P3466Cylinder Deactivation Hydraulic Circuit Bank 1 Open
The engine control module has detected an open hydraulic circuit in the cylinder deactivation system on bank 1. The system uses pressurized engine oil routed through dedicated lifters and oil control valves to collapse valves; an open circuit indicates loss of oil flow or a failed pressure switch.
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Possible Causes
The components or conditions that trigger this code
- 1Oil pressure switch failed Oil passage blocked or sludge buildup Oil control valve stuck
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: shop_only. Estimated time: 2-10 hours. Estimated cost: €300-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
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