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Home >> Saturn >> 2002 >> L100 >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Engine Controls - Theory & Operation) >> Computerized Engine Controls >> Input Devices >> Vehicle Speed Sensor

Vehicle Speed Sensor

WARNING: This page is about a different car, the 2003 Saturn LW200 and 2003 Saturn L200. However, it is still accessible from the selected car via links, so may be relevant.

The Vehicle Speed Sensor (VSS) is a Permanent Magnet (PM) generator mounted in transaxle/transmission. The VSS sends a pulsing AC voltage signal to PCM, which PCM converts into Miles Per Hour (MPH). VSS signal is used by PCM in controlling TCC and shift solenoids. Signal may also be used for instrument cluster speedometer and cruise control system. Failure in VSS circuit should set a related diagnostic trouble code.

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