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

P0226

Throttle/Pedal Position Sensor C Circuit Range/Performance

Throttle position sensor C signal is not tracking the other channels of the redundant TPS within tolerance. The ECU compares all three channels and detects rationality failure.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / 26

Possible causes

  • TPS contact aging high
  • Dirty or sticking throttle plate medium
  • Sensor element aged beyond calibration window low

Symptoms

  • Check engine light on
  • Reduced throttle response, possible limp mode
  • Hesitation or surging
  • Idle too high or too low

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • Estimated cost: 150–700 €
  • Estimated time: 0.5–2 h
  • Component: throttle position sensor
  • Component: throttle body
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

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