P2138 2009 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation
Quick Answer
The P2138 diagnostic trouble code (DTC) for a 2009 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation. Common causes include Faulty throttle position sensor, Faulty 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 2009 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation.
- Common causes
- Common causes include Faulty throttle position sensor, Faulty 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 2009 Ford Fusion Description
The P2138 diagnostic trouble code (DTC) for a 2009 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 sensors ensures that the engine receives the correct amount of air and fuel for optimal performance.
Common Causes of P2138 2009 Ford Fusion
- Faulty throttle position sensor
- Faulty pedal position sensor
- Wiring or connector issues in the throttle control system
- Electronic control module (ECM) malfunction
- Corrosion or contamination in sensor connectors
Symptoms of P2138 2009 Ford Fusion
- Reduced engine power
- Engine stalling or hesitation
- Rough idling or surging
- Difficulty accelerating
- Illuminated Check Engine Light
How to Fix P2138 2009 Ford Fusion
- Diagnose the issue using a scan tool to confirm the P2138 code and identify the specific sensor causing the problem.
- Inspect the throttle and pedal position sensors, as well as their wiring and connectors, for any signs of damage or corrosion.
- Replace the faulty sensor(s) if necessary, ensuring proper alignment and calibration.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying issues with the ECM or wiring.
Cost to Fix P2138 2009 Ford Fusion
The typical repair costs for addressing a P2138 code on a 2009 Ford Fusion can vary depending on the specific cause of the issue. In general, replacing a faulty sensor or repairing wiring/connectors may cost between $200 and $500, including parts and labor. However, additional diagnostic time and labor rates at auto repair shops can impact the final cost. It is recommended to consult with a professional mechanic to obtain a more accurate estimate based on the vehicle's condition and location.
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Frequently Asked Questions about P2138 2009 Ford Fusion Code
1. What are the common symptoms of OBDII code P2138 on a 2009 Ford Fusion?
- Common symptoms include reduced engine power, hesitation or stalling during acceleration, and illuminated warning lights like the Check Engine Light.
2. What does the OBDII code P2138 in a 2009 Ford Fusion indicate?
- The code P2138 indicates a potential issue with the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation.
3. What are the possible causes of OBDII code P2138 on a 2009 Ford Fusion?
- Possible causes include a faulty throttle position sensor, issues with the pedal position sensor, wiring or connection problems, or a malfunctioning electronic throttle control system.
4. How can I diagnose the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue in my 2009 Ford Fusion?
- Diagnosis typically involves using a scan tool to retrieve the trouble codes, conducting a visual inspection of the sensors and wiring, and performing voltage tests to pinpoint the faulty component.
5. Is it safe to continue driving my 2009 Ford Fusion with OBDII code P2138 present?
- It is not recommended to drive the vehicle with this code present, as it can lead to unsafe driving conditions and potential further damage to the engine.
6. Can I repair the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue in my 2009 Ford Fusion myself?
- While some DIY enthusiasts may be able to address the issue themselves, it is recommended to seek professional help to properly diagnose and repair the problem.
7. How much does it typically cost to repair OBDII code P2138 in a 2009 Ford Fusion?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred dollars to over a thousand dollars, including parts and labor.
8. Are there any preventative measures I can take to avoid OBDII code P2138 in my 2009 Ford Fusion?
- Regular maintenance, such as keeping the throttle and pedal position sensors clean and ensuring proper wiring connections, can help prevent issues that trigger this code.
9. Can a bad throttle body cause OBDII code P2138 to appear in a 2009 Ford Fusion?
- While a faulty throttle body can potentially cause related issues, the specific cause of OBDII code P2138 is more commonly associated with problems in the throttle and pedal position sensors.
10. Will resetting the OBDII code P2138 in my 2009 Ford Fusion make it go away permanently?
- Simply clearing the code without addressing the underlying issue will not permanently resolve the problem, as the issue causing the code will likely trigger it again until properly repaired.
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