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Home >> Chevrolet >> 2001 >> Tracker 2D Utility, 4WD, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Vehicle Speed Sensor

Vehicle Speed Sensor

The Vehicle Speed Sensor (VSS) is located in output shaft of transmission (2WD) or transfer case (4WD). VSS contains a driven gear that triggers a hall switch. PCM receives a digital signal from VSS and used the signal to assist in controlling transmission and engine operation.