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

P241C

Throttle Actuator Control System Ice Blockage Bank 2

The throttle actuator on bank 2 cannot move because of ice formation - typical for very cold ambient temperature with humid intake. Engine de-ices on warm-up.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 1C

Possible causes

  • Ice in throttle bore high

Symptoms

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

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 10–100 €
  • Estimated time: 0.1–0.5 h
  • Component: throttle actuator 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