Engine-CodesFord – P2128 2012 Ford Fusion

P2128 2012 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit High

Quick Answer

The diagnostic trouble code (DTC) P2128 for a 2012 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'E' Circuit being too high. Common causes include Faulty throttle position sensor, Wiring or connector issues in the TPS circuit, ECM software or hardware problems. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2128 2012 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'E' Circuit High.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the TPS circuit, ECM software or hardware problems.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P2128 2012 Ford Fusion Description

The diagnostic trouble code (DTC) P2128 for a 2012 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'E' Circuit being too high. This code specifically relates to the throttle position sensor (TPS) or pedal position sensor, which are crucial components for the vehicle's electronic throttle control system. The TPS is responsible for monitoring the position of the throttle valve and sending signals to the engine control module (ECM) to adjust the air-fuel mixture and control the engine's speed.

OBDII Code P2128 2012 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'E' Circuit High
P2128 2012 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit High

Common Causes of P2128 2012 Ford Fusion

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the TPS circuit
  3. ECM software or hardware problems
  4. Throttle body issues
  5. Pedal position sensor malfunction

Symptoms of P2128 2012 Ford Fusion

  1. Reduced engine power
  2. Rough idling
  3. Acceleration hesitation
  4. Check Engine Light illuminated
  5. Vehicle going into limp mode

How to Fix P2128 2012 Ford Fusion

  1. Diagnose the problem using a scan tool to verify the P2128 code and identify the specific component causing the issue.
  2. Inspect the wiring and connectors related to the throttle position sensor for any damage or corrosion.
  3. Test the throttle position sensor and pedal position sensor to determine if they are functioning correctly.
  4. Replace the faulty sensor or repair any damaged wiring or connectors as needed.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2128 2012 Ford Fusion

The typical repair costs for addressing a P2128 code on a 2012 Ford Fusion can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable prices.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2128 2012 Ford Fusion Code

1. What are common symptoms of OBDII code P2128 in a 2012 Ford Fusion?

- Common symptoms include issues with throttle response, reduced engine power, and the vehicle going into limp mode.

2. What does the OBDII code P2128 in a 2012 Ford Fusion indicate?

- The code P2128 indicates a problem with the Throttle/Pedal Position Sensor/Switch 'E' Circuit High.

3. What are possible causes of OBDII code P2128 in a 2012 Ford Fusion?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors, or issues with the engine control module (ECM).

4. How can I diagnose the OBDII code P2128 in my 2012 Ford Fusion?

- Diagnosing the code typically involves using a scan tool to check for the specific error code, inspecting the throttle position sensor and related components, and testing the wiring for continuity.

5. Can I still drive my 2012 Ford Fusion with the OBDII code P2128?

- It is not recommended to drive the vehicle with this code present, as it can lead to safety issues and further damage to the engine components.

6. How can I repair OBDII code P2128 in my 2012 Ford Fusion?

- Repairing the code may involve replacing the throttle position sensor, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

7. Is it possible to clear the OBDII code P2128 in a 2012 Ford Fusion without fixing the underlying issue?

- Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely reoccur if not properly repaired.

8. How much does it typically cost to fix OBDII code P2128 in a 2012 Ford Fusion?

- The cost of fixing the code can vary depending on the specific cause and the labor rates of the repair shop. Costs may range from a few hundred to over a thousand dollars.

9. Are there any DIY tips for troubleshooting OBDII code P2128 in a 2012 Ford Fusion?

- DIY tips include checking the throttle position sensor for wear or damage, inspecting the wiring for any visible issues, and ensuring all connections are secure.

10. How long does it take to repair OBDII code P2128 in a 2012 Ford Fusion?

- The repair time can vary based on the exact cause of the code and the complexity of the fix. It may take a few hours to a full day for the repair to be completed.

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