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

P2411

Fuel Cap Sensor/Switch Circuit

A general electrical fault on the fuel cap sensor/switch circuit — open or short.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 11

Possible causes

  • Signal wire open high
  • Cap switch failed medium

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 30–150 €
  • Estimated time: 0.2–0.8 h
  • Component: fuel cap sensor
  • Component: sensor wiring
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

Sources

References

sae:J2012

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