent to the GWM and then to the PSCM. Used to confirm the status of the operating mode; off - torque not available, on - torque not available, start in progress - torque not available or on - torque available. |
| Reverse gear status | PCM | This message is sent to the GWM and then to the PSCM. This message informs the PSCM of the current reverse gear status; inactive not confirmed, inactive confirmed, active not confirmed, or active confirmed. This information is used for active park assist operation. |
| Turn signal switch status | SCCM | Informs the PSCM of the current, driver selected turn signal switch status; off, left, or right. This message is used for lane keeping system function. |
| Vehicle configuration information | BCM | This message is first sent to the GWM and then to the PSCM. Used to compare the PSCM configuration against the vehicles specific configuration (central car configuration). |
| Vehicle speed data | ABS module | Determines the level of assist supplied to the steering gear and 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 EPAS motor position sensor. |
| Vehicle yaw rate | ABS module | Used by the PSCM for steering assist calculations. |