Vehicle Speed Sensor
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2001 Toyota Prius, 2001 Toyota MR2, 2001 Toyota ECHO, 2001 Toyota Corolla, and 2001 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.
For vehicle speed sensor test procedures, see appropriate SYSTEM & COMPONENT TESTING article in ENGINE PERFORMANCE.