P0720

DTC P0720/DTC NO. 31 OUTPUT SPEED SENSOR (VSS) CIRCUIT MALFUNCTION





WIRING DIAGRAM





DTC DETECTING CONDITION AND TROUBLE AREA

Reference





Oscilloscope waveforms
Connect oscilloscope between terminals E25-4 (+) and E25-16 (-) of TCM connector connected to TCM and check VSS signal.





DTC CONFIRMATION PROCEDURE

1. Turn ignition switch OFF.
2. Clear DTC stored in TCM and ECM.
3. Drive vehicle at 20 mph, 30 km/h or more for longer than 30 sec.
4. Stop vehicle.
5. Check DTC and pending DTC.





TROUBLESHOOTING (DTC P0720/DTC NO. 31)