Throttle Actuator B Control System - Stuck Open

Where it lives

For P211A, the description names the actuator as the part involved.

Check these first

• A dirty or carboned throttle plate holding the throttle open
• A failed throttle actuator B holding the blade open
• A failed throttle position sensor
• An open or short in the throttle actuator control circuit

What to do next

1. Read the throttle position sensors on a scan tool
2. Check the throttle plate for carbon or a mechanical bind
3. Test the throttle actuator control circuit
4. Command the throttle actuator B closed and watch travel
5. Replace the throttle body if the blade stays open
6. Clear the code and retest

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