Code result
P3470
Cylinder Deactivation Hydraulic Circuit Bank 2 Open
Moderate severity
What it means
The engine control module has detected an open hydraulic circuit in the cylinder deactivation system on bank 2. Loss of oil flow, a failed oil pressure switch or a disconnected oil control valve prevents the system from deactivating cylinders on bank 2.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Oil pressure switch failed
highOne of the most commonly reported causes for this code — check this first.
Oil passage blocked or sludge buildup
mediumA plausible cause — test and verify before replacing parts.
Oil control valve stuck
mediumA plausible cause — test and verify before replacing parts.
Related help
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