OBD-II code · Powertrain (generic, extended)

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.

Is it safe to drive with P210A?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyMotor winding open
  • PossibleOpen wire to motor
  • Less likelyPin pushed back out of connector body

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, Throttle Motor B, Throttle Harness

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.