P210A
Throttle Actuator B Control Motor Circuit/Open
The drive circuit of throttle actuator motor B is open. Throttle B is the secondary throttle on engines with two throttle bodies — typically used for tumble flap or charge-motion control.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Common causes
Ordered by how often each turns out to be the cause.
- Motor winding openCommon
- Open wire to motorPossible
- Pin pushed back out of connector bodyLess likely
Parts involved
- Throttle Actuator B
- Throttle Motor B
- Throttle Harness
P210A is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.