DTC P0500 - Vehicle Speed Sensor (VSS) Malfunction

1. Connect scan tool to Data Link Connector (DLC). Test drive vehicle. Observe speedometer. If speedometer operates, go to next step. If speedometer does not operate, go to step 4).
2. If vehicle speed is displayed on scan tool, check for an intermittent problem. See TESTS W/O CODES article. If vehicle speed is not displayed, turn ignition off and go to next step.
3. Remove instrument cluster. See appropriate INSTRUMENT PANEL article in the ACESSORIES/SAFETY EQUIP. section. Turn ignition on. Using a voltmeter, backprobe between ground and VSS terminal of instrument cluster harness connector. See Fig 1 . If reading is 4-6 volts, replace speedometer. If reading is not as specified, check VSS circuit (Purple wire) for an open or short to ground. Repair as necessary. If wire is okay, replace PCM. Retest system.
4. Remove VSS from transaxle. Inspect VSS gear for damage or binding. Using an ohmmeter, measure resistance between sensor terminals. Resistance should be 300-450 ohms at 68°F (20°C). Disconnect ohmmeter. Rotate VSS gear by hand. Magnetic pulse resistance should be felt as VSS is rotated. If operation is not as specified, replace VSS. If operation is as specified, repair Purple/Yellow wire between VSS and speedometer for an open or short to ground. Retest system.

Fig 1: Identifying VSS Terminal At Instrument Cluster Connector

Courtesy of SUZUKI OF AMERICA CORP.