System Description: Speedometer
WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C amp. via CAN communication lines. After unified meter and A/C amp. receives the vehicle speed signal, it changes the signal to 8 pulse signal and provides the 8 pulse signal to the combination meter for the speedometer via communication line.