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

P2314

Ignition Coil E Secondary Circuit

The ECU detects a fault on the secondary side of ignition coil A. The high-voltage spark output is missing or insufficient, leading to misfire on the affected cylinder.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / 14

Possible causes

  • Spark plug worn, fouled or with excessive electrode gap high
  • Secondary breakdown inside coil E medium
  • Spark lead or boot cracked low

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 60–280 €
  • Estimated time: 0.4–1.2 h
  • Component: ignition coil e
  • Component: spark plug cyl e
  • Component: ignition secondary lead
  • 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