OBD-II code · Powertrain (generic, extended)
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.
Is it safe to drive with P210C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
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
- P210AThrottle Actuator B Control Motor Circuit/Open
- P2109Throttle/Pedal Position Sensor A Minimum Stop Performance
- P210BThrottle Actuator B Control Motor Circuit Range/Performance
- P210DThrottle Actuator B Control Motor Circuit High
- P210EThrottle/Pedal Position Sensor/Switch C/F Voltage Correlation
- P210FThrottle Actuator B Control System - Forced Limited RPM
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.