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

P059A

Active Grille Air Shutter A Position Sensor Circuit

A general circuit fault is detected on the position sensor of active grille air shutter A. The shutter (electrically actuated grille flap) opens or closes the radiator inlet for aerodynamics and warm-up control; without position feedback the ECU cannot control its angle.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 9A

Possible causes

  • Open in sensor or wiring high

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • Estimated cost: 120–500 €
  • Estimated time: 0.6–2 h
  • Component: active grille shutter a
  • Component: active grille position sensor 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