Network Message Chart

Module Network Input Messages - ABS Module

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, Electronic Stability Control (ESC) and hill start assist functions.
Axle ratio - front	PCM	The ABS module uses the front axle ratio information for correct operation of all the stability control functions as well as anti-lock braking.
Brake pedal pressed	PCM	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.
Door ajar status	IPC	This message is sent to the IPC from the DDM 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 and the liftgate. The ABS module resets the parameters used for the Electronic Stability Control (ESC) function when a door or the liftgate is opened.
Engine Revolutions Per Minute (RPM)	PCM	Used to inform the ABS module of the current engine Revolutions Per Minute (RPM). The ABS module uses this information for traction control and Electronic Stability Control (ESC) functions.
Engine torque value	PCM	This message provides the ABS module with the current amount of torque being produced by the engine. The ABS module uses this information for correct operation of the traction control, Electronic Stability Control (ESC) and hill start assist functions.
Engine status	PCM	This message informs the ABS module of the current status of the engine system; off, ready, cranking, running, stalled, afterrun, shutdown or not defined.
Hill start assist setting	IPC	This message informs the ABS module of the current driver selected mode for the hill start assist system; off or automatic.
Ignition status	IPC	This message informs the ABS module of the current ignition status; off, accessory, run, start, unknown or invalid.
Parking brake status	IPC	This message provides the ABS module with the current parking brake switch status; applied or released.
Powertrain torque value	PCM	This message provides the ABS module with the current amount of propelling torque being applied to the driven wheels. The ABS module uses this information for correct operation of the traction control, Electronic Stability Control (ESC) and hill start assist functions.
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 diagnostic scan tool, the ABS module resets the offset number learned for the Electronic Stability Control (ESC) function.
Stability-traction control mode request	IPC	This message informs the ABS module of the current driver selected mode for the traction control system; on or off.
Steering angle	PSCM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) operation. This message provides the ABS with the current steering wheel angle in degrees.
Steering angle status	PSCM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) operation. This message provides the ABS with the current steering angle sensor status; okay or not okay.
Steering sensor calibration	PSCM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) operation. This message provides the ABS with the current steering sensor calibration status; yes (calibrated) or no (not calibrated).
Tire size data	PCM	The ABS module uses tire size data for correct operation of all the stability control functions as well as anti-lock braking.
Transmission gear position	PCM	This message informs the ABS module of which gear the transmission is currently using, this is used for the hill start assist system and the Electronic Stability Control (ESC) functions. The Electronic Stability Control (ESC) function does not operate when the transmission is in REVERSE.
Transmission gear lever position	TCM	This message informs the ABS module of the driver selected transmission gear position, this is used for the hill start assist system and the Electronic Stability Control (ESC) functions. The Electronic Stability Control (ESC) function does not operate when the transmission is in REVERSE.
Transmission shift in progress	TCM	This message informs the ABS module that the transmission is currently upshifting or downshifting. The ABS module uses this information for correct operation of the traction control and Electronic Stability Control (ESC) functions.
Vehicle configuration data	IPC	This message provides the ABS module with the current optional and configured features such as transaxle type, keyless entry and VIN.