Throttle Actuator Control Position Performance

What this code means

The ECM detected that the electronic throttle actuator is not achieving or maintaining the commanded throttle position within acceptable performance tolerances over time.

Symptoms

• Check Engine Light
• Sluggish throttle response
• Intermittent reduced power mode
• Unstable idle

Common causes

• Worn throttle body actuator motor
• Carbon buildup causing drag
• Throttle position sensor drift
• Wiring intermittent fault
• Throttle body return spring weak

Diagnostic steps

1. Monitor commanded vs actual throttle position over time
2. Clean throttle body
3. Perform throttle adaptation
4. Test throttle motor current draw
5. Inspect throttle body for mechanical wear

Repair notes

Clean the throttle body and perform adaptation; replace if mechanical wear is found.

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