LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2021 >> Edge SE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 581 (Anti-Lock Brake System (Abs) And Stability Control) >> Description And Operation >> Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description >> System Operation >> Network Message Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Network Message Chart

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Module Network Input Messages - ABS Module 

Broadcast Message Originating Module Message Purpose
Accelerator pedal position PCM This message is sent to the GWM and then to the ABS module. Provides the ABS module with the current accelerator pedal position and notifies the ABS module if the data is valid or invalid. The ABS module uses accelerator pedal position information for correct operation of the traction control, ESC, RSC and hill start assist systems.
Adaptive cruise control deceleration Advanced Driver Assistance System (ADAS) module This message is sent to the GWM and then to the ABS module. Contains the amount of deceleration currently required by the adaptive cruise control system to maintain the distance gap set by the driver.
Adaptive cruise control braking precharge Advanced Driver Assistance System (ADAS) module This message is sent to the GWM and then to the ABS module. This message is sent by the Advanced Driver Assistance System (ADAS) module to request precharging of the brake system in preparation for adaptive cruise control deceleration from the ABS module.
Adaptive cruise control braking request Advanced Driver Assistance System (ADAS) module This message is sent to the GWM and then to the ABS module. This message is sent by the Advanced Driver Assistance System (ADAS) module to request adaptive cruise control braking from the ABS module.
Ambient air temperature PCM This message is sent to the GWM and then to the ABS module. The ABS module uses this information for calculations in determining the operational status of the various stability control systems and features.
Collision mitigation deceleration Advanced Driver Assistance System (ADAS) module This message is sent to the GWM and then to the ABS module. This message contains the amount of deceleration currently required by the Advanced Driver Assistance System (ADAS) module to assist in collision avoidance.
Collision mitigation braking precharge Advanced Driver Assistance System (ADAS) module This message is sent to the GWMe and then to the ABS module. This message is sent by the Advanced Driver Assistance System (ADAS) module to request precharging of the brake system in preparation for collision mitigation deceleration from the ABS module.
Collision mitigation braking request Advanced Driver Assistance System (ADAS) module This message is sent to the Advanced Driver Assistance System (ADAS) module and then to the ABS module. This message is sent by the Advanced Driver Assistance System (ADAS) module to request collision mitigation braking from the ABS module.
Cruise control status PCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current cruise control system status.
Driven wheel torque output PCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current torque output available at the driven wheels. This information is used for the traction control, hill start assist, ESC and RSC feature operation.
Driver seat belt buckle status RCM Informs the ABS module of the current driver seat belt buckle status, buckled or unbuckled. The ABS module uses this information for the electric parking brake drive away release feature.
Door ajar status BCM This message is sent to the GWM and then to the ABS module. This information is used by the ABS module for hill start assist operation.
Engine status PCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current engine status; engine off, engine on, engine auto stopped, not used.
Engine RPM PCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current engine RPM. The ABS module uses this information for EPB drive away release feature, traction control, ESC, RSC and hill start assist operations.
Engine torque output PCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current engine torque output. This information is used for the traction control, hill start assist, ESC and RSC feature operation.
Hill descent control request IPC This message is sent to the GWM and then to the ABS module. Informs the ABS module the driver has requested the hill descent control™ system to be activated or deactivated.
Ignition key type BCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current ignition key type; standard or MyKey. The ABS modifies operating parameters if a restricted MyKey is used.
Ignition status BCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current ignition status.
Rear differential lock status TCCM Informs the ABS module of the current rear differential locked status. The ABS module requests rear differential unlocking during traction control, ESC and RSC operations.
Rear differential locking torque TCCM Informs the ABS module of the current amount of torque being applied to the rear differential. The ABS module requests rear differential unlocking during traction control, ESC and RSC operations.
RCM serial number RCM This message is sent to the GWM and then to the ABS module. The ABS module stores the RCM serial number and verifies the serial number when the vehicle is started or the ignition is set to ON or ACC. Over time, the ABS module learns the offset of the stability sensors inside the RCM. When a new RCM serial number is found and the ABS Calibration routine is carried out using a diagnostic scan tool, the ABS module resets the offset values learned for the yaw rate sensor, lateral accelerometer and roll rate sensor.
Reverse gear status PCM (gasoline engine and hybrid) This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current reverse gear status. This information is used for hill start assist, ESC and RSC operation. Hill start assist operates in forward and reverse gears. ESC and RSC do not operate when the transmission is in REVERSE.
Reverse gear status TCM (diesel engine) This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current reverse gear status. This information is used for hill start assist, ESC and RSC operation. Hill start assist operates in forward and reverse gears. ESC and RSC do not operate when the transmission is in REVERSE.
Selectable drive mode switch status ATCM This message is sent to the GWM and then to the ABS module. Informs the ABS module of the current selectable drive mode switch status.
Stability-traction control mode request IPC This message is sent to the GWM and then to the ABS module. Informs the ABS module the driver has requested a change to enable or disable the traction control, ESC or RSC.
Steering wheel angle PSCM (vehicles without adaptive front steering) Provides the ABS module with the current steering wheel angle in degrees as well as the steering wheel angle count (number or revolutions). The ABS module uses steering angle sensor information for ESC and RSC operation.
Steering wheel angle SASM (vehicles with adaptive front steering) This message is sent to the GWM and then to the ABS module. Provides the ABS module with the current steering wheel angle in degrees as well as the steering wheel angle count (number or revolutions). The ABS module uses steering angle sensor information for ESC and RSC operation.
Trailer sway control configuration IPC This message is sent to the GWM and then to the ABS module. Informs the ABS module the driver has requested the trailer sway control system to be activated or deactivated.
Trailer brake control connection TBM Informs the ABS module a trailer is connected to the vehicle. The ABS module uses this information for trailer sway control operation.
Transfer case lock status TCCM Informs the ABS module of the current transfer case locked status. The ABS module requests transfer case unlocking during traction control, ESC and RSC operations.
Transfer case locking torque TCCM Informs the ABS module of the current amount of torque being applied to the transfer case. The ABS module requests transfer case unlocking during traction control, ESC and RSC operations.
Transfer case range TCCM Informs the ABS module of the current transfer case range. The ABS module modifies the thresholds for traction control, ESC and RSC intervention based on the current transfer case range.
Transmission gear position PCM (gasoline engine and hybrid) This message is sent to the GWM and then to the ABS module. Informs the ABS module of which gear the transmission is currently using. This information is used for hill start assist, ESC and RSC operation. Hill start assist operates in forward and reverse gears. ESC and RSC do not operate when the transmission is in REVERSE.
Transmission gear position TCM (diesel engine) This message is sent to the GWM and then to the ABS module. Informs the ABS module of which gear the transmission is currently using. This information is used for hill start assist, ESC and RSC operation. Hill start assist operates in forward and reverse gears. ESC and RSC do not operate when the transmission is in REVERSE.
Transmission gear lever position PCM (gasoline engine and hybrid) This message is sent to the GWM and then to the ABS module. Informs the ABS module of which gear the driver has selected. This information is used for hill start assist, ESC and RSC operation.
Transmission gear lever position TCM (diesel engine) This message is sent to the GWM and then to the ABS module. Informs the ABS module of which gear the driver has selected. This information is used for hill start assist, ESC and RSC operation.
Transmission shift active PCM (gasoline engine and hybrid) This message is sent to the GWM and then to the ABS module. Informs the ABS module the transmission is currently changing gears. This information is used for traction control, ESC and RSC operation.
Transmission shift active TCM (diesel engine) This message is sent to the GWM and then to the ABS module. Informs the ABS module the transmission is currently changing gears. This information is used for traction control, ESC and RSC operation.
Vehicle configuration data BCM This message is sent to the GWM and then to the ABS module. 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.
Vehicle lateral acceleration data RCM Provides the ABS module with the current vehicle lateral acceleration data and notifies the ABS module if the data is valid or invalid. The ABS module uses the lateral acceleration data for traction control, ESC and RSC feature operation.
Vehicle longitudinal acceleration data RCM Provides the ABS module with the current vehicle longitudinal acceleration data and notifies the ABS module if the data is valid or invalid. The ABS module uses the longitudinal acceleration data for ESC and RSC feature operation.
Vehicle roll rate data RCM Provides the ABS module with the current vehicle roll rate data and notifies the ABS module if the data is valid or invalid. The ABS module uses the longitudinal acceleration data for RSC feature operation.
Vehicle yaw rate data RCM Provides the ABS module with the current vehicle yaw rate data and notifies the ABS module if the data is valid or invalid. The ABS module uses the yaw rate data for ESC and RSC feature operation.

Module Network Input Messages - SASM 

Broadcast Message Originating Module Message Purpose
Active front steering request SECM Provides the SASM with the current active front steering system information such as steering wheel offset and steering wheel angle request.
Center stack feature configuration APIM This message is sent to the GWM and then to the SASM. Informs the SASM of the current configuration of the center stack features such as push-button shift, touchscreen, FDIM, etc.
Door ajar status BCM This message is sent to the GWM and then to the SASM. Informs the SASM of the current driver door ajar status.
EPAS status PSCM This message is sent to the GWM and then to the SASM. Informs the SASM of the current EPAS system status.
Gear lever position PCM (gasoline engine and hybrid) This message is sent to the GWM and then to the SASM. Informs the SASM of the current selected transmission gear.
Gear lever position TCM (diesel engine) This message is sent to the GWM and then to the SASM. Informs the SASM of the current selected transmission gear.
Ignition status BCM This message is sent to the GWM and then to the SASM. Informs the SASM of the current ignition status.
Message center display IPC This message is sent to the GWM and then to the SASM. Informs the SASM of the current message displayed in the message center.
Message center feature configuration IPC This message is sent to the GWM and then to the SASM. Informs the SASM of the current message center feature configuration.
Odometer master value IPC This message is sent to the GWM and then to the SASM. Informs the SASM of the current odometer mileage.
Powertrain status PCM This message is sent to the GWM and then to the SASM. Informs the SASM of the current status of the engine system; Off - Torque Not Available, On - Torque Not Available, On - Torque Available or Start In Progress.
Restraint impact event status RCM This message is sent to the GWM and then to the SASM. Informs the SASM the vehicle has experienced an impact event and the severity of the impact event.
Selectable drive mode request ABS module This message is sent to the GWM and then to the SASM. Informs the SASM of the current drive mode request.
Steering angle offset ABS module This message is sent to the GWM and then to the SASM. The ABS module calculates a steering wheel angle offset based on information from the PSCM and the RCM. This information is used by the SASM for self monitoring purposes.
Steering column torque PSCM This message is sent to the GWM and then to the SASM. Informs the SASM of the current amount of torque being applied to the steering wheel. This information is used by the SASM for the adaptive steering system.
Steering wheel angle PSCM his message is sent to the GWM and then to the SASM. The PSCM sends steering angle information to the SASM for self-monitoring purposes.
Vehicle braking command ABS module This message is sent to the GWM and then to the SASM. Informs the SASM the ABS module has requested vehicle braking for adaptive cruise control or collision avoidance.
Vehicle life cycle data BCM This message is sent to the GWM and then to the SASM. Informs the ABS module SASM of the current vehicle life cycle; Normal, Factory or Transport.
Vehicle configuration data BCM This message is sent to the GWM and then to the SASM. Provides the SASM with the current optional and configured items such as tire size, axle ratio, keyless entry and VIN.
Vehicle speed ABS module This message is sent to the GWM and then to the SASM. Provides the SASM with the current vehicle speed.
Vehicle travel direction ABS module This message is sent to the GWM and then to the SASM. Provides the SASM with the current vehicle direction of travel.
Vehicle yaw rate ABS module This message is sent to the GWM and then to the SASM. Provides the SASM with the current vehicle yaw information and whether or not the information is valid.