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 / SAE

P05A0

Active Grille Air Shutter A Stuck On

Same as P059F with the shutter A stuck in the open or active position - typically broken return spring or seized linkage.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / A0

Possible causes

  • Return spring broken high
  • Carbon or debris buildup preventing free movement low
  • Component wear with age - mechanical play low

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • Estimated cost: 120–600 €
  • Estimated time: 0.6–2.5 h
  • Component: active grille shutter a
  • MIL / check engine light

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