P2138 2012 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation
Quick Answer
The P2138 diagnostic trouble code (DTC) for a 2012 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation. Common causes include Faulty throttle position sensor, Malfunctioning pedal position sensor, Wiring or connector issues in the throttle control system. 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
- P2138 2012 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation.
- Common causes
- Common causes include Faulty throttle position sensor, Malfunctioning pedal position sensor, Wiring or connector issues in the throttle control system.
- 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.
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Code P2138 2012 Ford Fusion Description
The P2138 diagnostic trouble code (DTC) for a 2012 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation. This code is specifically related to the correlation between the throttle position sensor (TPS) and the pedal position sensor (PPS) in the vehicle's electronic throttle control system. The TPS is responsible for monitoring the position of the throttle valve, while the PPS detects the position of the accelerator pedal. The correlation between these two sensors is crucial for the proper operation of the throttle system.
Common Causes of P2138 2012 Ford Fusion
- Faulty throttle position sensor.
- Malfunctioning pedal position sensor.
- Wiring or connector issues in the throttle control system.
- Electronic throttle control system failure.
- Corrosion or damage to sensor components.
Symptoms of P2138 2012 Ford Fusion
- Hesitation or lack of response when pressing the accelerator pedal.
- Rough idling or unstable engine RPM.
- Engine stalling or shutting off unexpectedly.
- Reduced power output or acceleration.
- Illumination of the Check Engine Light on the dashboard.
How to Fix P2138 2012 Ford Fusion
- Begin by conducting a thorough diagnostic scan to confirm the P2138 code and identify the specific sensor causing the issue.
- Inspect the throttle position sensor and pedal position sensor for any signs of damage or wear. Replace any faulty sensors as needed.
- Check the wiring harness and connectors for corrosion, loose connections, or damage. Repair or replace any damaged wiring.
- Clear the diagnostic trouble codes from the engine control module and perform a throttle relearn procedure to recalibrate the sensors.
- Test drive the vehicle to ensure that the issue has been resolved and that the throttle response is smooth and consistent.
Cost to Fix P2138 2012 Ford Fusion
The typical repair costs for addressing the P2138 code on a 2012 Ford Fusion can range from $200 to $500, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes the cost of labor, which can vary between $80 and $150 per hour at most auto repair shops. It's advisable to consult with a qualified mechanic or dealership to get an accurate quote based on the vehicle's condition and location.
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Frequently Asked Questions about P2138 2012 Ford Fusion Code
1. What are the common symptoms of OBDII code P2138 in a 2012 Ford Fusion?
The common symptoms of P2138 include reduced engine power, acceleration hesitation, stalling, and illuminated Check Engine Light.
2. What does the OBDII code P2138 on a 2012 Ford Fusion indicate?
P2138 indicates a Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue, suggesting a problem with the throttle position sensor or pedal position sensor.
3. What are the possible causes of OBDII code P2138 in a 2012 Ford Fusion?
Potential causes of P2138 can include a faulty throttle position sensor, pedal position sensor, wiring issues, poor electrical connections, or a problem with the electronic throttle control system.
4. How can I diagnose the OBDII code P2138 in my 2012 Ford Fusion?
Diagnosing P2138 involves checking the throttle and pedal position sensor readings with a scan tool, inspecting the wiring and connections for damage, and performing a throttle body inspection for any signs of wear or malfunction.
5. Can I drive my 2012 Ford Fusion with OBDII code P2138?
It is not recommended to drive the vehicle with P2138 as it can lead to unsafe driving conditions due to reduced power and potential stalling. Immediate attention and repair are advised.
6. How can I repair OBDII code P2138 in my 2012 Ford Fusion?
Repairing P2138 may involve replacing the faulty throttle position sensor or pedal position sensor, repairing damaged wiring or connectors, cleaning the throttle body, and resetting the fault code with a scan tool.
7. Is it possible to reset OBDII code P2138 in a 2012 Ford Fusion without repairs?
While you can clear the fault code temporarily, it is recommended to address the underlying issue causing P2138 to prevent further problems and ensure the vehicle operates correctly.
8. Will OBDII code P2138 in a 2012 Ford Fusion cause permanent damage if left untreated?
Continued driving with P2138 may potentially cause damage to the engine or other related components over time, leading to more costly repairs. It is best to address the issue promptly.
9. How long does it typically take to repair OBDII code P2138 in a 2012 Ford Fusion?
The repair time for P2138 can vary based on the exact cause of the issue. Simple fixes like sensor replacements may take a few hours, while more complex wiring or throttle body repairs could require more time.
10. Can a DIY enthusiast fix OBDII code P2138 in a 2012 Ford Fusion?
Depending on the individual's skill level and access to tools, DIY enthusiasts may be able to address P2138 issues like sensor replacements or basic wiring repairs. However, complex issues may require professional assistance.
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