System Description: Speedometer

The speedometer indicates the vehicle speed.

• ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C amp. with CAN communication.
• Unified meter and A/C amp. converts the vehicle speed signal to the 8-pulse signal, and outputs the vehicle speed signal (8-pulse) to combination meter.
• Combination meter indicates the vehicle speed according to vehicle speed signal (8-pulse) signal.

Fig 1: Identifying Speedometer Communication Diagram

Courtesy of NISSAN MOTOR CO., U.S.A.