Vehicle Speed Sensor Signal: Description and Operation

CIRCUIT DESCRIPTION
The ABS speed sensor detects the wheel speed sends the appropriate signals to the ABS & TRAC & VSC ECU. ABS & TRAC & VSC ECU outputs the signal to the combination meter from the ABS speed sensor.
This signal is converted into pulse inside the meter and sent as a 4-pulse signal to the suspension ECU.
The ECU calculates the vehicle speed from this pulse frequency.