Powertrain
generic / SAE
P2111
Throttle Actuator Control System — Stuck Open
The throttle plate cannot be commanded back to the closed/idle position. Idle speed runs high or the engine cannot decelerate properly — safety-critical fault that usually triggers immediate limp mode.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 11
Possible causes
- Throttle plate seized open high
- Return spring broken medium
- Carbon or debris buildup preventing free movement 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: 80–700 €
- Estimated time: 0.5–3 h
- Component: throttle body
- Component: throttle actuator motor
- Component: throttle return spring
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012