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Normal valve lift mode 1 (default)

Rocker arm oil control solenoids A and B are both off. Engine oil pressure from the oil pump passes the spool valve and the rocker arm. Engine oil pressure is applied to the intake side pistons and the exhaust side pistons. This causes the primary and secondary rocker arms to shift the valves to their normal lift positions.

OIL PRESSURE SPECIFICATION

  Rocker arm oil control solenoid A Rocker arm oil control solenoid B Rocker arm oil pressure sensor A Rocker arm oil pressure sensor B Rocker arm operation position
Normal valve lift mode 1 OFF OFF Low High Normal lift position
Fig 1: Rocker Arm Oil Control Valve Operation Diagram - Normal Valve Lift Mode 1
G06429192Courtesy of AMERICAN HONDA MOTOR CO., INC.