DTC U0423: Invalid Data Received from PCM (Vehicle speed data)
- Clear the DTCs with the HDS (see General Troubleshooting Information ).
- Start the engine, then wait at least 3 seconds.
- Test-drive the vehicle at 6 mph (10 km/h) or more.
- Check for DTCs with the HDS (see General Troubleshooting Information
).
Is DTC U0423 indicated?
YES -Troubleshoot the indicated PGM-PI system DTC(s). After troubleshooting, clear the DTC.
NO -Intermittent failure, the system is OK at this time.