Network Message Chart
ABS Module Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Accelerator pedal position | PCM | The ABS module uses accelerator pedal position information for correct operation of the traction control and ESC systems. |
| Adaptive cruise control brake precharge request | C-CM | The adaptive cruise control system uses the ABS module for braking. This message informs the ABS module the adaptive cruise control braking event requires a precharge of the hydraulic system. |
| Adaptive cruise control brake request | C-CM | This message informs the ABS module of the adaptive cruise control system brake request. |
| Adaptive cruise control deceleration request | C-CM | This message informs the ABS module of the adaptive cruise control system deceleration request. |
| Adaptive cruise control monitor error | BCM | This message informs the ABS module of a adaptive cruise control system error. |
| Brake pedal applied | PCM | Used to inform the ABS module the driver has pressed the brake pedal. This message is also used by the ABS module to check the brake pressure sensor located inside the HCU. |
| Brake switch on/off | PCM | Used to inform the ABS module the driver has pressed the brake pedal. This message is also used by the ABS module to check the brake pressure sensor located inside the HCU. |
| Car mode | BCM | The vehicle stability control system reacts differently depending on the current car mode; normal, factory, transport or crash. This message informs the ABS module of the current car mode. |
| Collision mitigation by braking brake precharge request | C-CM | The collision mitigation by braking system uses the ABS module for braking. Used to inform the ABS module the collision mitigation by braking event requires a precharge of the hydraulic system. |
| Collision mitigation by braking brake request | C-CM | This message informs the ABS module of the collision mitigation by braking system brake request. |
| Collision mitigation by braking deceleration request | C-CM | This message informs the ABS module of the collision mitigation by braking system deceleration request. |
| Collision mitigation by braking monitor error | BCM | This message informs the ABS module of a collision mitigation by braking system error. |
| Cruise control mode | PCM | Used to inform the ABS module of the current cruise control mode; not active, keeping speed, accelerating, decelerating, resuming high, resuming low, tap up waiting or tap down waiting. |
| Cruise control override | PCM | Used to inform the ABS module the PCM has denied the driver requested cruise control activation. |
| Cruise control status | PCM | Used to inform the ABS module of the current status of the cruise control system; off, denied, standby or active. |
| Engine off status | PCM | Used to inform the ABS module the engine is no longer running. |
| Engine RPM | PCM | Used to inform the ABS module of the current engine RPM. The ABS module uses this information for traction control and ESC system operations. |
| Ignition status | BCM | Used to inform the ABS module of the current ignition status; off, accessory, run, start, invalid or unknown. |
| RCM serial number | RCM | The ABS module stores the RCM serial number and verifies the serial number when the vehicle is started or the ignition is set to run or accessory. Over time, the ABS module learns the offset of the sensors inside the RCM. When a new serial number is found, the ABS module resets the offset number learned for ESC operation. |
| Selector lever (PRNDL) status | PCM | This message provides the ABS module with the current transmission gear status. The ESC function does not operate when the transmission is in REVERSE. |
| Steering angle calibration | PSCM (vehicles without active park assist) | This message indicates the current steering wheel angle sensor calibration; calibrated or not calibrated. The ABS module uses this message to determine the validity of the steering angle sensor signal. |
| Steering angle calibration | SCCM (vehicles with active park assist) | This message indicates the current steering wheel angle sensor calibration; calibrated or not calibrated. The ABS module uses this message to determine the validity of the steering angle sensor signal. |
| Steering angle count | PSCM (vehicles without active park assist) | This message indicates the current steering wheel angle in degrees and the number to revolutions from center. |
| Steering angle count | SCCM (vehicles with active park assist) | This message indicates the current steering wheel angle in degrees and the number to revolutions from center. |
| Steering angle initialization | PSCM (vehicles without active park assist) | This message indicates the current steering wheel angle sensor initialization; initialized or not initialized. The ABS module uses this message to determine the validity of the steering angle sensor signal. |
| Steering angle initialization | SCCM (vehicles with active park assist) | This message indicates the current steering wheel angle sensor initialization; initialized or not initialized. The ABS module uses this message to determine the validity of the steering angle sensor signal. |
| Traction control on/off | IPC | This message informs the ABS module the driver has requested the traction control system be disabled or enabled. |
| Transmission shift in progress | PCM | This message is used by the ABS module for traction control performance. |
| Vehicle configuration data | BCM | This message provides the ABS module with the current optional and configured items such as tire size, axle ratio, manual or automatic transaxle, keyless entry and VIN. |
| Wheel torque data | PCM | Used to inform the ABS module of the current drive wheel torque output in Newton meters. This message is used by the ABS module for traction control and ESC performance. |