Vehicle Speed Sensor: Description and Operation

Purpose:
The vehicle speed sensor (VSS) is a variable reluctance pulse generator that senses the transaxle output.

Operation:
It operates between 0-161 km/h (0-120 mph).

The VSS informs the PCM of vehicle speed.

The PCM uses VSS input to provide vehicle speed to the instrument cluster for the speedometer. On vehicles equipped with cruise control, this signal also goes to the cruise control module and PCM.