Integra L4-1797cc 1.8L DOHC (VTEC) (1996)
Vehicle Speed Sensor: Description and Operation
With the ignition switch in ON or START (III), battery voltage is supplied to the Vehicle Speed Sensor (VSS). The speedometer and other control units
in the circuit supply about 5 volts. The vehicle speed sensor (VSS) intermittently grounds the wire which generates a pulsed signal in it. The number of
pulses per minute increases/decreases with the speed of the car.