Powertrain
generic / SAE
P2106
Throttle Actuator Control System — Forced Limited Power
The TAC monitor restricts maximum throttle opening as a safety response to a TAC fault. The vehicle can still be driven, but accelerator pedal travel is capped.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 06
Possible causes
- Underlying TAC fault triggers limit high
- Pedal position sensor signal implausible medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 120–900 €
- Estimated time: 1–4 h
- Component: throttle actuator control
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012