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P3486

Cylinder 11 Exhaust Valve Control Circuit Performance

Per-cylinder exhaust valve control on cylinder 11 does not respond as commanded. Mechanical issue at the deactivation actuator for that cylinder.

  • Check engine light: Yes
  • Emissions related: Yes
  • Repair difficulty: hard

Common causes

Ordered by how often each turns out to be the cause.

  • Actuator stuck mechanicallyCommon

Parts involved

  • Cyl11 Exhaust Valve Actuator
  • Hydraulic Pin

P3486 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.