Civic Hatchback L4-1.6L SOHC (16 Valve) (1996)
Vehicle Speed Sensor: Description and Operation
With the ignition switch in ON (II) or START (III), battery voltage is supplied through fuse 15 and the BLK/WHT and BLK/YEL wire to the vehicle
speed sensor (VSS). The sensor is grounded by the BLK wire to G101. The speedometer and other control units in the circuit supply about 5 volts to the
BLU/WHT wire. The vehicle speed sensor (VSS) intermittently grounds the BLU/WHT wire which generates a pulsed signal in it. The number of pulses
per minute increases/decreases with the speed of the car.