U0423

DTC Troubleshooting: U0423

DTC U0423:

Invalid Data Received from PCM (Vehicle Speed Data)

1. Clear the DTCs with the HDS.

2. Start the engine, then wait at least 10 seconds.

3. Test-drive the vehicle at 6 mph (10 km/h) or more.

4. Check for DTCs with the HDS.

Is DTC U0423 indicated?

YES -

Troubleshoot the indicated PGM-FI system DTC(s).

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.