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Module Network Input Messages - ABS Module

NOTE: The TCM is also referred to as the SOBDMC.
Broadcast Message Originating Module Message Purpose
Accelerator pedal position PCM This message is sent to the GWM and then to the ABS module. The ABS module uses accelerator pedal position information for correct operation of the traction control, ESC and hill start assist systems.
Brake on/off switch PCM This message is sent to the GWM and then to the ABS module. This message informs 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 pedal applied PCM This message is sent to the GWM and then to the ABS module. This message informs 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.
Collision mitigation by braking deceleration CCM This message is used to request vehicle deceleration by the ABS module for the collision avoidance system.
Door ajar status BCM This message is sent to the GWM and then to the ABS module. This message informs the ABS module of the current door ajar status. There is a separate message for each door. The ABS module resets the parameters used for the ESC function when a door is opened. Also, the electronic parking brake system uses the door ajar message for the automatic parking brake release feature.
Engine disable status PCM This message is sent to the GWM and then to the ABS module. This message informs the ABS module the engine is currently disabled or enabled due to the stop-start system.
Engine torque output PCM This message is sent to the GWM and then to the ABS module. This message informs the ABS module of the current engine torque output. This information is used for the hill start assist function and the various stability assist functions.
Gear lever position TCM This message is sent to the GWM and then to the ABS module. This message informs the ABS module of the current transmission gear lever position, this is used for the hill start assist system and the ESC system. The hill start assist system operates in forward and reverse gears. The ESC system does not operate when the transmission is in REVERSE.
Hill start assist request IPC This message is sent to the GWM and then to the ABS module. This message informs the ABS module of the current, driver selected mode for the hill start assist system; off, auto or manual.
Ignition status BCM This message is sent to the GWM and then to the ABS module. This message informs the ABS module of the current ignition status; off, accessory, run, start, unknown or invalid.
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 ACC. Over time, the ABS module learns the offset of the sensors inside the RCM. When a new serial number is found and the IVD Initialization procedure is carried out using a scan tool, the ABS module resets the offset number learned for ESC.
Steering angle sensor data PSCM Several steering angle messages are sent to the ABS module from the PSCM. These messages include steering angle sensor status, steering wheel angle and steering wheel rotation count. The ABS module uses the steering angle sensor data for ESC system operation.
Transmission in reverse TCM This message is sent to the GWM and then to the ABS module. This message informs the ABS module when the transmission is in REVERSE, this is used for the hill start assist system and the ESC system. The hill start assist system operates in forward and reverse gears. The ESC system does not operate when the transmission is in REVERSE.
Vehicle configuration data BCM This message is sent to the GWM and then to the ABS module. 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 rotation direction PCM This message is sent to the GWM and then to the ABS module. This message provides the ABS module with the current rotational direction of the driven wheels; forward, backward, unknown or failed.
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