Throttle Actuator Control System - Forced Engine Shutdown

Where it lives

For P2105, the part to look at first is the actuator named here.

Check these first

• A throttle actuator that fails to follow the commanded position
• A failed throttle position sensor
• An open or short in the throttle actuator control circuit
• A failed throttle actuator control module

What to do next

1. Read the throttle position sensors on a scan tool
2. Command the throttle actuator through its range
3. Test the throttle actuator control circuit for open and short faults
4. Check the throttle body for carbon or mechanical binding
5. Replace the throttle actuator control module if the circuit tests good
6. Clear the code and retest

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