OBD-II code · Powertrain (generic, extended)
P211B Throttle Actuator B Control System - Stuck Closed
Throttle B is mechanically stuck closed — carbon buildup or a seized bearing on the secondary throttle.
Is it safe to drive with P211B?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCarbon buildup holds plate closed
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- Parts involved
- Throttle Actuator B
Related codes
- P211AThrottle Actuator B Control System - Stuck Open
- P2118Throttle Actuator Control Motor Current Range/Performance
- P2119Throttle Closed Position Performance
- P211CThrottle Actuator B Control Motor Current Range/Performance
- P211DThrottle Actuator B Control Throttle Body Range/Performance
- P211EThrottle Actuator B Control Module Processor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.