Throttle Actuator A Control Exceeded Learning Limit

Where it lives

For P2C99, start at the actuator the description names.

Check these first

• Carbon buildup in the throttle body limiting actuator A travel
• A throttle actuator A that cannot reach its learned limits
• A worn throttle body gear set
• A weak throttle actuator A motor

What to do next

1. Read throttle actuator A position and learned limits on a scan tool
2. Clean carbon from the throttle body
3. Run a throttle relearn after cleaning
4. Test the throttle actuator A motor and gears
5. Replace the throttle body if it will not relearn
6. Clear the code and retest

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