DTC P0500: Vehicle Speed Sensor (VSS) Malfunction (Forester, IMPREZA & Outback Sport)
- Perform test procedure. See TESTING PROCEDURE . If vehicle is equipped with automatic transaxle go to next step. If vehicle is equipped with manual transaxle, go to step 3.
- If DTC P0720 is not present, go to next step. If DTC P0720 is present, check front vehicle speed sensor signal circuit. See DTC 33 in appropriate DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS in TRANSAXLE/TRANSMISSION.
- Check speedometer operation. If speedometer operates normally, go to next step. If speedometer does not operate normally, see INSTRUMENT PANELS - LEGACY & OUTBACK article in ACCESSORIES & EQUIPMENT. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
- Turn ignition off. On Forester, disconnect Green 18-pin instrument cluster electrical harness connector I10. On Impreza and Outback Sport, disconnect Green 10-pin instrument cluster electrical harness connector I10. On Forester, use a DVOM to measure resistance of Green/Black wire by backprobing between 28-pin ECM electrical harness connector B135 terminal No. 24 and Green 18-pin instrument cluster electrical harness connector terminal No. 7. See Figure and Figure . On Impreza and Outback Sport, use a DVOM to measure resistance of Green/Yellow wire by backprobing between 28-pin ECM electrical harness connector B135 terminal No. 24 and Green 10-pin instrument cluster electrical harness connector terminal No. 2. See Figure and Figure . If resistance is less than 10 ohms, repair poor terminal contact in ECM connector. If resistance is not less than 10 ohms, locate and repair open circuit in wiring and check for poor terminal contact in all connectors between ECM and instrument cluster. See ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .