P1656 · blink 74 – Oil Control Valve Control System Malfunction
- System
- Engine control (EFI)
- Dashboard light
- Check engine light (MIL)
- Check-engine blink code
- 74
- Applies to
- 1KR-FE: M300 (Sirion export = JDM Boon M300S/M301S(4WD? see gaps) & Passo KGC10/KGC15). JDM-spec ECU not separately documented | K3-VE: M301 (Sirion 1.3 = JDM Boon M310S? / Passo QNC10)
- Description
- Oil Control Valve Control System Malfunction
- Detection / symptoms
- Detection: 1.When, under a condition where the battery voltage is 12V or more, one of the following conditions is continued over a certain length of time
- Possible causes
- Trouble area:
- What to check
- Checking points: 1.Is the control signal of the oil control valve outputted normally from the EFI ECU? 2.Is the harness between the oil control valve and the EFI ECU normal?; Unit check B8-223: OCV moves when battery voltage applied (max 1 min)
- Confidence
- high (factory manual, export spec)
From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights

