Throttle Actuator Control System - Forced Idle

Where it lives

For P2104, the part to look at first is the actuator named here.

Check these first

• A throttle actuator that will not follow the commanded position
• A failed throttle position sensor
• A dirty or carboned throttle body
• 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. Watch commanded and actual throttle position together
3. Clean the throttle body carbon
4. Test the throttle actuator control circuit
5. Replace the throttle actuator or throttle body if travel is wrong
6. Clear the code and retest

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