Network Message Chart

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

NETWORK MESSAGE

Broadcast Message	Originating Module	Message Purpose
ACC_brake deceleration request	C-CM	The adaptive cruise control system uses the ABS for braking. This message is used to alert the ABS that the adaptive cruise control system needs to decelerate and/or brake.
Accelerator pedal position	PCM	The ABS module uses accelerator pedal position information for correct operation of the traction control, ESC , RSC® and hill descent control systems.
AWD lock status	PCM	The ABS module disables some vehicle dynamic systems and increases the minimum threshold for other vehicle dynamic systems when the AWD system is engaged.
AWD torque actual	PCM	The ABS module can request that the transfer case be disengaged in the event that ESC intervention is necessary. The ABS module needs to know the actual torque being applied to the AWD system before requesting the transfer case to be disengaged.
Brake pedal applied	PCM	This message informs the ABS module that 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 dynamic 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.
Cruise control override	PCM	This message informs the ABS module that the PCM has denied the driver requested cruise control activation.
Cruise control status	PCM	This message informs the ABS module of the current status of the cruise control system; off, denied, standby or active.
Drivers door ajar status	BCM	The ABS module resets the parameters used for the RSC® function when the driver door is opened.
Drivers rear door ajar status	BCM	The ABS module resets the parameters used for the RSC® function when the driver rear door is opened.
Engine off	BCM	This message informs the ABS module that the engine is no longer running.
EPAS failure	PSCM	The ABS uses steering angle information from the PSCM for ESC and RSC® . This message informs the ABS module that there is an internal error in the PSCM .
Hood ajar status	BCM	The ABS module resets the parameters used for the RSC® function when the hood is opened.
Ignition status	BCM	This message informs the ABS module of the current ignition status; off, accessory, run, start, invalid or unknown.
Liftgate ajar status	BCM	The ABS module resets the parameters used for the RSC® function when the liftgate is opened.
Passenger door ajar status	BCM	The ABS module resets the parameters used for the RSC® function when the passenger door is opened.
Passenger rear door ajar status	BCM	The ABS module resets the parameters used for the RSC® function when the passenger rear door is opened.
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 RSC® .
Selector lever (PRNDL) status	PCM	This message provides the ABS module with the current transaxle gear status. The ESC and RSC® functions do not operate when the transaxle is in REVERSE.
Selector lever (PRNDL) status	TCM (2.0L GTDI Only)	This message provides the ABS module with the current transaxle gear status. The ESC and RSC® functions do not operate when the transaxle is in REVERSE.
Steering angle	PSCM (vehicles without active park assist)	The PSCM calculates the steering angle based on input from the 2 internal steering sensors and from the wheel speed sensor message from the ABS module. The steering angle is then sent to the ABS module over the HS-CAN .
Steering angle	SCCM (vehicles with active part assist)	Vehicles equipped with active park assist require more precise steering information than vehicles without active park assist. This is accomplished by using a separate steering wheel angle sensor, the SCCM receives steering angle information from this separate steering wheel angle sensor and then sends the information to the ABS module over the HS-CAN . The ABS module also compares the information received from the SCCM and the PSCM .
Steering angle count	PSCM (vehicles without active park assist)	The PSCM calculates the steering angle count on input from the 2 internal steering sensors and from the wheel speed sensor message from the ABS module. The steering angle count is then sent to the ABS module over the HS-CAN . The ABS module uses this message to determine the validity of the steering angle sensor signal.
Steering angle count	SCCM (vehicles with active part assist)	Vehicles equipped with active park assist require more precise steering information than vehicles without active park assist. This is accomplished by using a separate steering wheel angle sensor, the SCCM receives steering angle count information from this separate steering wheel angle sensor and then sends the information to the ABS module over the HS-CAN . The ABS module also compares the information received from the SCCM and the PSCM .
Steering angle initialization	PSCM (vehicles without active park assist)	When a new PSCM is installed on a vehicle, the module must be properly initialized for the ABS to function correctly. If initialization has not taken place, the PSCM broadcasts a "not initialized" message on the HS-CAN .
Steering angle initialization	SCCM (vehicles with active part assist)	When a new steering wheel angle sensor is installed on a vehicle, the SCCM must be properly initialized for the ABS to function correctly. If initialization has not taken place, the SCCM broadcasts a "not initialized" message on the HS-CAN .
Traction control on/off	IPC	This message informs the ABS module that the driver has requested the traction control portion of the vehicle dynamic system be disabled or enabled.
Trailer sway configuration command	IPC	Informs the ABS module that the driver has turned the trailer sway control on or off.
Transmission shift in progress	PCM	This message is used by the ABS module for traction control performance.
Transmission shift in progress	TCM (2.0L GTDI Only)	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, engine type, transmission type, keyless entry and VIN .