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

P0A11

DC/DC Converter Enable Circuit/Open

The DC/DC converter enable circuit reports a enable circuit/open condition. Converter cannot be commanded to start reliably.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 11

Possible causes

  • Open in enable wire high
  • Enable switch failed medium
  • Pin pushed back out of connector body low

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • Estimated cost: 200–1200 €
  • Estimated time: 1–5 h
  • Component: dcdc converter enable circuit
  • Component: wiring harness
  • Component: hybrid control module
  • MIL / check engine light
  • limp mode possible

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