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

P0611

Fuel Injector Control Module Performance

Modern direct-injection systems use a dedicated injector driver module that generates the high-voltage charge pulses needed to open piezo or solenoid injectors. The module reports an internal performance fault.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 11

Possible causes

  • Driver module internal fault high
  • Module software outdated, reflash may resolve low
  • Supply voltage outside specification low

Symptoms

  • Check engine light on
  • Misfire or rough idle on the affected cylinder
  • Increased fuel consumption
  • Possible fuel smell or smoke from exhaust

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 400–2500 €
  • Estimated time: 2–6 h
  • Component: fuel injector control module
  • MIL / check engine light
  • emissions-relevant

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