P1656 · blink 39 – OCV CIRCUIT MALFUNCTION
- System
- EFI 1NZ-FE/2NZ-FE
- Dashboard light
- Malfunction indicator lamp (Check Engine)
- Check-engine blink code
- 39
- Market note
- UNLEADED GASOLINE ONLY
- Applies to
- 2NZ-FE 1.3 (PK XLi/GLi NZE120) and 1NZ-FE 1.5 (JDM NZE121/NZE124 Corolla/Fielder/Runx)
- Description
- OCV CIRCUIT MALFUNCTION
- Detection / symptoms
- Detection: Open or short in oil control valve circuit
- Possible causes
- Open or short in oil control valve circuit; Oil control valve; Engine ECU
- What to check
- Workshop check order (RM821E): INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY -> INSPECT ECU -> CHECK HARNESS AND CONNECTOR(ENGINE ECU−OCV)
- Confidence
- high (official Toyota RM821E)
From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights