P1451

DTC P1451: Two Way Valve Bypass Valve Control Circuit High Voltage

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Do the EVAP BPS CLOSE in the INSPECTION MENU with the HDS.
4. Wait 5 seconds.
5. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1451 indicated?

YES - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.

NO - Intermittent failure, system is OK at this time.