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Home >> Saturn >> 1994 >> SW2 Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Vehicle Speed Sensor (VSS)
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Vehicle Speed Sensor (VSS)

VSS is a Permanent Magnet (PM) generator mounted in transmission. The VSS sends a pulsing signal to PCM, which PCM converts into miles per hour (MPH). This sensor input is used by PCM in controlling converter clutch engagement. Signal may also be shared with instrument cluster and cruise control system.