Output Speed Sensor

The output speed sensor is installed to the back side of transaxle case.

Fig 1: Primary Speed Sensor
Courtesy of NISSAN NORTH AMERICA, INC.
The output speed sensor detects final gear speed. TCM evaluates the vehicle speed from the final gear revolution.
The output speed sensor generates an ON-OFF pulse signal according to the rotating body speed. TCM judges the rotating body speed from the pulse signal.

Fig 2: CVT Control System Operation Diagram (Primary Speed Sensor)
Courtesy of NISSAN NORTH AMERICA, INC.