P210DThrottle Actuator B Control Motor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P210D covers the high-side fault of the second throttle drive: a voltage on the motor B circuit that suggests a short to battery, or a supply that stays live when the stage should be off. No manufacturer documents this code publicly. On twin-throttle engines that publish their logic, GM (23OBDG07) and Ford (2024) collect the electrical faults of throttle B under P210A, so P210D will rarely be seen. The CARB rule for output components still applies: an electrical fault in an actuator that affects emissions must be detected and stored. If it appears, treat it like P2103 for bank 1: inspect wiring and connector of throttle B for chafing to a positive feed, then the motor and the ECU output. The engine runs on reduced power.
- What you may notice
- Reduced power and uneven running
- Engine warning lamp on
- Likely causes
- LikelyThrottle B motor wire shorted to battery voltage
- PossibleDamaged or wet connector at throttle body B
- RareFaulty bank 2 output stage in the ECU
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €40 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.