September 30: LEMON manuals is back up on a temporary server! Slowness is possible
System Description: Speedometer: Notes
WARNING: This page is about a different car, the 2009 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
With ABS
The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via CAN communication lines.
Courtesy of NISSAN MOTOR CO., U.S.A.