Vehicle Speed Sensor: Aerio
WARNING: This page is about a different car, the 2003 Suzuki XL-7, 2003 Suzuki Vitara, 2003 Suzuki Grand Vitara, and 2003 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
For Vehicle Speed Sensor (VSS) testing procedure, see DTC P0500: VEHICLE SPEED SENSOR (VSS) MALFUNCTION in SELF-DIAGNOSTICS - AERIO 2.0L article.