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 systems.
Brake on/off switch	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.
Clutch Pedal Position	PCM	This message informs the ABS module the driver has pressed the clutch pedal. This message is used by the ABS module for the hill start assist system.
Cruise control status	PCM	This message informs the ABS module of the current status of the cruise control system; off, denied, standby or active.
Driver request traction control mode	BCM	This message informs the ABS module the driver has disabled the traction control function.
Power pack status	PCM	This message provides the ABS module with the current engine status; awake, ready, pre-starting, starting in process, running_running, running_standby, running_starting in progress, running_remote started and after run.
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 stability 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 Electronic Stability Control (ESC).
Reverse gear status	PCM (manual transmission only)	This message informs the ABS module when the transmission is in reverse gear, this is used for the hill start assist system and the Electronic Stability Control (ESC) system. The hill start assist system works in forward and reverse gears. The Electronic Stability Control (ESC) system does not operate when the transmission is in REVERSE.
Selector lever (PRNDL) status	TCM (automatic transmission only)	This message informs the ABS module when the transmission is in reverse gear, this is used for the hill start assist system and the Electronic Stability Control (ESC) system. The hill start assist system works in forward and reverse gears. The Electronic Stability Control (ESC) system does not operate when the transmission is in REVERSE.
Steering angle counter	SASM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) system operation. This message provides the ABS module with the current steering wheel angle count.
Steering angle status	SASM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) system operation. This message provides the ABS with the current steering angle sensor status; operational with no faults detected, SASM not initialized with no faults detected and fault detected.
Steering wheel direction of travel	SASM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) system operation. This message provides the ABS module with the current steering wheel direction of travel.
Torsion bar torque	PSCM	The ABS module uses steering angle sensor information for Electronic Stability Control (ESC) system operation. This message provides the ABS module with the current amount of torque being applied to the steering system.
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.

MODULE NETWORK INPUT MESSAGES - SASM MODULE

Broadcast Message	Originating Module	Message Purpose
Power mode	BCM	This message provides the SASM with the current ignition status; key in, key out, accessory, ignition ON, engine running and engine cranking.