P210D code meaning
Throttle Actuator B Control Motor Circuit High
Powertrain system Generic code P21xx codes Check engine light
What P210D means
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.
P210D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P210D
- Reduced power and uneven running
- Engine warning lamp on
Common causes of P210D
- Most likelyThrottle B motor wire shorted to battery voltage
- PossibleDamaged or wet connector at throttle body B
- Less likelyFaulty bank 2 output stage in the ECU
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Throttle actuator b
What each part of P210D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1 | Area: fuel and air metering. |
| 0D | The exact fault in that area. |
What to do next
- Note P210D and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P210D
What does P210D mean?
P210D means "Throttle Actuator B Control Motor Circuit High". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P210D?
Drive gently and only to a workshop. With P210D the car can go into limp mode (reduced power) to protect itself.
Will P210D fail an emissions test?
Yes, it can. P210D is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P210D to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P210D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.