DTC P128D: Rocker Arm Oil Pressure Sensor A Stuck High: Notes

Fig 1: Rocker Arm Oil Control Solenoids Operation Diagram

Courtesy of AMERICAN HONDA MOTOR CO., INC.

OIL PRESSURE CONDITION REFERENCE

Command			Oil pressure condition
Rocker Arm Oil Control Solenoid A	Rocker Arm Oil Control Solenoid B		Rocker Arm Oil Pressure Sensor A	Low	High	Low	High
			Rocker Arm Oil Pressure Sensor B	Low	Low	High	High
OFF	OFF	Normal valve lift mode 1		Failure (P1286)	Failure (P3400)	Normal	Failure (P128D)
OFF	ON	Normal valve lift mode 2		Failure (P2646)	Failure (P1286)	Failure (P128C)	Normal
ON	ON	Valve pause mode		Normal	Failure (P055B)	Failure (P128A)	Failure (P2646)