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

P26F3

Starter Relay B Stuck Off

The second starter relay does not close when commanded on. The associated starter motor cannot crank.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / F3

Possible causes

  • Burned relay contacts no longer make contact high
  • Open relay coil medium
  • Carbon or debris buildup preventing free movement low

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 50–400 €
  • Estimated time: 0.3–2 h
  • Component: starter relay b
  • Component: starter motor b
  • MIL / check engine light

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