VSS Buffer Assembly
WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Chevrolet Cavalier, 2001 Pontiac Sunfire, and 2001 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The Vehicle Speed Sensor (VSS) buffer assembly receives a signal from VSS permanent magnet generator, indicating vehicle speed. This signal is then processed by VSS buffer assembly and supplied to Powertrain Control Module (PCM), Cruise Control Module (CCM), and speedometer.