Powertrain
generic / SAE
P210C
Throttle Actuator B Control Motor Circuit Low
Throttle actuator B motor drive line stuck low — short to ground. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 0C
Possible causes
- Short to ground high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation 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 actuator b
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012