P2112 Fault Code

Throttle Actuator Control System Stuck Closed

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

The P2112 code indicates that the throttle actuator control system is stuck in the closed position. This can prevent the engine from getting enough air, causing a decrease in performance and efficiency. It often triggers the check engine light and can lead to problems with acceleration if not addressed.

What are the symptoms of the P2112 code?

Drivers may notice several symptoms when the P2112 code is present:

• Reduced engine power
• Unresponsive or delayed acceleration
• Engine stalling
• Rough idling or poor engine performance
• The check engine light may be illuminated on the dashboard.

What causes the P2112 code?

Several factors can lead to a P2112 fault code, including:

• A faulty throttle position sensor (TPS)
• Issues with the throttle body
• Wiring problems or poor connections in the throttle control system
• Malfunctions in the engine control module (ECM)
• Debris or carbon buildup within the throttle body leading to sticking.

How to fix P2112?

To resolve a P2112 code, the following steps are typically recommended:

1. Inspect the throttle body for dirt or carbon buildup, and clean if necessary.
2. Check the throttle position sensor and its wiring for faults.
3. Verify that the throttle body is functioning correctly and is not stuck.
4. Update or reprogram the ECM if it is found to be faulty.
5. Clear the fault code and test drive the vehicle to see if the issue returns.