ABS Actuator and Electric Unit (Control Unit)
WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
ABS actuator and electric unit (control unit) transmits the vehicle speed signal to BCM via CAN communication.
BCM also receives the vehicle speed signal from combination meter via CAN communication. BCM compares both signals to detect the vehicle speed.