Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Honda Insight BaseFACTORY OEM SERVICE PROCEDURE
DTC P3400: Valve Pause System (VPS) Stuck OFF: Notes
| 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) |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.