PassoFix

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

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