Oasis LS L4-2156cc 2.2L SOHC MFI F22B6 (1997)
Vehicle Speed Sensor: Description and Operation
With the ignition switch in ON (II) or START (III), battery voltage is supplied through fuse 1 and the YEL wire to the Vehicle Speed Sensor (VSS). The
sensor is grounded through the powertrain control module. The speedometer and other control units in the circuit supply 5 volts or more to the ORN
wire. The VSS intermittently grounds the ORN wire which generates a pulsed signal in it. The number of pulses per minute increases/decreases with the
speed of the car.
