P2111 Fault Code

Throttle Actuator Control System Stuck Open

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2111 fault code indicates that the throttle actuator control system is stuck in the open position. This can prevent the throttle plate from closing correctly, leading to performance issues and potential safety hazards. Drivers may experience unexpected acceleration or difficulty controlling the vehicle’s speed.

What are the symptoms of the P2111 code?

Common symptoms associated with the P2111 code include:

• Unresponsive or excessive acceleration.
• Check Engine Light (CEL) illuminated on the dashboard.
• Erratic idle speed or rough engine performance.
• Lack of power during acceleration due to throttle malfunctions.

What causes the P2111 code?

Several factors can lead to this fault code, including:

• Sticking throttle body due to carbon buildup or debris.
• Faulty throttle position sensor (TPS) providing incorrect readings to the engine control unit (ECU).
• Issues with the throttle actuator or its wiring.
• Problems with the engine control module (ECM) that manages the actuator's operations.

How to fix P2111?

To address the P2111 fault code, consider the following steps:

1. Inspect the throttle body for any signs of debris or carbon build-up; clean if necessary.
2. Check the throttle position sensor and wiring for any faults, replacing any damaged components.
3. Test the throttle actuator for functionality and responsiveness; replace if faulty.
4. Verify the engine control module's performance and reprogram or replace as needed.
5. Clear the fault codes and test drive the vehicle to ensure the issue is resolved.