Normal Operation and Fault Conditions
WARNING: This page is about a different car, the 2019 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
With the ignition ON, the FCIM sends messages to the ABS module through the GWM over the MS-CAN. If the ABS module does not receive these messages within a certain time frame (usually less than 1 second), the module sets DTCs. For information on the messages sent to the ABS module by the FCIM, refer to the Description and Operation in Anti-Lock Brake System (ABS) and Stability Control.