OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic or reserved

P34A2

Cylinder 11 Deactivation/Intake Valve Performance

Per-cylinder intake valve deactivation on cylinder 11 does not respond as commanded.

SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / A2

Possible causes

  • Actuator stuck mechanically high

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 400–3000 €
  • Estimated time: 3–10 h
  • Component: cyl11 intake valve actuator
  • Component: hydraulic pin
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication