acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

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Integra Type R Coupe L4-1797cc 1.8L DOHC (VTEC) MFI (2001)

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Vehicle Speed Sensor: Description and Operation

How the Circuit Works

With the ignition switch in ON (II) or START (III), battery voltage is supplied through fuse 15 and the 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 ORN wire.
The vehicle speed sensor (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.

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