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

P2429

Exhaust Gas Temperature Too High Bank 2

An EGT sensor on bank 2 reports a temperature above the safety threshold for prolonged operation - typical for blocked DPF, restricted exhaust, or excessive fuelling. Risk of catalyst, DPF or turbo damage.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 29

Possible causes

  • DPF blocked or active regeneration high

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • Estimated cost: 200–2500 €
  • Estimated time: 1–8 h
  • Component: exhaust gas temperature sensor b2
  • Component: dpf b2
  • 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