P1656 · blink 39 – OCV CIRCUIT MALFUNCTION

System: EFI 3ZZ-FE
Dashboard light: Malfunction indicator lamp (Check Engine)
Check-engine blink code: 39
Applies to: 3ZZ-FE 1.6 (PK SE Saloon 1.6 2002-05 ZZE121)
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