OBD-II code · Powertrain (generic, extended)
P2101 Throttle Actuator Control Motor Circuit Range/Performance
The throttle motor responds, but its actual position does not track the commanded position within tolerance. Often a dirty throttle bore where the plate sticks, or a worn motor.
Is it safe to drive with P2101?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyThrottle bore coked, plate sticks
- PossibleThrottle motor worn
- Less likelySensor element aged beyond calibration window
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
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Throttle Actuator Motor, Throttle Body
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.